US443135A - Printing-telegraph - Google Patents

Description

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s. V. BSSIGK. PRINTING TELEGRAPH.

No. 443,135. Patented Deo. 23, 1890.

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PRINTING TBLBGRAPH. No. 443,135. Patented Deo. 23,1890).A

UNITED STATES PATENT OEEicE.

SAMUEL V. ESSICK, OF BROOKLYN, NEW YORK.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 443,135, dated December 23, 1890.

Application led March 10. 1890. Serial No. 343,272. (No model.)

To all whom, it may concern.-

Beit known that I, SAMUEL VAN BUREN ESSICK, a citizen of the United States, residing at Brooklyn, county of Kings, and State of New York, have made a new and useful invention in Printing-flelegraphs, of which the following is a specification.

My invention relates particularly to iinproveinents in printing-telegraph receivers of the page type, in which the message is printed upon a page or sheet of paper, after the manner of a type-writer, and is directed to improvements upon thereceivingapparatus disclosed in my prior application for a patent, Serial No. 290,247, filed in the United States Patent Office on the 7th day of November, 1888; and its objects are, first, to devise a receiving apparatus in which the paper-carriage shall be positively propelled through the agency of a spring or weight impelled meehanism; second, to provide improved means for returning the paper-carriage to its normal position at any portion of its forward advancement, thereby avoiding the necessity of advancing saidcarriage to its eXtreme limit before it is returned to itsnorinal position; third, to cause the printing to be effected through the agency of power-impelled mechanism controlled by an escapement, and, fourth, the general accomplishment of the several functions attributed to the entire mechanism hereinafter described. I accomplish these objects by the mechanism disclosed in the following application and illustrated in the drawings herewith,but particularly pointed out in theclaims which follow this specification.

Referring to the drawings, in which like letters of reference represent like parts wherever used, Figure l is a plan view of the entire apparatus. Fig. 2 is an end elevational view of the apparatus, as seen looking at Fig. 1 from right to left. Fig. 8 is an elevational view of the paper-carriage and its connections as seen looking at Fig. 1 in the direction of the arrow A4. tional view of the several levers and their connections for effecting the printing, the unison of the type-wheel, and the restoration of the paper-carriage to its normal condition at any portion of its path, the several shaf ts and printing-lever, together with their sup- Fig. 4 is a detail elevaports, being shown in cross-sections. Fig. 5 is a cross-sectional view of Fig. 1, taken on line at, as seen looking from right to left. Fig. 6 is a detail elevational view, partly in section, of a part of the releasing apparatus for releasing the paper-carriage both at the end of its excursion and during any portion of its journey. Fig. 7 is a sectional view, partly in elevation, of the paper-carriage and mechanism for feeding the paper forward line by line at the end of each excursion of the carriage. Fig. 8 is a detail view of the typewheel shaft and its connections with the propeiling mechanism, together with `the unisoning devices.

In my prior invention, disclosed in the application above referred to, I have described and claimed a novel form of paper-ca`rriage, in which the carriage is fed forward step by step through the agency of an electro-magnet, a rack and pawl, and a retaining-pawl and mechanism for returning the carriage to its normalposition during any portion of its journey.

In the present invention I provide a positive power-impelled feed controlled by an electro-magnetic escapement and cause the entire mechanical operation of printing, paper-feed, unisoning, and carriage manipulation to be effected through the agency of power-impelled mechanism which is controlled in its operation by an electro-magnetic escapement. For a full understanding of the invention reference is had to the drawings, in which- A represents the base of the instrument, and B B B2. vertical side frames, either integral therewith or bolted thereto and provided with the necessary brackets for sustaining the operative parts of the mechanism.

T T are two trains of gear-wheels, the former being impelled by a weight and the latter' by a spring-driven drum. The last gear-wheel of the train T meshes With a pinion borne by a shaft journaled in the frame and carrying a gear wheel J and an escapement f, controlled by a pallet c under the in fluence of an armature-lever a, borne between two legs of a polarized magnet M, located directly in the main line. The gear-wheel J IOO meshes with a pinion G, adapted to run loosely on a shaft K,journaled in the frame between the part B and bracket ll and carrying a type-wheel T2.

lV is a unison-worin having an arm Mq and a pin p10, adapted to fit in a hole in an arm carried by the pinion Gr, said worm being capable of lateral motion on the shaft K against the stress of the spring s.

lr is a unison lever carried by a shaft M and having a pin p" on its lower end adapted to take against the arm M when the unisonscrew W is carried to the left under the inflnence of said lover l' and as the shaft l( is rotated.

Q is an inkingroll carried by the arm R, pivoted to the bracket li and provided with a weight XV for holding it in inking contact with the type-wheel T?. One shaft ofthe train of gear T carries an escapement j", controlled by a two-armed pallet e on the armature-le ver a. of the magnet M', and the last wheel DL of this train is geared to a pinion c?, carried by a shaft X, pivoted in the frame B and journaled at its free end to a vertically-mow ing block W. This shaft X carries a worm w3, adapted to gear with a rack Y', secured at its opposite ends to a paper-carriage C C. This papercarriage is borne in grooved runways G G2 by three Africtional rollers c c? cl and is provided with paper-guides y g`2 at its opposite edges adapted to receive a sheet of paper P2. (See Fig. 3.)

he gearing between the shaft which carA ries the escapementf and the pinion e2, carried by the shaft X, is such that one complete vibration of the armature-lever a and hence the pallet c', permits one complete rotation of the shaft X, and with it the worm trg, as well as a cam c2, located at a point between the pinion e2 and the worm. This cam c2 is adapted to bear once in each revolution upon an arm N, carried by a rock-shaft M, pivoted in the frame, the said arm N5 being returned to its normal position bya spring after cach action of the cam c2. The free end of this arm N5 is adapted to bear in its forward movement against the lever V, pivotally secured to the frame B by rock-shaft Y at points t2 t2. On the free end of the lever Y is a platen p, adapted to strike against the rear side of the paper and force it against the type-wheel T2 when the cam ci forces the arm N5 into its forward position.

R2 is a rock-shaft parallel with shaft X and pivoted in a frame and a yoke, as shown in Fig. 3. On the outer end of this shaft is an arm c, having a cam-surface adapted to bear against a pin c", fxedly secured to the verti cal sliding block F2, which carries the 'free end of the wormshat`t X. The other end of the shaft R2 carries an arm c4, extending downward and provided with a pin p, adapted to play in a slot s in the lower end of an arm M", integral with a sliding push-bar M, which rests at one end upon a pinion j?, and is provided with a rack YE, meshing therewith. The other end of said push-bar is provided with a slot .si for sustaining it in a sliding position upon a rod or pin attached to the framework of the machine.

M5 is an angular arm rigidly fixed to the push-rod M3 and extending upward and over a pin p7 on the unison-arm Y, the upper end of said angular arm being provided with a hook, as shown in Fig. 4.

s" is a leaf-spring for restoring the push-bar M3 to its normal position after said push-bar has performed its function.

D is a drum secured to the frame-work by brackets and provided with a spring on its inner side and a cord c" attached to its snrface at one end and to a carriage C C at the other, the function of which is to return the carriage to its normal position,the tension of the spring in the drum being such that when the carriage is released it will be drawn forward in a grooved supporting-frame G G2.

lf* is a milled or roughened feeding-roll journaled in the carriage-frame C C and provided with a ratchet r and a propelling-pawl p", secured to a lever D3, which is pivoted to the lower edge of the carriage at p2, and is adapted to move laterally in a slotted sup` port G3, secured to the upper edge of the carriage-framc.

Dte is a iixed angular arm secured to the frame of the machine and lying in the path of the lever Di, as shown in Figs. l and 7.

F20 is a tension-roller pivot-ally secured to the carriage-frame and held against the paper Vby spring s2, so that as the pawl p is vibrated the paper will be fed forward. There maybe an additional milled roll, the duplicate offt, at the opposite edge of the frame, secured to a shaft extending across said frame, and an additional pressure-roll, if deemed necessary, in order to feed the paper evenly.

I will now describe the electrical connections.

I)2 l?2 are the binding-posts for the mainline circuit, and l l are similar bindingposts for the local circuit.

Z is the main line, coming from the distant transmitter, adapted in this instance to send constantly-recurring currents of opposite polarity. From the binding-posts Pi2 the circuit passes by wire it" to and through the two coils of the polarized magnets M and back again to the binding-post P2 and thence to earth at E.

C is a lever pivotallysecured at one end to the frame of the machine and resting at or near its middle with a detents upon a ratchet r3, having as many teeth as there are characters upon the type-wheel or bearing a fixed relation thereto, and adapted when the escapementf is stopped to close the circuit from the local battery BA through the magnet M and wires z/.f 2t' at the contact-points H. The polar magnets M may be replaced by neutral magnets and a transmitter'used which constantly interrupts the lin e-circuit, and thereby imparts motion to the pallet. Any transmit- IOO IOS

IIL.

ter may be used with this Vreceiver which sends successive impulses constantly to line; but the transmitter which I prefer to use is similar to that disclosed in my prior patents, in which a constantly-operating pole-changer causes a polarized magnet M to act continuously upon the pallet e until prevented by the depression of any key of the transmitter.

I will now proceed to describe the operation of the entire apparatus. As long as the pallet continues to permit the advancement of the escapement-wheel f under the iniiuence of the polar-magnets M the ratchet-wheel continues to liftthe circuit-lever O, and therefore to interrupt the local circuit at the points t t. As this rotation continues the typewheel shaft K is caused to rotate and a sliding unison-worm lV is carried to the left (see Fig. 8) under the influence of a unison-lever U, acting in lthe worm against the stress of a spring s. This continues until the pin p10 is released from its engagement with the arm on the pinion G and until the pin pf has come frictionally into contact with the arm M8, thereby stopping the type-wheel shaft and permitting the pinion G to run loosely upon the shaft.

VSuppose now the paper-carriage to be in its normal position with the type-wheel at the extreme left-hand edge of the paper and the transmitter held from action by the last key depressed. iirst key of the transmitter releases it and allows it to run forward until it is stopped by the key last depressed. This permits a specified number of impulses to be sent over the line, and as the unison-lever U was released from the worm XV by the last closure of the circuit at t t', as will be described later on, the type-wheel shaft K has again been conneet-ed to the pinion G by the arm M and pin p10 under the influence of the spring s, and hence the type-wheel will be rotated through the desired angle to the letter it is desired to print. lVhen the escapement stops, therefore, the detent t3 of the lever O falls into one of the ratchet-notches of the ratchet r3, allowing the local circuit of battery BA to be closed through the magnet M and wires w w at the contact-point t t. This actuates the armature-lever d and allows the spring-iinpelled train of gear T to advance the escapement f one step, and hence through the agency of gear-wheel D4 to propel the pinion e2 one half-revolution, thereby causing ,the shaft X to give to the worm w3 one half-rotation and to advance the rack V a distance equal to a letter-space. The same action causes the cam c2 to impart to the arm N5, and hence to the printing-arm V, a forward motion, thereby causing the printing-platen ps to strike the paper in the rear of the particular type it is desired to print. The pallet-lever c holds the escapement, and hence the pinion e2 and shaft X, with its cam c2 and printing-lever, in this position until the circuit is broken by again starting the trans- The o erator on de ressinff the mitter. lnasmuch as the unison-lever U is fixedly secured to the shaft M6, which carries the arm N5 each time a'letter is printed, this unison-lever will be lifted from the worm lV and lthe type-wheel shaft will becontinuously connected with the pinion G, unless the apparat-us is allowed to run until the pin p9 is locked with the arm MS, as before described. The pinion J2 (see Fig. 4) is so related in its gearing to that of pinion G on the type-wheel shaft K that the latter will make two complete revolutions while the former is making one, or at least shall make a greater number of revolutions, so that the paper-carriage will not be returned to normal position for less than two rotations of the type-wheel. As the carriage advances under the action of the worm w3, each time a letter is printed the unison-lever U is lifted and carries with it, through the agency of the pin p7, the angular arm M5, attached to the push-bar M3, thereby lifting the rack V2 out of contact with the pinion J2 and allowing the spring s4 to restore it to normal position. However, should the pinion J 2 make more than two revolutions undisturbed bythe cam c'2 and the connecting-levers N5, U, and M5 it will cause the rock-shaft R2 to rotate the cam-arm c3 to its extreme position, as shown in Fig. G, thereby lifting the block F2, and hence the worm w3, out of engagement with the rack V and permitting the springdrum D', through the agency of the cord c4, to return .the paper-carriage to normal position. This action ot' restoring the paper-carriage to normal position will take place at any time if the escapement-wheel f is allowed to run a sufficient time to permit the pinion .l2 to make more than two revolutions, and this is accomplished at the transmitter by allowing the pole-changer to transmit the desired number of impulses to the magnets M. lVhen the carriage returns to its normal position after having completed its advance motion, the pivoted lever DS rides behind the angular lever D2 and gives to the free end of said lever, and hence to the pawl p4, a forward motion, thereby imparting to the feed-roll f4, through the agency of the ratchet r, a forward motion, which advances the paper between said roll and the tension-roll F20 one line, and the apparatus is in a position to print a new line. This operation continues from line to line as the message is printed, and when it is desired to complete a sentence at anyportion of a line the mechanism is simply allowed to run, as described, under 4the influence of the main-line magnets M and the escapement controlled thereby until the worm w3 is lifted out of engagement with the rack V', as already described.

I do not limit myself to the use of the abovedescribed mechanism for printing-telegraphs, as there are features of my invention above described which obviously might give advantageous use in type-writers and analogous printing devices where the paper and paperlIO carrying carriage are to be fed and propelled by a source of power controlled by key mechanism, and I desire it to be understood that the claims shall be of such scope as to include inventions of this generic nature. Nor do I limit myself to the use of two sources of constantly-applied power, as it is obvious the entire mechanism might be propelled from a single source of power, as a spring-drum or weight acting through a train of gear.

Having thus described my inventitm, what l claim, and desire to secure by Letters Patent of the United States, isM

l. A printing-telcgraph receiver of the page type, having a type-wheel carried by a rotary shaft. connected through a sliding unison worm and pin with a loose-running gearwheel which meshes with a power-impelled train of gear, and a paper-carriage geared to a second source of power, in combination, with escapements and mechanical connections, as described, whereby the carriage is moved athwart the type-wheel, printing effected, and the papel' advanced line by lille, substantially as described.

2. In a printing-telegraph receiver or axialogous printing device, a type-wheel carried by a rotary shaft geared to a continuouslyacting source of power, a paper-carriage geared to a second continuously-aeting source of power, escapemeuts for the type-wheel and paper-carriage. a printing-platen carried by a printing-lever mechanically connected tothe second source of power, and mechanical and electrical connections whereby printing is effected in page forni. substantially as de` scribed.

8. In a printing-telegraph receiver or analogousprint ing device. a type-wheel and papercarriage and an actuating-motor provided with an eseapement for operating each` a retraetor for moving the said paper-carriage backward. feed mechanism for advancing the paper line by line, and mechanical connections between the type-wheel and paper-carriage for releasing the paper-carriage at any point in its forward movement. substantially as described.

et. In a printing-telegraph receiver or analogous printing device, a type-wheel carried by a rotary shaft geared to a continuouslyaeting source of mechanical power, a papercarriage geared toa second continuously-acting source of power. a printing-platen carried by a lever having mechanical connections with the second source of power, and an eseapement for each source of power, substantially as described.

5. A printing-instrument having a rotary type-wheel, a printing-platen carried by a printing-level', a lmper-carriage, and power impelling lnechanism geared to a rack and worm-shaft, in combination with mechanical Connections between said parts and the power impelling mechanism whereby the paper-carriage is moved, the paper fed,and printing effected by the power derived from said impelling mechanism, substantially as described.

6. A printing-instrument having a typewheel, a printing-platen carried by a printinglever, a paper-carriage, power im peiling mechanism geared to a rack-aml-worm shaft and having mechanical connections intermediate the paper-carriage, the printing-lever, and the type-wheel, in combination with eseapement mechanism for regulating the application of the power whereby printing` is effected, the paper-carriage advanced step by step, and the paper fed forward line by line, substantially as described.

7. ln aprinting telegraphic receiver, a typewheel borne by a shaft' carrying a loose-running pinion meshing with a train of gear, a spring-pressed worm and unison-lever, and connections whereby the shaft and gear-train are connected and disconnected at will, substantially as described.

S. In a printing-telegraph receiveror analogous printinginstrument, a paper-carriage positively connected to a power-impelled train of gear through a rack-and-worm gear, in combination with mechanism for releasing the worm from the rack at any part of its journey, said releasing mechanism consisting of a cam-lever and rock-shaft, and mechanical connections with a power-impelled train of gear, as described, additional means being provided for returning the carriage to normal condition when released, all of said parts being regulated in their operation by an escapement, substantially as described.

9. In a printing' telegraphic receiver or analogous printing-instrument of the page type, a paper-carriage havinga raekeonnected by worm-gear and shafting to a source of power, a spring-impelled drum connected to the carriage for restoring it to normal position, ratehetand pawl feeding mechanism connected to the carriage and frame, and releasing mechanism consistingof a rock-shaft, cam-lever, and mechanical connections operatively connected with the worm-gear and the source of power, all substantially as described.

lo. ln a printiiig-telegraph receiver, a typewheel geared to a constantly-acting source of power, a paper-carriage geared to a secon d constantly-acting source of power, and a printingplaten carried by a printing-lever mechanically connected to the latter source of power, in combination with a pair of electro-magnetic escapements, the former controlled by an electro-magnet in the main line and the latter by a second electro-magnet in a local circuit, and electrical connections, substantially as described.

ll. In a printing telegraphic receiver, a po\ver-iim ielled type-wheel, a power-impelled paper-carriage, an escapement controlled by line-currents for regulating the rotation of the type-wheel, and a second escapement controlled by a local circuit connected to a mechanical circuit-closer actuated by the first IOO IIO

eseapement for regulating the advahcement l will the type-wheel to the shaft which carries of the Carriage, substantially as described. it, and mechanical connections, substantially 12. In aprinting-telegraph,the combination as described. of the following elements: a poWer-impe11ed SAMUEL V. ESSIGK. 5 type-Wheel, au eseapement therefor, a power- Witnesses:

impelled carriage, an additional escapement C. J. KINTNER,

therefor, a iinisoning device for connecting at N. S. BAILEY.

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