US2396638A - Code translator - Google Patents

Description

I c. w. BURC Y- 2,396,638

CODE TRANSLATOR Filed Nov. 20, 1944 4 Sheets-Sheet 1 HARLES W. BURCKY h ATT NEY 7 March 19, 1946. c. w. BURCKY 2,396,533

CODE TRANSLATOR Filed Nov. 20, 1944 4 Sheets-Sheet 2 FIG. 2

w mvswfon CHARLES w. BURCKY i March 19, 1946. h I c, w BURCKY 2,396,638

' 001m TRANSLATOR \pilea Nov. 20, 1944 v 4 Sheets-Sheet 3 [-16.3 INVENTOR CHARLES w. BURCKY Patented Mar. 19, i946 no STATES Teletype Corporation tion of Delaware Chicago, 111., a corpora- Application November 20, 1944, Serial No. 564,343

13 Claims.

The present invention relates to telegraph apparatus and more particularly to code translation apparatus.

It has previously been customary in the transmission of signals over radio channel to transmit said signals in Morse or similar codes. Such codes, which are predicated on the use of dot and dash current conditions and zero current conditions, are usually utilized to prepare a tape at the receiving station; in accordance with the message transmittecl' While such communications are satisfactory when they are received at the receiving station, it is often desired to retransmit these code signals over land telegraph lines. However, inasmuch as land telegraph lines do not usually utilize Morse or similar code but instead some other type code, such as the well-known unit Baudot code, it becomes necessary to translate the received signals to those of the latter type of code.

Accordingly, it is the object of this invention to provide apparatus, to overcome the foregoing ob-.

jections and to permit the required code translation.

In general, the apparatus comprises a plurality of distributors all of which are connected to a common radio receiver but only one of which is responsive at any one time to a character code signal. The distributors are utilized t distinguish between dot, dash and zero conditions in the routing of these conditions to groups of magnets associated with each distributor. Each distributor is so provided that it will only be responsive to a complete character, and thereafter, supervision of a second group of magnets will b automatically transferred to the second distributor, which, in turn, will be responsive to a complete character. Thereafter, the other distributors will autc-mati-. cally successively be utilized in a similar manner, and after all of the distributor have been utilized supervision will again be returned to the initial distributor. The magnets which are under the control of the distributors and which are energized or not energized, depending upon the incoming Morse code signal, control a plurality of armatures which in turn cause associated notched code elements to be positioned accordingly. At a predetermined time in the cycle of operation of the apparatus an operating lever will be selected, depending upon the position or selection of the notched code elements, which causes a character to be recorded byan associated telegraph apparatus, such as a keyboard perforator, a printer, or direct retransmission equipment. Means are provided to automatically sequence the controls for the distributors whereby the distributors are automatically successively operated, and means are likewise provided to control the operating levers and also to reset the notched code bars after a character has been recorded.

The features and advantages of the present invention will become apparent from the following detailed description of a specific embodiment thereof, when read in conjunction with the accompanying drawings, in which,

Fig. l is' a schematic wiring diagram of the apparatus embodying the invention, disclosing two of the distributors, part of the magnets comprising the magnet groups, and the distributor sequencing apparatus;

Fig. 2 is the remaining portion, in schematic form, of the wiring diagram disclosing the remainin distributors and the remaining magnets comprising the magnet groups;

Fig. 3 is a plan view, partly broken away, disclosing certain of the apparatu embodying the invention;

Fig. 4 is a sectional view, partly broken away, taken approximately on the line 3-4 of Fig. 3;

Fig. 5 is a, sectional view, partly broken away, taken approximately on the line 5-5 of Fig. 3; and

Fig. 6 is an enlarged detail view showing more clearly certain of the apparatus embodying the invention.

Referring to Figs. 1 and 2, a radio receiver has been designated generally by the numeral II, which is of a standard type and which receives the signals incoming over the radio channel, and through the usual elements therein, including an amplifier, passes out therefrom the code signals as dots, dashes or Zero electrical conditions over a common conductor l2. The common conductor I2 is connected by conductors it tell, inclusive, to five distributors indicated generally by the numerals [9 to 23, inclusive, respectively.

Each ofthe distributors E9 to 23, inclusive, is

similar in design and elements, so the following inner ring 25 adjacent thereto, a third concentric ring 21 which is solid with the exception of a single segment 28 insulated therefrom, for a purpose to be described hereinafter, and a fourth concentric solid ring 29. A brush arm 3| is provided which is securely fastened to a shaft 32 and rotates therewith. A section 33 of th brush arm 3| is insulated from the remainder of the brush arm and has a pair of brushes thereon which bridge the solid ring 59 and the substantially solid ring 21. The brush arm 3| also has a second section 34 insulated from the remainder of the brush arm which bridges the solid ring 26 and the segmented ring 25.

By referring to Fig. 3, it may be seen that the shaft 32 has a gear 33 thereon which meshes with a pinion gear 31 which is securely fastened to rotate with a shaft 38. The shaft 38, which is mounted in bearing blocks 39, only one of which is shown in Fig. 3, has a gear 4| securely fastened toward its rightward extremity and is driven by a pinion gear 42 securely fastened to a shaft 43. As may be seen, the shaft 43, which is rotatably mounted in bearing blocks 44, has a gear 45 secured thereto which derives its rotational movement from a gear 41, fastened to the end of a shaft 48 extending from a motor 49.

The shaft 43 is thus continuously rotated, through power derived from motor 49, and in turn imparts continuous rotation to the shaft 38. However, the distributor brush arm 3| and the shaft 32'are not continuously rotated, as a clutch connection, which is similar to any standard type clutch, has a stop arm normally urged by a spring 52 in such a manner as to disconnect the clutch and to cause the cessation of rotation of the brush arm 3| and shaft 32. A magnet 53 is provided, which upon the energization thereof attracts the armature 5| thereto, thereby removing the armature from blocking engagement with respect to the clutch, thus allowing rotation of the shaft 32 and the brush, arm 3|. It is to be noted that the associated pair of gears 45 and 41, and likewise the associated pair of gears 4| and 42,are of different sizes. Such provision has been made so that the speed of the respective shafts may be regulated and thereby allow certain timing between the various elements of the apparatus. I

The segmented ring 25 of the distributorface is divided into twenty equal segments, each insulated from the adjacent ones thereto. The segment 54 of the insulated segments of each of the distributors is connected, by means of a conductor 55, to a common conductor 55 which extends to all of the distributors similarly, and which is connected at its leftward end in a manner to be described hereinafter. A blank segment 51 is provided which is not electrically connected in any manner at all. The remaining eighteen segments 53 are connected by means of conductors 58 to the left-hand winding of a series of eighteen magnets 59; When referring to Figs. 1 and 2, placed adjacent to each other, the upper horizontal row of eighteen magnets 59 are associated with the distributor generally indicated by the numeral H! by means of the conductors 58. It may be seen that the segments 60 of the distributor indicated generally by the numeralZU are connected by eighteen conductors 6| to the left-hand windings of eighteen magnets 52. The magnets 62 may be identified as the second horizontal row of magnets from the top.

Similarly, the segmentsfill of the distributor indicated generally by the numeral 2| are connected by means of eighteen conductors 63 to the left-hand windings of eighteen magnets 64 which comprise the middle horizontal row of magnets seen in Figs. 1 and 2, and the segments 60 of the distributor indicated generally by the numeral 22 are connected by means of eighteen conductors 65 to the left-hand windings of eighteen magnets -61, shown as the second from the bottom horizontal row of magnets in the drawings. Likewise, the segments 65 of the distributor indicated generally by the numeral 23 are connected over eighteen conductors 68 to the left-hand windings of eighteen magnets 59 which are shown as the bottom horizontal row of magnets in the drawings. It is to be noted that in Figs, 1 and 2 the conductors 58, 6|, 63, 66, and 58 have not been shown as connected to all of their associated magnets 59, 62, 54, El, and 65, respectively. Such omission of connections has been purposely made, because in the event that all of the connections were completely shown the number of wires in the drawings would make it exceedingly diflicult to trace any one circuit. Therefore, even though such connections have not been shown fully, it is understood that they are contemplated, as described above.

Each of the magnets 59 is connected by means of a conductor 58 to one of the segments 60 of the segmented ring 25 of the distributor indicated generally by the numeral l9, and has an independent right-hand winding and an armature l2. Each of the armatures l2 are connected by means of conductors 13 to a common conductor 14 which extends to the long segment of the substantially solid ring 21 associated with the distributor indicated' generally by the numeral 25. The armatures I2 and the right-hand windings of the magnets 59 are provided to constitute locking circuits for the magnets 58 once they are energized; that is, to hold the magnets 59 in an energized condition for a predetermined length of time, as will be hereinafter described. Similarly, each of the right-hand windings of the magnets 62 associated with the segments El) of the segmented ring 25 of the distributor indicated generally by the numeral 20 are connected over a common conductor 14 to the substantially solid ring 21 associated with the distributor generally indicated by the numeral 2|. In a similar manner locking circuits are provided for magnets 64, 51 and 59 by connection to the substantially solid rings 21 of the distributors indicated generally by the numerals 22, 23, and 99, respectively. The manner of operation of the magnet circuits and the looking circuits therefor, including the de-energization of said magnets, will be described more fully hereinafter.

As previously mentioned, each of the segments 54 of the segmented distributor rings 25 are connected by means of a conductor to a common conductor 55, joining all of the distributors. The opposite connection of the common conductor 56 is to a shaft '14, which is more fully disclosed in Fig. 6, by means of a slip ring connection, or a similar device. The electrical circuit contemplated, and described above, is continued through the shaft 14 to an arm i5 which electrically bridges the circuit to one of a plurality of five contact points it, the circuit being continued only through the point 16 with which the arm 15 is in engagement at any particular time. As may be seen by referring to Fig. 6, the contact points 16 are positioned in a contact plate 18 which is constructed of an insulating material, thereby preventing electrical current from being transmitted from adjacent contact points to each other. Referring back again to Fig. 1, it may be seen that the five contact points 16 are connected by means of conductors 89 to 85, inclusive, to the magnets 53 associated with the distributors indicated generally by the numeral I9 to 23, inclusive, respectively.

By again referring to Fig. 6, it is to be seen that a second arm 86 is securely fastened to the shaft I4, but which is insulated from the shaft I4. Associated with the arm 86 is a second contact plate 81, likewise constructed of insulating material, and having five pairs of contacts 88 secured therein. Each of the pairs of contacts, which have been indicated generally by the numeral 83 designating a pair, are so positioned that the arm 86, when in a set position, may bridge two adjacent contacts; that is, may bridge electrically one pair of contacts. As previously mentioned with respect to Figs. 1 and 2, the code segments of the segmented ring 25 of the distributor I9 are connected by eighteen conductors 58 to the left-hand windings of eighteen magnets 59. The opposite connection to the left-hand winding of each of the magnets 59 is by a common conductor, 89 to one of the contacts comprising the contact pair indicated generally b the numeral 88. The opposite contact of the contact pair indicated generally by the numeral 88 is connected by means of a common conductor 90 to ground 9I. It is to be noted that a similar connection of the lefthand winding of each of the magnets 62, 64, 57, and 69 exists by means of conductors 94 to 91, inclusive, to one contact of each of the remaining four contact pairs 88, respectively. As was the case with respect to the first contact pair described, the second contact of each of the other four contact pairs are connected by means of the common conductor 99 to ground 9i.

A common conductor 56 was previously described as completing a circuit from the segments 54 of the segmented rings 25 of the distributors I9 to 23, inclusive, to the shaft i4, and thus to the arm 15. A conductor 92 branches off from the common conductor 56 and completes a circuit therefrom through the winding of a slow-torelease relay 93 to ground. The utility of the relay 93 will be described fully hereinafter.

Also securely fastened to the shaft M is a ratchet 99, as may be seen by referring to Figs. 1 and 6. Associated operatively with the ratchet 99 is a pawl I00, which is pivotally connected at IIlI to a lever I02 which forms the armature of a magnet I113. The armature lever I02 is pivoted at I05, and by means of a spring I96 is normally urged in a counterclockwise direction away from the magnet I93. A spring I! is also provided which is secured to the pawl I09 and which normally urges the pawl in a clockwise direction about its pivot point IilI. It is to be noted that the ratchet 99 is provided with five teeth thereon, thus providing a five step movement for the shaft 14. As previously mentioned, both the contact arms 75 and 86 are contemplated as moving to five positions with respect to the contact points 16 and the contact pairs B8,-respectively. It may,

be seen that the ratchet 99 will cause the shaft to be positioned in each of the five positions just mentioned. Further, it is to be noted that once the shaft i4 is set in one of its positions it will remain there until such time as the magnet I93 operates to cause the pawl I00 to change the position of the ratchet 99 through engagement with one of the teeth thereof.

As just mentioned, the positioning of the shaft M is under the control of the magnet I93. The grounded Winding of the magnet I93 is connected by means of a conductor I99 to an armature I II) associated with the slow-to-release relay 93, previously mentioned. A grounded battery I II is provided, so that at such time as the slow-torelease relay 93 is in a de-energized condition and the armature Ill] not attracted thereto, an electrical circuit may be traced from the grounded battery III, through the armature IIU, over the conductor I99 and through the winding of the magnet I03 to ground. Thus, at such time as the slow-to-release relay 93 is in a de-energized conditicn, the magnet I93 will be energized.

A contact pair I I3 is associated with and under the control of the ratchet 99, so that at such time as the ratchet is turned, under the action of the associated pawl I00, and one of the teeth of the ratchet is moved accordingly, the tooth will cause the contact pair H3 to be closed. At such time an electrical circuit will be established which may be traced from a grounded battery H4, over a conductor H5, through the closed contact pair H3, over a conductor H6, and through the winding of a clutch release magnet I I1 (Figs. 1 and 3) to ground. It is to be noted that the contact pair H3 is normally open and will be only closed at such time as the ratchet 99 is moved in a counterclockwise direction under the control of the associated pawl I00.

By further considering Fig. 1 it may be noted that each of the first magnets 59, 62, 64, 61 and 69, that is, the first vertical row of magnets at the left, looking at Fig. 1, has a common armature i I9 associated therewith. That is, the common armature I I9 will be responsive to the energization of any of the magnets 59, 62, 64, 61 or 59, associated with the first code segment of the segmented rings of the distributors indicated generally by the numerals I9, 29, 2I, v 22, and 23, respectively. Referring to Figs. 3 and 4, it may be seen that the armature I I 9 is pivotally mounted about a shaft I29 and is formed with an upwardly extending arm I2! at one end thereof and an upwardly and rightwardly extending arm I22 at the other end thereof. A spring I23 is provided for each of the armatures I I9, one of which is associated as a common armature with each vertical row of five magnets (Figs. 1 and 2), which normally tends to pivot the armature I I9 in such a manner as to move away from the associated magnets.

Again referring to Fig. 3, it may be seen that a plurality of code bars I25 are provided, one of which is associated with each of the armatures I I9. Thus, it may be seen that eighteen code bars I25 are included, one of which is under the control of each of the armatures II9 which, as previously mentioned, in turn is under the control of a particular group of magnets associated with the segmented rings of the distributors. The code bars I25 are aligned and held in relative position against lateral movement by means of a pair of combs I25 which are fastened to the base of the apparatus. While the code bars I25 are held against lateral movement, they are so positioned as to be movable in the direction of the length of the bar. However, each bar I25 is normally held in its rearward position, referring to Fig. 3, by means of the arm I22 of the associated armature II9 which acts as a blocking member with respect to that code bar. Each of the code bars I25 has a pin I21 extending therefrom to which v is fastened a spring I28, the oppositeend of which is fastened to a common member I29 which is securely fastened to the base of the apparatus by means of brackets I35 (Fig. Thus, the springs I28 normally urge the code bars I25 in a forward position (to the left in Fig. 5), but are prevented from doing so because of the arm I22 of the armatures II9 being in blocking engagement with respect to the code bars.

By referring to Fig. 5, it may be seen that the code bars I25 are each provided with a shoulder I3I on the under side thereof, which, when the blocking arm I22 of. the armature H9 is out of engagement with the front of the code bar I25 and the code bar I25 is urged forwardly by means of the spring I28, engages the forward comb I26 and limits the forward movement of the code bar I25. It may also be seen that the code bars I25 are provided with a plurality of -code notches I32 in the upper edge thereof. Such code notches are well known in the art and are utilized for .purposes which are also well known. Still referring to Fig. 5, it may be seen that each of the code bars I25 is provided with a downwardly extending lug I33 at the rightward extremity thereof, which would be toward the right, as viewed in Fig. 5, or at the top of the drawings in referring to Fig. 3. The lug I33 acts in conjunction with an apex I34 extending the entire length of a cam shaft I35 as a reset mechanism for the code bars I25. Referring to Fig. 3, it may be seen that the cam shaft I35, which is mounted in a pair of bearing brackets I37, has a gear I38 at the rightward extremity thereof which meshes with a gear I39 securely fastened to a shaft I40 which is securely mounted in a pair of bearing brackets I4I.

overlying the code bars I25 are a plurality of operating levers I43 which are pivotally mounted at their left ends, as viewed in Figs. 3 and 4, about a shaft I44 which is securely fastened to the base of the apparatus by means of a pair of brackets I45, one at either end thereof. The operating levers E43 are constrained from lateral movement by means of a comb I46 which is positioned toward their rightward extremity, as viewed in Fig. 3, and which is securely fastened in position by means of a pair of brackets I41 extending from and fastened to the base of the apparatus.

In operation, in the event that one or more of the eighteen code bars I25 are so positioned that their coded notches I32 are in particular alignment, a selected operating lever I43 will be allowed to move in a clockwise direction about shaft I44, as viewed in Fig. 4, assuming that other conditions are existent to allow such an operation. By referring to Fig. 4, it may be seen that a cam I49 underlies the operating levers I43 in such a manner that when the apex of the cam is presented to the underside of the operating levers I43, they will not be able to pivot in a clockwise direction. However, at such time as the low section of the cam I45 is presented to the underside of the operating levers I43, the operating levers will be allowed to move in a clockwise direction, assuming that one of them has been selected by a proper alignment of the code notches I32 in the various code bars I25 by means of their individual springs I48. By referring to Fig. 3, it may be seen that the cam I49 is securely fastened to the shaft Hill, previously mentioned, and underlies all of the operating levers I43,

Referring to Fig. 4, it may be seen that each of the operating levers I43 is formed, toward the aseaess rightward extremity thereof, with a downwardly extend-ing lug I 50. Adjacent or underlying each of the lugs 150 is a key lever I5I formin part of a telegraph recording apparatus indicated generally by the numeral I52. Upon the operation of any one of the operating levers I43, that is, a pivotal clockwise movement which was previously described as being ossible, the downwardly extending 111g I50 thereof will engage its associated key lever I51 of the telegraph recording apparatus I52, thereby causing a character to be recorded.

By further reference to Fig. 3 it may be seen that at the forward end of the shaft I40 is part of 'awclutch assembly which comprises a driven face I54 and a spring I55 associated therewith and tending to urge the driven face I54 into engagement. with the clutch driving face I55 which is securely fastened to the shaft 43, previously described. It is to be remembered that the shaft 43 was constantly driven by means of the motor 49. The present clutch connection is dependent on the control of a controlling arm I51 which forms a part of an armature I58 which is under the control of the magnet I", previously mentioned. The armature I58 is under the control of a spring (not shown) and is normally posi-v tioned with its lug I51 in such a position with respect to the driven face I54 of the clutch assembly that the face is held in a blocked position and not allowed to come in engagement with the driven face I56 under the control of the associated spring I55. Thus, at such time as the clutch release magnet II? is energized and the associated armature I58 attracted thereto, the arresting arm I51 will be removed from its blocking position with. respect to the driven face I54 and the spring I55 will urge the two clutch faces together, thereby imparting rotation to shaft I48 from the constantly rotating shaft 43.

Prior to describing the operation of the apparatus it should be noted that the shaft I4 will be so positioned that its arms 75 and will be in engagement with the No. 1 contact point I6 and the No. 1 contact pair 33, respectively. Likewise, at this time the brush arm SI of the distributors generally indicated by the numerals l9 to 23, inclusive, will 'be in an arrested position and will not be rotating, inasmuch as the magnets 53 associated therewith will be in a deenergized condition. Further, inasmuch as the slow-to-release relay 93 will be in a de-enerized condition at this time its associated armature I I0 will be in such a position as to establish an electrical circuit from grounded battery II I to the magnet I03, thereby causing the magnet to be in its energized condition. At this time the ratchet 99 will be in a stationary position, thereby resulting in the contact pair H3 being open and the clutch release magnet II'I being in a tie-energized condition. Thus, referring to Fig. 3, no rotation will be imparted at this time to the shaft I48 through the clutch assembly from the shaft 43 inasmuch as the driven face I515 will be held out of engagement from the driving face I58 by means of the arm I5! integral with the armature I53. As a result of this, referring to Fig. 4, the cam I49 will hold all of the operating levers I43 in their upward position, not allowing any pressure on any of the key levers I5l. Referring to Fig. 5, it may be seen that the cam I35 will be positioned as shown in full lines out of engagement with the lugs I33 of the code bars I25. However, the code bars I25 will not be allowed to move to their maxiassaess mum forward position, inasmuch as the lugs I22 of the armatures II9 will block such movement.

This results because at this time none of the magnets 59, 62, 55, 61, or 59 will be in an energized condition. I

The operation of the apparatus is as follows:

As previously mentioned, the Morse code designation consists of dots, dashes and zero electrical conditions. These signals have relative time duration with respect to each other; that is, assuming a dot to be a basic time interval, a dash lasts for a time interval equal to that of three dots. tween successive signals is equal in time to that of one dot, whereas the time duration of the zero condition between successive characters is equal to three dots, and the time duration of the zero condition between words is equal to iflvc dots.

Upon operation of the apparatus, Morse code signals will be received by the radio receiver II, and after passing therethrough will be impressed as dots, dashes, or zero conditions on the common conductor I2. The initial signal which is always either a dot or dash, will pass through the conductor I2 and the conductors I3 to IT, inclusive, to the solid rings 25 of the distributors I8 to 23, inclusive, respectively. As the brush arms 3! of all of these distributors are in an arrested position with the pair of brushes 34 bridging the solid rings 26 with the segment 54 of the segmented rings 25, the above-mentioned signal will pass through the brush pairs 34, through the segment 54 of the segmented rings 25, and through the conductor 55 associated with each of the distributors to the common conductor 56. The circuit may be further traced through the common conductor 55 to the shaft I i, and over the arm '55 associated therewith. Inasmuch as the arm 75 at this time is in engagement with the No. 1 contact point IS, the circuit may be further traced from the No. 1 contact point I5 over the conductor 85! to the release magnet 53 associated with the distributor designated generally by the numeral I9. It is to be noted that the release magnets 53 associated with the distributors 2a to 23, inclusive, will not be energized at this time because the arm I5 is in engagement with the No. 1 contact point I6 and not with any of the other contact points two to five, inclusive. The remaining release magnets 53 associated with the distributors 20 to 23, inclusive, will be individually energized at such time as the arm i5 is in engagement with one of the other contact points I5, thus a1- lowing circuits to be traced through the conductors BI to 85, inclusive. Upon the energization of the magnet 53 its armature 5i will be attracted thereto, against the tension of the spring 52 (Fig. 3), thereby releasing the clutch assembly and allowing rotation to be imparted to theshaft 32. Upon rotation of the shaft 32 the brush arm 3! secured at the upper end thereof will also rotate, the direction of rotation being in a clockwise direction, as viewed in Figs. 1 and 2.

The rotation of the brush arm SI is so timed that it will pass over successive segments in timed relation to the reception of dots. That is, the brush arm 35 will pass over one of the segments as of the segmented ring 25 during the reception of a dot, whereas it will pass over three successive segments during the reception of a dash. Likewise, the brush arm 3I will pass over a single segment Bil during a zero condition be- The zero condition which exists be- A thereby resulting in the magnet I53 becoming ole-energized. As a result of the de-energization of the magnet I03, its associated armature I52 will be allowed to pivot in a counterclockwise direction, about pivot point I05, under the ten sion of its associated spring I95, resulting in the pawl I09 moving toward the left (Fig. 1) and past the next tooth on the ratchet wheel 99, in such a manner as to be in readiness the next time the magnet I53 is energized to engage the tooth and thereby rotate the pawl 99 and the shaft I4 in a counterclockwise direction a distance equal to the distance between adjacent teeth on the ratchet.

In the event that a single dot is received by the radio receiver I I and passed to the distributor I9, nothing further will happen with respect to the circuits shown in Fig. 1 and Fig. 2 at this time, but instead, the character E which is designated in Morse code by a single dot, will be recorded in a manner which will be described hereinafter.

It is, of course, understood that each distributor I9 to 23, inclusive, serves to analyze a complete Morse character code signal, and after a Morse character signal has been analyzed by one distributor, for example I 9, the analysis of the next succeeding received character signal is performed by the next distributor 29, and so on.

The distributor which will be next effective to analyze the received Morse character code signal is determined by the sequence device shown in Fig. 6, which has no normal position, and therefore allows operation of the apparatus to be initiated from any position of the sequence device. Likewise, as a result of this, operation may be initiated with any of the distributors I9 to 23,

conductor I3 leading to the distributor I9, and

therefore also on the conductors 55 and 92. The slow-to-release relay 93, which was previously described as becoming energized upon the transmission of the dot to the conductor I2, is so designed as to release in the event that a zero condition exists on the conductor 92, and therefore through the winding of the relay, -for a time interval equal in duration to that of anything longer than a two-dot interval. Therefore, after the interval between characters of the three-dot in duration zero condition has existed for any time longer than a two-dot interval, the slowto-release relay 93 will be de-energized, allowing its armature I It to fall back to its unattracted normal position out of engagement with the relay; Asa result of the falling off of the armature l I10, an electrical circuit will be established from the grounded battery- H I, through the armature H0, through the conductor I 09, and through the winding of the magnet H13 to ground, causing the magnet to be energized.

The result of the energization of the magnet H13 is to cause its associated armature M2 to be attracted thereto, pivoting in a clockwise direction about its pivot point H15 against theurging of its spring me, which in turncauses the pawl Hill-to be moved toward the right, as viewed in Fig. 1'. Any such movement to the pawl Hill, which previously had moved toward the left, will cause engagement with the associated tooth of the ratchet wheel 99 resulting inthe wheel 98 being rotated in a counterclockwise direction a distance equal to the distance between adjacent teeth thereon. Any counterclockwise movement of the ratchet 99 will cause the shaft 14; to which it is: securely fastened, to likewise rotatein a counterclockwise direction, thereby causing the arms 15 and 86, which are both securely fastened thereto, to also move in a counterclockwise direction' one step. The result of a counterclockwise movement of the arm 75. is to removeit: from engagement. with: the No. 1 contact point 16 and instead connect it to the No. 2 contact. point 16. The. result of any counterclockwise: movement. to the arm: as is to remove it from its bridging engagement with the No. 1 contact pair indicated generally by the; numeral 86, and position it to bridge the No. 2' contact pair indicated generally by-the numeral. 88. I

A counterclockwise movement to the. ratchet wheel 9.9v also. causes one tooth thereof to act upon the contact pair lfl3 to cam the lowercontact spring thereof into engagement with the upper contact spring. As: a result of such. movement, the contact pair H3 is closed, and an electrical circuit is established which may be traced from. the grounded battery H4, over the con ductor H5; through the closed contact pair H3, over the conductor H5 and through the winding of the clutch release magnet H1: to ground. As a result of the establishment of this: electrical circuit the clutch release magnet H1: will he energized'conditioning a recording operaliom as will be described hereinafter;

As mentioned above, the arm 1.5: no longer is in engagement with the No. I contact point 1.6 but instead has been moved to engagement with the No. 2 contact point 16; As a: resultof this movement of the contact arm the electrical circuit which previously was established, over the conductor 80 to the magnet associated with the distributor IE will be broken and therefore; the magnet 53 will no longer be energized to attract its associated armature SI and allow the brush arm 3| to start into rotation, as previously described, until such time as the arm-'15. is once again incontact with the No; 1 contactpoint I5. Instead, due to the arm 15 now being in engagementwith the No. 2 contact point 16', an electrical circuit may be traced from the common conductor l2, through the conductor I14 leading to the distributor indicated generally by the numeral 20, through the solid ring 26, through the pair of brushes 34, and through the segment of the segmented ring 25 to the short conductor 55 associated.- with that distributor. Thereafter, the circuit may further be traced through the common conductor 55120 the shaft 14, through the arm 15' to the No. 2: contact point 16' and over the conductor 8-! to the clutch release magnet 53 associated with the distributor identified by the numeral 20. Thereafter, the next electrical condition on the common conductor l2, caused by the receipt and passage through the radio receiver II: of a succeeding dot or dash, will now cause the magnet 53 associated with the distributor 29 to be energized, thereby allowing the brush arm 31 associated with that distributor to start into operation.

Also, as previously mentioned, the arm. 85 will no longer be in bridging engagement with the No. 1 contact pair 88 but instead willhavemoved in a counterclockwise: direction one step to bridge the No. 2 contact pair indicated by the numeral 88; The result ofsuch movement of the arm 86 is to break the circuit which previously extended from the. left-hand winding or the magnets 59, throughthe. conductor 89, through the contact pair 88 and through, the common conductor 99 to ground: 8L, Thus, it may be seen that even though an electrical condition occurs on the conductor I3- and is bridged by the. pair of brushes 34 through the segmented ring 25, through variousofv the conductors 58 to any of the magnets 58; the magnets will not become energized because ground will no; longer be extended to the common conductor 89 to complete the electrical circuit. Instead, asv a result of the arm 86 moving to the- No. 2 contact pair 88, an electrical circuit may be traced from the left-hand winding of the magnets 62, through the conductor 94, through the bridging arm 86., through the No. 2 contact pair 88, and over the common conductor 90 to ground 9]. Thus, in the event. that an electrical condition exists on the conductor 12 hereinafter it will be relayed through the conductor [4 leading to the distributor 20, through the pair of. brushes 34 to the segments of the segmented ring 25,, and over the conductors Bl to: the magnets 61 connected thereto, thus allowing, those magnets tobecome energized.

It might be mentioned that after; the shaft 14 has rotated one step in a counterclockwise direction, causing its associated arms and 8B= to move from the associated No. 1 contact points to the No. z'contact points, the brusharm 3i associated with the; distributor IE will continue to rotate until such time as it. has made a complete revolution, at, which time. it will again be stopped on. the segment '54 by means oi the armature 5.! associated therewith being in blocking. engagement with respect to the clutch associated with that distributor. Likewise, as the brush pair 34 is rotating over the various succeeding segments 68 of the segmented ring 25, nothing will, happen in the magnets 59 associated therewith because of the fact, as previously mentioned, that ground Si is no longer available to complete the electrical circuit therefor. Thus, it may be seen that only one character has been received by the distributor I-S after which it has been, for all. practical purposes, disconnected from the signal source and the No. 2 distributor 20' conditioned for operation in its place.

Let us now assume that a zero condition, indicative of a space between characters, has existedon the conductor l2 for a time interval equal inlength tothat of three dots and that thereafter a succeedmg signal is being received by the radio receiver l i and passed therethrough to the conductor 12, which is of some combination other than av single dot condition; that is, which is a point it is well to reiterate that the character E was previously received by the distributor i9, and that-the next character comprising a dot and dash (indicative of the character A) will be received upon the distributor 20.

Upon the receipt of the dot by the conductor 12 an electrical circuit may be traced from the conductor 52, through the conductor l4, through the solid ring 26 of the distributor 20, through the pair of brushes 34 On the arm 3|, through the segment 54 of the distributor 29, through the short conductor 55, through the common conconductor 56 to the shaft 14, through the arm 15 associated therewith, through the No. 2 contact point 16, through the conductor 8|, through the magnet 53 associated with the distributor indicated generally by the numeral 20 to ground. The result of the establishment of such circuit will cause the magnet 53 to be energized, attracting its armature i thereto, which results, as previously described, in the release of a clutch assembly and the allowance thereafter of the brush arm 35 to rotate This time it is to be understood the brush arm 3| is the one associated with the distributor 20.

A second electrical circuit is also established which extends from the common conductor 56, through the conductor 92, and through the winding of the slow-to-release relay 93 to ground. As a result of the establishment of such circuit, the slow-to-release relay 93 is energized, thereby attracting its armature H0 thereto, resulting in grounded battery ill no longer being extended through the armature lit and over the conductor I89 to the winding of the magnet I03, but instead disconnecting battery from the magnet I03 thereby causing it to de-energize. As a result the ratchet wheel 99 to he stepped a distance equal to that between adjacent teeth, in a counterclockwise direction. This positioning of the pawl mil toward the left has previously been described.

As we have assumed the present incoming signal, for descriptive purposes, to comprise a dot followed by a dash after the dot has been received causing the brush arm 3! ofthe distributor 20 to be started into clockwise rotation, a zero condition will exist on the conductor [2 for a time interval equal in duration to that of a dot. During this time, the brush arm 3! will be rotating over the first segment 60 of the segmented ring 25, which is to the left of the segment 54, but, because a zero condition exists on the common conductor [2 and the conductor l4 leading to the distributor 2!], a zero condition will likewise exist through the conductor 6! associated with the first segment 80 and so through the magnet 62 connected thereto. Thus, the first magnet 62 will not be energized at this time. Immediately following the zero condition on the conductor l2 an electrical condition will exist for a time interval equal to that of three dots, inasmuch as we have assumed that a dash followed the dot.

1 The brush arm 3 I will be rotating over the second segment 60 of the distributor 23 during the time that the first third of the dash, that is, the time interval equal in length to one dot, is being received over the conductor it. Therefore, an electricalcircuit is established through the common conductor i2, through the conductor i l to the solid ring 26 of the distributor 29, through the pair of brushes 34 of the brush arm 3!, through the second segment 69 of the segmented ring 25, through the conductor it! connected thereto, through the left-hand winding of the magnet 62 connected to that conductor 8 through the com mon conductor M to the one contact of the No. 2 contact pair indicated by the numeral 88, through the bridging arm 86, through the second contact associated with the No. 2 cont-act pair 88, and through the common conductor to to ground 9!. As a result of the establishment of this circuit, the magnet 62 associated with the second segment 60 is energized, causing its associated armature 12 to be attracted thereto. Upon the attraction of the armature 72, an electrical circuit is established which may be traced from grounded battery H35 associated with the distributor indicated by the numeral 2!, through a conductor I62 to the solid inner ring 29 of the distributor 2i, through the bridging pair of brushes 33 to the substantially solid ring 27, over the conductor 14 leading therefrom, over the conductor 13 branching from the conductor I 3, through the armature l2, and through the winding of the rela 62 to ground. Inasmuch as the brush arm 3! associated with the distributor 2! is in its stationary position, due to the de-energization of the associated magnet 53, the electrical circuit established and just described will remain established until such time as that brush arm 3! is allowed to rotate, in a manner which will be hereinafter described, Thus, it may be seen that looking battery is supplied for the magnet 62, which has just been described as being energized, and which is representative of the first third of the dash being-received through the common conductor 12, the conductor I l, and to the distributor 20. This is necessary because the brush arm 3! will immediately thereafter pass from the second segment 30 of the segmented ring 25 of the distributor 20 and current will no longer be extended through the associated conductor 6! and through the left-hand winding of the magnet 62, described above. Upon the energization of the magnet 62 its associated armature E9 is attracted thereto, which attracted position is utilized in the translating and recording operations.

The brush arm 3i will successively pass over the third and fourth segments as of the segmented ring 25 of distributor 20, and during such time the third and fourth magnets 62 will be energized in a manner similar to that just described, and held in such energized position by means of the locking circuit from the grounded battery it! associated with the distributor 2!, as also previously described.

After the receipt of the dash, which was the end of the code designation for the character which we assumed to comprise a dot and dash, a zero condition will exist on the conductor it. for a time interval equal in length to that of three dots. As previousl described, the result of such a zero condition will be to cause the slowto-release relay 93 to be de-energized, thereby once again causing the magnet its to be energized and the ratchet wheel 99 to be stepped a distance equal to that between adjacent teeth by means of the pawl Hi6. Upon such an operation the shaft 14 will be. once again rotated one step in a counterclockwise direction, causing the arm secured thereto, to be stepped from No. 2 contact pointv 16 to Not 3 contact point 16. The result of such movement will be to transfer the electrical circuit from the magnet 53 associated with the distributor to a circuit through conductor 82 to the magnet 53 associated with the distributor 2t. Likewise, as a result of the counterclockwise movement of shaft I4, the bridging arm 85' will be moved from engagement with the No. 2 contact pair- 88 to the No, 3 contact pair 88, resulting in the ground 91 no longer being extended to the magnets 62 associated with the distributor 20, but instead extending a circuit through the No. 3' contact pair 88 and over the conductor 95 to the magnets 84 associated with the distributor 2i. Thereafter the magnet 62 which had previously been energized will be held in such condition through they associated armature 1:2 and the locking circuit from the battery I61 associated with the distributor 2i. As the brush arm 3i traverses the remaining segments 80' of the segmented ring of the distributor 20, no more of the magnets 62 will become energized because ground SI is no longer extended thereto.

As previously described, at such time as the ratchet 99 is moved a, distance between adjacent teethin a counterclockwise direction, the contact pair H3 will once again be closed, resulting in theestablishment of the electrical circuit from the grounded battery H4 to the grounded'winding of the magnet I ll, thereby causing the magnet to be, energized and attract a clutch release armature, in a manner which will be hereinafter described.

As just described, the distributor 2! is now in condition to be operated through the energization or its associated release magnet 53 upon the next electrical condition on the conductor [2 and the conductor l5. from the radio receiver H. At this time its associated brush arm 3! will be allowed to rotate, and in conjunction with the incoming signals, as it sweeps over various of the segments 60' will cause, through the conductors 53., certain of the. magnets 64 to be energized. It maybe seen that in this case the locking circuit which will be applied for the magnets fi l will be completed from the grounded battery IE3 associated with the distributor generally indicated by the numeral 22. Thus, it may be seen that in each case, as a certain distributor is allowed to operate and its associated brush arm rotate to cause the magnets associated with its segmented ring 25 to be energized or not energized in accordance with the incoming code signals, locking battery is applied from a local circuit established from the succeeding distributor.

In the event that .it had been assumed that the incoming code signal had been a single dash instead of a dot and dash as just described, it maybe seen that the result of such would be that the first time interval equal in length to that of. a dot would have been utilized to cause the associated magnet 53- to be energized, and thereafter as: the. associated brush arm 3! traversed and bridged the first two segments 68 in succession, during the succeeding two time intervals of the dash. constituting an interval equal in length to that of two dots, the first two magnets 62 would have become energized.

By referring to any of the distributors it may be. seen that it comprises, on the segmented ring 215, twenty segments, eighteen of which are connected: with conductors to an associated eighteen magnets, while the segment. 54, as previously described, is: connected to the common conductor '55.

The twentieth segment 57 is blank and not electrically connected at all. Thus, it may be seen that the maximum code signal which may be received may comprise five dashes. That is, inasmuch as the brush arm 3| rotates over one segment during an electrical condition equal in duration to one dot, and as three dot intervals equal a dash, it may be seen that an electrical condition exists equal in duration to fifteen dots. Interspaced'between successive dashes is a zero electrical condition of a duration equal to the length of one dot, during which time the. brush arm 31 will also move a distance of one segment and, as we have five dashes, there will be four such zero intervals, Thus, it. may be seen, as the first dot time interval is taken by the. segment 5 to control the release magnet 53, that thesucceeding eighteen segments will be required for the remaining fourteen dot intervals of electrical condition and the four intervals of zero electrical condition. After this the brush arm 3! will be held in the lowermost position in arrested condition. Such will not affect the operation of the slowto-release relay 93. Likewise, the brush arm 3i of the distributor !9 will not be started up for the succeeding character as the slow-to-release relay 93 will operate resulting in the shaft 14 being stepped prior to the next incoming signal or electrical condition. This, as previously described, transfers supervision from the release magnet 53 associated with the distributor I9 to the release magnet 53 associated with the distributor 20, through the operation of the shaft It and the arm 15.

In the following description of the operation of the code bars, operating levers, and printing of the character, the prior description will be reversed to the extent that the recording of the character designated by the dot and dash, described secondly, shall now be described initially, and the recording of the letter E designated by a dot, shall be described thereafter.

As previously described with respect to the signal comprising the dot and dash, the reception of the dot by the distributor 2t resulted in the release magnet 53 associated therewith being energized, thus allowing the brush arm 3 I to start into rotation. Thereafter, as the brush arm 3| traversed the first segment'to none of the associated magnets 62 were energized, as the zero condition representative of the space between signals was transmitted at this time. The brush arm it then rotated over the second, third, and fourth segments 68 and electrical circuits were established for the energization of the second, third, and fourth magnets 52. Upon these magnets becoming energized a locking circuit was immediately established to hold them in that con dition, as previously described. As a result of the energization of the three magnets 62 the associated armatures H9 will be rotated in a counterclockwise direction, as viewed in Fig. 4, against the urging of their associated springs I23, thereby removing the arm l22 from blocking engagement with the associated code bars 125. By referrin to Fig. 5 it may be seen that as soon as a blocking arm i22 is moved from in front ofthe code bar l 25, the code bar will be allowed to move toward the left, under the urging of its associated spring 28, for a limited distance until the shoulder i'3l formed on the underside of the code bar 225 engages the comb I26, thereby'precluding further movement of the code bar. The amount of movement may be seen by referring to the downwardly extending lug I33 at the rightward extremity of the code bar I25, the dotted line position being the position of maximum movement. As previously mentioned, a magnet lock-up circuit prevents the magnet 52 from being de-energized at this time. However, even though the magnets were to become de-energized they would not prevent the operation of the code bars I25, inasmuch as the code bars would have moved past the end of the stop arm I22, thereby preventing the stop arm from coming back in blocking position at this time.

As previously mentioned with respect to Fig. 1, after a space between characters exists, the slowto-release relay 93 will become de -energized after a zero condition exists on the conductor I2 equal in duration to anything more than a two-dot interval. Upon the de-energization of the slow-torelease relay 93 the armature I I3 associated therewith will no longer be attracted and in falling away closes an electrical contact, causing the energization of the magnet I03 and the attraction of its armature I32 thereto and the operation of the pawl III!) to step the ratchetefi a distance equal to the distance between adjacent teeth, thereby causing the shaft I4 to be rotated in a counterclockwise direction. As a result of any movement of the shaft 74 of that extent, the associated electrical contact pair H3 will be closed, causing the establishment of a circuit for the energization of the magnet III. Referring now to Fig. 3, it may be seen that upon the energization of the magnet III its armature I58 will be attracted thereto resulting in the stop lug I 5? integral therewith being removed from blocking position with respect to the clutch assembly, thereby allowing the driven face I 54 of the clutch assembly to be urged by the spring I55 into engagement with the driving face I55 of the clutch assembly. Upon such an operation of the clutch, motion will be transmitted from the constantly rotating shaft 43 to the shaft I49 associated with the driven face I54 of the clutch, causing it to rotate and likewise causi rotation of the cam I 49 securely fastened thereto.

Referring again to Fig. 5, it may be seen that by a leftward movementof the code bars I25 there will be a corresponding movement of the code notches I32 formed therein, and after the complete signal has been received, representative of one character, certain of the bars I25 will have been moved allowing a transverse alignment of one set of notches I32 in the entire eighteen code bars. As a result of such alignmentone of the operating levers I43 would, if the cam I49 were not preventing it from doing 50, move downward into the aligned notches I32 under the urging of its associated spring I48.

As described above, upon the closure of the contact pair II 3 the shaft I43 and the cam I49 associated therewith will be allowed to rotate in a clockwise direction, as viewed in Fig. 4, resulting in the apex of the cam no longer being presented to the underside of the eighteen operating levers I43 but instead a low portion of the cam I49 will be presented thereto. As soon as the low portion of cam I 45 is presented to the underthat particular code combination to be recorded by the recording apparatus I52.

It is to be remembered that the cam shaft I35 was driven through the gears I38 and I39 by the rotation of the shaft I40. By referring to Fig. 5, it may be seen that the cam shaft I35 is formed with an apex I34 thereon, and when operating, rotates in a clockwise direction. As the cam shaft I35 nears the end of rotation thereof, its apex or high section I34 will engage the downwardly extending lugs I33 of the selected code bars I25, thereby returning them to their rightward normal position, Fig. 5, against the urging of the associated springs I28. The timing of the operation of the cam shaft I35, that is, its speed of operation with respect to the shaft I40, is such that the cam I49 will have presented its low portion to the underside of'the operating levers I43 thereby allowing the selected operating lever to move downward, causing its associated character to be recorded, before such time as the selected code bars I25 are returned under the urging of the cam shaft I 35 and especially the apex I 34 thereof. Likewise, the timing of the cam shaft I35 must be such that the selected magnets 62 are no longer held in an energized condition. That is, their locking circuits associated therewith'have been broken, allowing the magnets to be de-energized so that blocking lugs I 22 may move back to blocking position with respect to the code bars I25 when the latter are moved toward the right, as viewed in Fig. 5. The operation of the breaking of the locking circuits will be described hereinafter. The locking circuit for the magnets 52 connected to the segments 60 of the distributor 20 has previously been described as originating from grounded battery I BI associated with the distributor 2|, through the conductor I62, through the solid ring 29 thereon, through the brush pair 33, through the substantially solid ring 2I, through the conductors I4 and I3, through the now attracted armature I2, and through the grounded winding of the magnets. Likewise, a description has also been given relative to the changing of the supervision of the magnets; that is, upon the movement of shaft I4 due to the de-ener-gization of the slow-to-release relay 93 upon a zero condition signifying a space between characters, the arm I5 fast to the shaft 14 is moved one step, thereby connecting the succeeding release magnet 53 associated with the succeeding distributor, thereby allowing the brush arm 3| of that distributor to go into operation.

' Thus, after the character designated by the dot and dash signal has been completely received through the distributor 20 the space between characters is transmitted over the conductor I2, and the distributor 2| is conditioned for operation through its release relay 53. At this time its brush arm 3| will be released for rotation. Likewise, as described above, the selection of the operating lever due to an alignment of the notches I32 of the code bars I25 has been allowed, thereby instituting the recording operation. After the brush arm 3| of the distributor 2| rotates in a clockwise direction and passes over the latter part of the first code segment 5|] connected to the magnet 64 and the first part of the second code seement 60, the brushes 33 bridge the insulated segment 28 of the substantially solid ring 21 with the solid ring 29. IAS the brush arm passes thereover, grounded battery |6| connected to the solid ring 29 by conductor I52 no longer will be bridged electrically by means of the brush pair 33 to the substantially solid ring 21 and over the conductor 1.4 because, as; mentioned, the *smalL segment 218 is insulated from the ring 21. Therefore, a circuit is no; longer completed; over the conductors: [4 I3, through the armature '12 associated. with'themagnet: 62, and through the right-hand winding. of the. magnetv to ground, but. instead: is blOkEIIibY means of the insulated segment 28, thereby causing the. de-energization ofthe magnet. 62.. The result of this is thebreaking of themagnet lockup circuit, thereby-allowing the magnets-to bedsenergized, and their associated armatures. Hi9" to be,- pivoted in a clockwise direction, under the urging of the associated. springs 123. The timing of the release of the, lock-up circuit and; therefore theade-energization of the magnet 62 issuchthat it. occurs immediately before: or substantially. sitmultaneously. with the operation ot'rthecam shaft [35. causingits apex. I 34. to engagethe downwardly extending-dug I33 of the. selected code; bars; I25. Thus, as the. code bars aremowedtoward the-right, Fig; 5, the clockwise rotation oi the, armatures H9, Fig, 4., allows thev blocking. arm I-22: thereof to. b positioned in front of, the. code; bars. I25 thereby holding; them in. their unselected position in readiness for a further selectiom.

It. is to benoted that the insulated segment 28 of they substantially solid ring 21 is so positioned with respect to the segmentof thesegmented ring 25: that upon operation of the subsequent distributor and the rotation of its associated, brush arm thereover, due to the timing, asufiicient in.- terval of time elapses so that the recording may occur and the operating, lever I 43 and the code bars I25 returned to their initial. or normalposition prior to the operation of thesubsequent distributor and its associated magnet to set the following character.

Referring back to the description of theoperation, Figs. 1 and 2. it is to be noted that the initial description of the operation of the apparatus was upon thereceipt of a single dot signifying the letter E. As previously mentioned, upon the receipt of this signal; the brush arm 3| of the distributor [9 was allowed to rotate but.n.0ne of the magnets 59 associated with the segments 60 of, the segmented ring 25 werezcaused to baenergized. Referring to Figs. 3, 4, and 5, there is an operating lever I43 provided for the'operation of an associated key lever I5I signifying thaletter E which will be selected under a normal positioning of: the apparatus. That is, thecode bars I25 are so arranged that when they are in their normal or locked up positio-nas disclosed in Fig; 5, there will be an alignment of notches I32 whereby the operating lever M3 signifying the character Ei may be selected; As also previously ex plained, after the single dot has been received: and

upon, a zero condition for an interval equal in time to that of\more than two dots, signifying; a space between characters, the slow-to-release-relay93 will be de-energized, thereby resultingin the shaft 7-4 and its associated arm being moved a distance of one step in a counterclockwise directi'on. The result of this is the transferrence of supervision from the release magnet 53 associated with: the. distributor I9 to the release magnet 53: associated with the distributor Simultaneously therewith is the closing of the contact N3, the energization of the clutch release-magnet H-T and. referring to Fig. 3, the operation of the shaft I 40. As a result of'the rotation of theshaft M0, the cam- I49 thereon, Fig. 4, will likewise be moved; thereby no longer presenting its apex to the underside of theoperating levers I43-but instead presenting its low' portion thereto at which timethe operating lever associated with theletter FB he allowed to move; downwardly under the control: of: its associatedspring IE8, thereby causing: its downwardly extending lugi50 to depress its associated E key lever lfil, thereby causing; the. character E to be recorded. Such provision. may be madebecause any signal will start out with the: segment 54 receiving an electricai potential, and in the event that it is a character; designated other than. by a single dot, certain of: the magnets will thereafter be energized. Such energization will prevent the operation of the "E operating lever. That is, upon energization of certain of the magnets andthe resultant attraction of the armatures I19 thereto, the re moving of the, blocking arm I22 from in front. of certain-:ofthecode, barsv I25 and thereafter the selection of. the code bars underthe urging of their associated-springs I28. will change, the alignment of the; notches I32, thereby preventing the E operating lever M3 from being operated.

As previously mentioned, upon the receipt of a single dot characterizing the character E the distributor onwhich this particular character is received will beutilized for the reception of that character only; During the reception of such character the brush arm will move over the segment 54and thereafter will move over three, succeeding segments 60 during such time as the zero conditionsignifying the space between characters is being received. Also, as previously mentioned, once the brush arm 3I- isstarted into operation itwill complete. afull revolution before it is arrested. Therefore, assuming that the letter E may be'repeated consecutively for some reason or the; other, it has been necessary to provide five separate distributors because if any less in number were used the first brush arm 3! receiving the initial letter E would not have sufficient time to; make a, complete revolution, and thereafter be; arrested for any number less than five distributors.

Also, as previously mentioned, in Morse transmission a space, that is,the intervalbetweensucceeding words; is designated by a zero condition ontheconductorequal in duration to theinterval of five dots, Nospecialprovision hasbeen made in the. present apparatus for the, operation of a space bar or. similar equipment inasmuchas it is contemplated that a recording apparatus i52 could be; utilized which would provide for a con stantlyadvancing'tape rather than an intermittently-operatedtape. Such being the case, as the tape, is: being constantly pulled through the machine, during thetirne that would elapse for the reception of a zero condition equal in duration to that of'five dots, the tape would be pulled a distance wherein a space between words would occur. Such a continuously positively operating tape may be seen by referring to U. 3. Patents Nos. 2,000,083 and 2,145,264, issued to E. F. Kleinschmidt on May 7, 1935, and January 31, 1939, respectively.

his to be further noted at this time that provision has been madefor the reception of a maximum signal of five dashes. As a result of such provision, eighteen segments 60 have been proincreasing the number of the segments 60 of the segmented distributor ring25 and correspondingly increasing the number of magnets associated therewith, provision could be made for characters comprising other signals. Of course, it would be necessary to correspondingly increase the number of code bars I25 and the number of operating levers I 43 and key levers 15!.

Although a specific embodiment of the invention has been shown and described, it will be understood that this embodiment is but illustrative and that various modifications may be made therein without departing from the scope and spirit of this invention.

What is claimed is:

1. Apparatus for the translation of code signals including a radio receiver, a plurality of distributors, means to cause each of said distributors to be successively responsive to successive characters represented by code signals received by said radio receiver, a group of magnets associated with each of said distributors and responsive to the code signals representing one character, a plurality of code bars set in accordance with the energization or non-energization of the magnets in said group, a plurality of operating levers one of which is responsive to the setting of said code bars, and means under the control of said selected operating lever to record the character represented by the code signals.

2. Code translating apparatus including a radio receiver, a plurality of distributors each of which is successively responsive to successive characters received by said radio receiver, and means responsive to the interval between successive characters to cause one of said distributors to be rendered non-responsive and a second of said distributors to be rendered responsive.

3. In combination, in apparatus for the translation of characters comprising dots, dashes, and zero conditions, with a separate zero condition between successive characters, a radio receiver, a plurality of distributors each of which is successively responsive to successive characters received by said radio receiver each of which comprises combinations of dots, dashes, and zero conditions, and means responsive to the separate zero condition between successive characters to cause said distributor previously responsive to a, character to be rendered non-responsive and the succeeding of said distributors to be rendered responsive to the succeeding character.

4. In apparatus for the translation of code signals, a radio receiver, a plurality of distributors, means to cause said distributors to operate successively in such a manner that only one is responsive to said radio receiver at any one time, a group of magnets associated with each of said distributors, each group being'responsive to code signals from said associated distributor, and a plurality of code bars adapted to be set in a translated code in accordance with the response of a group of said magnets.

5. In code translating apparatus, a radio receiver, a plurality of distributors, means to cause each of said distributors to be successively responsive to successive characters represented by code signals received by said radio receiver, a group of magnets associated with each of said distributors, each group of said magnets being set in accordance with the code signals of a single character, and means associated with each distributor to provide a locking circuit for said group of magnets associated with the preceding distributor.

6. In code translating apparatus, a radio receiver, a plurality of distributors successively responsive to successive characters represented by code signals received by said radio receiver, means to cause one of said distributors to be responsive to the code signals of a character, a Q

group of magnets associated with said one of said distributors set in accordance with the code signals of the character to which that distributor is responsive, a locking circuit associated with the succeeding of said distributors for causing said magnets to be held in their set condition, means operating after said one of said distributors has been responsive to the code signals of said character to render said one of said distributors nonresponsive to code signals received by said radio receiver and to render the succeeding of said distributors responsive to code signals received by said radio receiver, and means operating a predetermined time after said succeeding distributor has been rendered responsive to cause said looking circuit to be broken, whereby said magnets will no longer be held in set condition.

'7. In code translating apparatus, a radio receiver, a-plurality 'of distributors successively responsive to successive characters represented by code signals received by said radio receiver, a group of magnets associated with each of said distributors and responsive thereto for storing the received characters, and means to render only one of said group of magnets responsive at any one time.

8. In code translating apparatus, a radio receiver responsive to code signals comprising dots, dashes, and zero conditions, with a separate zero condition between successive characters, a plurality of distributors each of which is successively responsive to successive characters, a group of magnets associated with each of said distributors and set in accordance with the code signals to which said associated distributor is responsive, a plurality of code bars set in accordance with the energization or non-energization of the magnets in said group of magnets, means responsive to the separate zero condition between successive characters to cause one of said distributors to be rendered non-responsive to code signals and a second of said distributors to be rendered responsive to code signals, means to institute a recording operation in accordance with the setting of said code bars, and means to reset said code bars after said recording has occurred.

9. In code translation apparatus, a radio receiver, a plurality of distributors, means to cause each of said distributors to be successively responsive to successive characters represented by code signals received by said radio receiver, means associated with each of said distributors to store the character to which said associated distributor is responsive, and means to record the character stored in said storage means.

10. In code translation apparatus, a radio receiver responsive to code signals comprising dots, dashes and zero conditions, with a separate zero condition between successive characters, a plurality of distributors each of which is successivesaid means responsive to the separate zero condition. to institute a recording operation in accordance withthe setting of said code bars.

11. In code translating apparatus, a radio receiver responsive to codesignals comprising dots, dashes, and zero conditions, with a separate zero condition between successive characters, a plurality of distributors each of which is successively responsive. to successive characters, a group of magnets associatedwith. each of said distributors set. in accordance with the code signals. to which said associated distributor is responsive, a plurality of code bars set. in accordance with the energizationor non-energization of the magnets in. said group ofmagnets, means responsive to the. separate zero. condition. between successive characters, sequencing means under the control of said means. responsive to the separate zero condition to cause one. of said distributors to be rendered. non-responsive. to said code signals and a second of said. distributors to be rendered responsive. to code signals, and means operating conjointly with the. operation of said sequencing means-to institute a recording operationin accordance with thesetting of said code bars.

12. In code translation apparatus, a radio receiver responsive tov code signals comprising; dots, dashes, and zero conditions, with a separate zero condition. between successive. characters, a plurality of distributors each of which is successively responsive tosuccessive characters, a group of magnetsi associated witheaclr of said, distributors and set in accordance; with the code signals; to which said associated; distributor is responsive, a plurality of code bars set in accordance" with the energization or non-energizationof the magnets in said group. of magnets, means re.- sponsive to the separate zero condition between successive characters, Sequencing. means under the control of. said means responsive to. the separate zero condition to cause one of said distributors to be rendered non-responsive to. code signals and asecond of said distributors to'he rendered responsive to code signals, a second sequencing means under the control of said means responsive to the separate zero condition between successive characters to cause one group of magnets, to be non-responsive. to code signalsv and a second group of magnets to be rendered responsive to code signals, and. means to institute a. recording operation in accordance with the setting, of said. code bars.

13. In combination, in apparatus for the. trans.- lation of characters comprising, dots, dashes,,and zero conditions, with a separate zero. condition between successive. characters, a radio. receiver, a plurality of distributors eachof which is successively responsive to successive characters. received by said radio receiver each of which comprises combinations of dots, dashes, and. zero conditions, means responsive to the separate zero condition between successive. characters, and a sequencing device. under the. control ofsaid means responsive to the. separatev zero condition between. successive characters for causing said distributor previously responsive. to a character to be rendered non-responsive and the succeed.- ing of, said distributors to be renderedresponsive to the succeeding character.

CHARLES W. BURCKY.

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