US2247914A - Machine for interpreting and printing perforated records - Google Patents

Description

, July 1, 1941. c. D. LAKE. 2,247,914

MACHINE FOR INTERPREI'ING AND PRINTING PERFQRATED RECORDS Filed Dec. 28, 1937 6 Sheets-Sheet l FIG. 1.

' A'TToRNEY July 1, 1941.

MACHINE FOR INTERPRETING AND PRINTING PERFORATED RECORDS Filed Dec. 28, 1937 PIC-3.2.

il HI[Hil IHI HI I g b-Q m m C. D. 'LAKE 6 Sheets-Sheet 2 INVENTOR AOTTORNEY July 1, 1941. c, K 2,247,914

MACHINE FOR INTERPRETING AND PRINTING PERFORATED RECORDS 6 Sheets-Sheet I5 Filed Dec. 28, 1937 FIG. 4. 6/

' Ai'TORNEY July 1, 1941.

C. D. LAKE Filed Dec. 28, 1937 FIG. 6.

6 Sheets-Shet 4 41 4 i Q; V

45 L M22101 0 o I .J

164 I I67 Q 76? Ma 58 9\ INTERNATIONAL CORPORATION BROADWAY, NEW Yom E3 *DOLLAR ATTORNEY July 1, 1941. c. D. LAKE MACHINE FOR INTERPRETING AND PRINTING PERFORATED RECORDS Filed Dec. 28, 1937 6 Sheets-Sheet 5 FIG. 8.

INVENTOR ATTORNEY y 1941- v c. D. LAKE 2,247,914

MACHINE FOR INTERPRETING AND PRINTING PERFORATED RECORDS Filed Dec. 28, 1937- 6 Sheets-Sheet 6 FIG.

CIMD fzm FIG.11. a lazy ATTO R N EY Patented July 1, 1941 MACHINE Fon m'rsaran'rmd AND ram'r- I NG rsnrona'rnn nnconns Clair D. Lake, Binghamton, N. Y., assixnor to International Business Machines Corporation, New York, N. Y., a corporation of New York Application December 28, 1937, Serial No. 182,057

7 Claims. (Cl. 235-613!) This invention relates to tabulating machines and more particularly to machines of the type capable of sensing perforated records, interpreting the meaning of the perforations, controlling the operation of printing mechanism to print the amounts represented by the perforations on the records, and for controlling the entry of the amounts in the accumulator mechanism.

Machines of the above type have been utilized for printing on the perforated records to form checks issued for payment of some monetary transaction. It is very desirable that the amounts be printed in the checks at two places, one by protective type, that is, pin-point type capable of resisting alterations, and also to print the amount by type which is more legible.

Machines of the above type have been found to be highly accurate in their operations when used commercially. Nevertheless any single instance of improper printing should be guarded against, however rare its occurrence.

Such improper operations may result from wear of parts, dust, change in adjustment of parts, and the signaling to the user of such a change is an indication of a requirement of service for such machines to prevent repetition of improper printing.

It is, therefore, the main object of the present invention to provide a machine capable of printing two equal amounts by a single operation of the machine and to provide a comparing mechanism for indicating to the operator if the amounts printed were not equal.

A still further object of the invention is to provide an accumulator with means to effect the entry of such amounts in the accumulator and to provide means to prevent the entry of the amounts if the printed amounts are unequal.

More specifically it is an object of the present invention to analyze a record, to provide means under control of the analyzing means to control the setting of two sets of type bars to print amounts at two places on a record, to cause the entry of such amounts in an accumulator, to provide means to compare the setting of the two sets of type bars, and means to prevent the printing and entry operations, whereby an amount will not be entered in the accumulator nor printed upon the record.

A still further object of the invention is to provide a read-out mechanism settable under control of the type bars for reading out the amounts represented by the already set type bars, and entering the same in the accumulator. Such an arrangement insures that the entered amount is always the same as the printed amount.

Other objects of the invention will be pointed out in the following description and claims and illustrated in the accompanying drawings, which disclose, by way of example, the principle of the invention and the best mode, which has been contemplated, of applying that principle.

In the drawings:

Fig. 1 is a central longitudinal sectional view of the machine.

Fig. 2 is a sectional view taken at one side of the machine.

Fig. 3 is a detail view of the connection adapted for effecting printing line adjustments.

Fig. 4 is a view in side elevation disclosing in normal position the means controlled by the type bars for causing the closure of checking contacts at the time the type bars are stopped.

Fig. 5 is a perspective view of the contact closing devices to more clearly show their arrangement and construction. I

Fig. 6 is a View similar to Fig. 4 but showing certain parts in operated position.

Fig. 7 is a representation of a check capable of being printed by the machine disclosed herein.

Fig. 8 is a sectional view of an accumulator and the driving mechanism therefor.

Fig. 9 is an end view of the accumulator resetting driving mechanismand the magnetic resetting control therefor.

Fig. 10 is an electrical wiring diagram.

Fig. 11 is a timing diagram showing the timing desirable to close certain electrical contacts.

Card feeding mechanism In more detail, l0 (Fig. 2) represents the main drive shaft of the machine. This may be driven in any suitable manner as by an electric motor through belt Ii rotating a pulley attached to a shaft 15?. .A uni-directional coupling I2 is interconnected between shaft IO and I51.

From shaft in a worm I3 (Fig. 2) drives worm wheel l4 secured to a shaft ii to which is also secured a box cam IS. A pivoted cam follower arm H has a roller l8 at one end riding in the cam groove and at the other has connection to an arm l9 through adjustable rod 20.

Arm I9 is secured to a shaft 2| having arms 22 (see Fig. 1) in pin and slot engagement with pickers 23 mounted for reciprocation in the frame of the machine. This reciprocating picker mechanism is adapted to advance one record card at a time from the supply stack or magazine 24.

Shaft |51 through gears 25 shown in Fig. 2 drives a parallel shaft 25 which has threaded sections 21 meshing with worm gears 25 on feed roller shafts 29 to drive feed rollers 35 (F18. 1) constantly. The card which is advanced by the picker passes into the bite of the first pair of feed rollers 35 to the left in Fig. 1 and is subsequently guided to the analyzing or perforation reading devices which comprise brushes 3! and a contact roller 32. These brushes and contact roller are of conventional structure such as is commonly used in electrically controlled tabulating machines.

,After passing the analyzing brushes 3|, the cards pass to the second pair of feed rollers 30 which advance each card to a pair of intermittently driven rollers comprising upper spring pressed rollers 33 and lower rollers 34 which engages the edge of the card. These rollers 33 and 34 advance the card to printing position at which time they momentarily pause in their rotation to stop the feeding of the card to permit printing on the card in accordance with the preceding analysis.

This interruption in the advance of the card is accomplished as follows: Rollers 34 are secured to a shaft 35 (Fig. 1) journaled in the frame of the machine and having attached at one end a gear 35 (Fig. 2) meshing with a gear 31 on shaft 35 on which shaft is also a gear 39 adapted to be driven by a mutilated gear 49 free on the continually running shaft l5. Gear 40 carries a pin 40a (see Fig. 3) which may be set in any one of five slots 49b in a disk 49c which is integral with worm wheel |4. Gear 40 is supported by a sleeve 49d which is loosely mounted on the shaft l5.

During the rotation of shaft ii the gear 40 will pick up gear 39 by means of the teeth thereof -to advance the card to printing position, upon reaching which, the toothless portion of gear 40 moves into locking engagement with gear 39 as shown in Fig. 3. After printing has been effected gear 39 is again engaged for rotation and the card is fed forward to a conveying means (Fig. 1) comprising rollers 4| and tracks 42 which convey the card to a suitable stacker 43 where they are collected. The shafts upon which rollers n are secured are adapted to be continually driven by reason of the gear connections 44 to the shaft 25 as shown in Fig. 2. It is the frictional engagement of rollers 4| with the upper surface of the card which causes the card to be advanced along the tracks 42.

It will be apparent that by altering the relationship between gear 45 and wheel l4, the position on the card in which printing is effected will be altered. That is, if the gear 40 is so adjusted that the cam portion is earlier effective in its time of operation, the card will be sooner interrupted in its advance and a lower line will receive the printing impression.

Printing mechanism For eflecting the printing on the record cards as they successively pass through the machine a plurality of type bars 45 (Fig.1) are provided. These bars are all mounted for reciprocation in the frame of the machine and each have a connection through a spring-pressed pawl 45 to a. crosshead 41. Thus, in Fig. 1, upon movement of crosshead 41 to the left the pawls 45 through frictional engagement with bars 45 will move the bars concurrently in the same direction.

The bars may be arrested at any point in their travel and subsequently the pawls 45 will disengage and permit the further movement of the crosshead 41. Upon the reverse movement of crosshead 41 the shoulders I55 of the bars 45 will be engaged thereby to positively move the bars to restored position. For reciprocating crosshead 41 the following mechanism is provided.

As shown in Fig. 2 the crosshead 41 is connected at its ends to blocks v45 slidable uponrods 49 and having pivoted link connections 59 to a follower arm 5| pivoted at 52. Arm 5| has a roller 53 cooperating with the cam groove of a box cam 54' mounted on a shaft 55 connected through worm gear 55 and worm 51 to the constantly running shaft ID. The arrangement and timing of the parts is such that the type bars 45 are advanced under the influence ofpawls 45 synchronously with the movement of a card past the analyzing or sensing brushes 3|.

If a perforation at, say, the 5 position on the card is under the sensing brushes, the corresponding type representing 5 will be at the printing line. The establishment of an electric circuit through the index point perforations by the brushes is adapted to energize a magnet 53.

There are a number of these magnets 55, each magnet being related to a corresponding type bar 45. The energization of any unagnet is adapted to release a pawl device 59 through a wire 5| and latch 52 and allow it to engage one of the ratchet teeth 59 on the bar 45. After pawl 59 has engaged the teeth 55 further movement of the type bar 45 to the left in Fig. 1 is prevented. The type bars 45 are positioned during a passage of a card past the brushes. Subsequently these type bars are held during the period that a card passes from the analyzing station to printing position and during the printing operation. After the printing operation, pawls 59 and latches 52 are positively restored in the following manner.

Secured to shaft 55 is a cam 53 (Fig. 1) against which presses the roller of an arm 54 and which latter is pressed upwardly by a spring 55 acting through an arm 55 on shaft 51. The shaft 51 has secured thereto arms 55 which carry a restoring plate 59. Arms 19 pivoted on a rod 154: and having a pin and slot connection to arms 59 carry a restoring plate 1|. By this construction cam 53 is adapted to move plate 59 to the left to restore pawls 59 and plate 1| is moved upwardly to restore latches 52 and their connected wires 5|.

For each type bar 45 there is an individual hammer 12 which is adapted to strike the particulartype 13 on the type bar which is at the printing line. The hammers are pivotally mounted on a rod 14 carried by a bar 15 and depend for their actuation upon movement of said bar. The bar 15 is pivoted on the frame of the machine by means of pintles co-axial with rod 14 and has springs 15 biasing the bar in a clockwise direction in Fig. 1.

To the middle of bar 15 there is pivoted a cam follower arm 11 bifurcated to straddle shaft 55 and having a roller 11a in cooperation with a cam 19. Fixed to one face of the cam 15 is a cam member 19 which cooperates with a projection of the cam follower arm 11.

As the cam 15 revolves, by virtue of the shaft 55 being driven in the manner previously described, it cooperates with the arm 11 through its follower roller IIa, gradually retracting the hammers 12 in a counterclockwise direction against the tension of springs II.

As the roller Ila leaves the high point of the cam 10, member I engages the projection 00 and upon continued rotation of the cam the pro- Jection 00 drops from the member I0 and the springs I0, thus released, turn the common bar I in a clockwise direction to swing the hammers I2 against type 13 thus eifecting printing.

Referring to Fig. 1, 0i designates a printing platen Journalled in the frame of the machine and adapted to be turned by frictional engagement with the passing card to prevent excessive wear at any one place. The inking ribbon de- 01 vices are of conventional form and require no detailed description the ribbon 02 being guided along the platen 0i and beneath the tabulating card.

Circuit diagram (Fig.

In machines of this type it is desirable that the circuits which are closed through the perforatio'ns in the card to magnets 50 be interrupted before the brushes 3i leave the perforations in order to prevent arcing at the brushes. To this end circuit breaker contacts 08 are provided as shown, in Fig. 10.

These contacts 08 are adapted to be closed by a dentated cam 09 rotated by a shaft which is geared to the shaft 55 so as to rotate twice for each rotation of shaft 55. Contacts 00 make contact just after the analyzing brush 3i makes contact with the roller 32 and open such contact before the perforation has left the brush 3i. The circuit to the magnet 53 through the hole in the card is as follows:

From line 9i through circuit breaker contacts 88, card lever relay contacts I25b closed when cards are being fed, wire 03, to common contact roll 32, brushes 3i, plug connections 95, magnets 58, switches 98, wire 99, wire I00 to other side of line IOI.

A set of switches I02 as more particularly explained in Patent No. 1,946,900 is provided and the switches 98 are opened and switches I02 are closed to conduct the above described sensing circuit from magnets 58 through switches I02, wire I03, cam contact. CC-I, wire 99, wire I00 to line side IOI. 0am contact CC-i and other CC contacts are controlled by cams on the shaft 55 and cam contact CCI is timed to be opened during the time the 12th, 11th and 0" index points on the card arrive at the sensing brushes and to close just after the 0" index point has passed the brushes so that the occurrence of a perforation in the 0," 11 or 12" positions will not be efiective to control magnet 58 in the columns in which switches 90 were opened and switches I02 closed.

In the present machine both switches 98 and I02 are closed as shown in Fig. 11 so that contacts CC-I are ineffective. This will permit the perforations at the 11, 12 and 0" positions to control the position of the type bar to print related characters. However, for printing digits representing amounts printed on checks, 11 and 12 are not printed. However, under control of the 0 perforation, the zeros are printed, and as will be later evident, are checked for accuracy in printing.

Referring now to the circuit diagram (Fig. 10) certain of the mechanical parts are shown in a diagrammatic manner in this view. In this figure M is the driving motor which by the belt and pulley connection drives the main drive shaft II of the machine. This shaft through the gearing described drives the picker devices, which ad-' vance the feed rolls to feed the card past the cooperating brushes 3| and passing the brushes the usual card lever is pressed by the cards thus closing card lever contacts 02.

To start the machine into operation the operator first closes main line switch I2I. Thereupon start key I22 is depressedvwhich upon the closure of its contacts establishes a circuit from line 0i, wire I20, through start key contacts I22, wire I23, motor relay magnet I24, motor M, wire I00, to other side of line "II. The energization of the motor causes the feeding of cards to close the card lever contacts 92 and cause the energization of card lever relay magnet I25 through a circuit from line 9i, card lever contact 02, wire I26, magnet i25, wire I21, to the line III. This closes the relay contacts I25a which together with relay contacts I2|a establishes a holding circuit for the motor M from the line 9i through stop key contacts I28, relay contacts I25a, relay contacts I35a, (now closed) relay contacts I2la, motor relay magnet I24, motor M to line IN.

A cam contact CC-2 is provided to hold this circuit during the interval between cards when relay contacts I25a will be open and the circuit follows from line 9i, line I20, cam contacts CC--2, wire I30, relay contacts I35a '(now closed),

relay contacts I24a, motor relay magnet I24,

through motor M to line I0i as before. Contact CC-2 also serves to take the are from the relay contacts I25a with which it is in parallel.

Printing of zeros is effected by the usual zero suppression devices the description of which is not necessary for an understanding of the present invention but which may be of the form shown and described in the patent to G. F. Daly, No. 1,946,900,1ssued February 13, 1934.

Multiple amount printing The card check illustrated in Fig. 7 shows the printing of the amount 789.81 in protective type, that is, pin point material piercing type, under control of the printing control magnets 50. For printing this data five printing bars are utilized. In some types of check writing work it is desirable to'print the same amount on the check in another position and in more clearly readable type, as identified by reference numeral I31 in Fig. 7.

To this end there is provided five supplemental type bars set in the same manner previously described but are under control of five printer control magnets 58a (see Fig. 10). The magnets 58a are plug connected by plug connections I30 to the brushes 3i and therefore, receive impulses at the same time to effect the printing of a corresponding amount on the check, as shown in Fig. 7.

Adding amounts printed on checks The machine is provided with an accumulating mechanism for adding together the amounts represented by the successive card checks and which amounts are printed on the card checks.

The accumulating mechanism is of a type well known in the art since its construction is employed in tabulating machines of a commercial type and for this reason is only generally described herein.

The setting of the type bars is utilized to control the entry of amounts in the accumulator and the entry part of the cycle occurs after the setting up of the type bars, as will be shown in I normal and in any differential position of the type bar always makes contact with a contact making plate I and at a differential position of spring element I40 makes contact with one of a series of wire bus bars I42, depending upon the adjustment of the type bar 45. There are five spring contact making plates I4] and each has a wire connection to a related accumulator control magnet I43 (see Fig. The nine bars I42 have wire connections I430 to the nine contact points I44 of an emitter Em. The contact points I44 of the emitter Em are contacted by a rotatable brush I 45. The brush I45 of the emitter Em is driven by a shaft to be later referred to and which rotates twice for each machine cycle butv due to the opening of the circuit to contacts 55, timed to close during the second rotation of cam 09 at the same time that the brush I45 closes the circuits to the adding control magnets I43, card lever relay contacts I25b, a

. wire I45, contacts I41, closed after the type bars have been set, as will be explained, relay contacts I350 normally closed, brush I45, a contact point I44, 9. related bar I42, contact spring I40, contact plate I, control magnet I43, and a wire I45 connected to one side of all the control magnets I43 and to the line side IOI.

In Fig. 4 there will be seen the contacts I41 which are closed by a pin I40a carried by the cross head 41 in the extreme rocked position of the crosshead, that is, after the type bars have been differentially set. The cross head remains in this position during the operation of the emitter Em. Contacts I41 are opened, of course, during the first closure of the circuit breaker contacts 50 to thus prevent adding operations during the type bar setting operations.

As previously intimated the accumulator is of a type well known in the art and is fully shown and described in the patent to C. D. Lake, No. 1,307,740, dated June 24, 1919. The transfer mechanism for this accumulator is shown in the pgaiagntto Hollerith No. 974,272, dated Nov. 1, 1

As shown in Fig. 8 the accumulator control magnets I43 correspond to the magnets desighated by numeral 1 in Patent No. 1,307,740 which control the operation of clutches to differentially set accumulator reading wheels I45, so that data entered therein may be visually read.

The drive shaft I 50 of the accumulator unit carries a gear I 5| meshing with, a pinion I52 rotatable with a gear I53, the latter meshing with a Pinion I54. The latter is rotatable with a gear I55 meshing with a gear I55 (Fig. 2)

attached to a shaft I51, and which shaft I51 Is constantly driven by the belt II. By these gear connections the machine has driving connections to drive the accumulator drive shaft I50 provided for the accumulator unit.

It is Pointed out that the shaft I50 drives the brush I45 of the emitter Em for reading out electrically the setting of the type bars 45.

Checking for simultaneous positioning of the twosets of time bars It is desirable to check the position of the two sets of type bars to ascertain whether the simultaneous positioning ofboth sets is effected. This is performedby mechanism shown particularly in Figs. 4 and 6 and explained in connection with the wiring diagram.

For each type bar of the two sets there is provided a camming lever I50 pivoted at I to the crosshead 41 and provided with a high portion I52 cooperating with the tail I50 (Fig. 4) of the pawl 45 when the crosshead 41 is moved slightly to the left, as will be made clearer later. The camming lever I50 is also provided with a-recess I5I to the left of the high portion I52.

When the pawl 52 is unlatched (as shown in Fig. 6) due to the energization of the magnet 55 after a short travel of the type bar 45 the pawl 59 will engage the notch 50 to stop the type bar 45 and as the crosshead continues further after the type bar is stopped a cam edge I53 of thestopped type bar 45 will rock the pawl 45 so that the tail I50 in engagement with the portion I52 of level I50 will rock the lever I50 so that it actuates a T-shaped lever I54, the latter being carried by a pair of arms II5 loosely mounted on rods I55. A continued rocking of the pawl 45 will cause the tail I50 thereof to slip by the high portion I52 and into the recess I5I, permitting both the lever I50 and T-shaped lever I54 to be rocked upwardly to normal by a spring connected to each lever I54.

For one denominational order of the type bars 45 the upper arm I55 has integral therewith an arm I51 adapted to close a pair of contacts I53a. Each of the five type bars of one set will cause the closure of a related pair of five pairs of contacts I550.

For the next denominationally ordered type bar of the same set it will be seen from Fig. 5

that the lower arm I55 has an integral arm I50 adapted to close its pair of contacts I55a. This construction is desirable in order to provide for the proper side spacing of the five pairs of contacts I55a since each is substantially wider than a type bar 45. The above arrangement is repeated for the next two adjacent orders of the same set of type bars, as best shown in Fig. 5.

A, similar construction is provided for the other set of type bars and the five pairs of controlling contacts are designated I55b in Fig. 10.

Obviously for the same denominational order the contacts I55a and I55b closed by type bars 45 of two sets will close at the same time if both type bars are set to the same positions to thus cause the energization of relay magnets I15 and HI (Fig. 10) controlled by contacts I554: and I55b, respectively, by a circuit now to be described with reference to Fig. 10.

This circuit is from line side 0i, a wire I12 leading to a wire I13 connecting one side of all the contacts I5Ba and I551), through either contacts to the related magnet I10 or "I, to a wire I14 connecting one side of all the magnets I10 and HI, and a wire I15 to line side IOI.

The relay magnet I'll when energized closes relay contacts l'llb (Fig. 10) and opens relay contacts Illa, while the energization of relay magnet I'II closes relay contacts I'Ilb and opens relay contacts Illa. Wires I'll and"! are connected to the blades of relay contacts "Oh and Illb and relay contacts I'Ilaand "la in such a manner that if both relay magnets I18 and I'll are energized simultaneously a circuit between wires I'll and I18 will be kept open, but if either magnet III or Ill is energized at a time dissimultaneous with the energization of the other magnet the circuit between wires I18 and I18 will be closed to cause the energization of the relay magnet I35. This circuit is from the line side 8|, a wire I88 to cam contacts CC-A, wire "8 to wire I13 and generally speaking through certain relay contacts which are shifted to closed position from open position while the other relay contacts remain closed, circuit breaker contacts I8I, relay magnet I35, and wire I82 to line side I8I. Circuit breaker contacts I8I are'closed by a dentated cam driven by the same shaft as cam 88, prevlously referred to.- Cam contacts (JO-4 are opened during the second closure of contacts I8I hence these contacts are ineffective as shown by dotted timing points in Fig. 11 for contacts I8 I.

Attention is directed to the timing diagram in Fig. 11 wherein it will be seen that the contacts I8I, I88a, I58b are timed to close A of a point later than the contacts 88 this lag being due to the fact that it takes a short time to close contacts I880 and I882; after the type bars are stopped in their travel. From Fig. 6 it will be appreciated that for a particular index point circuit breaker contacts 88 first close to cause the closure of the circuit to the magnet 58 to cause the stoppage of the type bar. After the energization of magnet 58 the type bar travels slightly until it is stopped. After the type bar is stopped the crosshead continues further in its travel to the left and a slight interval in time occurs before the related contacts I68a or i581: are closed.

Taking the case now for a particular denominational order, say the units, and considering the corresponding setting of the units type bars of the two sets it will be seen that if the card is perforated at the "3 index point position, for example, that contact points 88 close to cause the simultaneous energization of control magnets 58 and 58a. At three quarters of a point in the cycle later the contact points I58a and I 58b and circuit breaker contacts I8I close simultaneously to cause the concurrent energization of magnets I78 and I'll. Thus magnet I18 opens its contacts H811 and closes its contacts I18!) and magnet I'll opens its contacts "Ia and closes its contacts "lb and at the same time circuit breaker. contacts I8I close and cam contacts CC4 are closed thus keeping the circuit to magnet I 35 open.

However, if the type bar for one set should inadvertently be stopped at the 2 position, for example, its contacts I58a, will be closed to cause the energization of relay magnet I18 before relay magnet I'll is energized at the 3 index point position. At the time circuit breaker contacts I8I close at the 2 point (Fig. 11), relay magnet I18 will close its contacts IIIlb thus completing a circuit from theline side 8|, wire B88, cam contacts (JG-4 now closed, relay contacts I'I8b, to relay contacts i! la now closed, wire I119, circuit breaker contacts I8I now closed, relay magnet I35, wire I82 to the line side I8I.

Relay magnet I35 will now close relay contacts I355 to provide a stick circuit through cam contacts 00-5 to the line side 8i.

The energization of relay magnet I35 will open its relay contacts I3la thus opening the circuit to the motor M. The hammers II are adapted to be released .for striking the selected type 13 at the time in the cycle substantially at the time disclosed in Fig. 11, this occurring after all the type bars have been set. In practice it has been found that the energization of the relay magnet [35 will cause the storm-8e of the motor M prior to the time that the hammers are released to prevent improper pririting upon the perforated card.

The indication given by the stoppage of the machine with cards in the magazine 24 informs the operator that an improper printing operation has been prevented. With the machine stopped after partially completing its cycle of operation, the operator inserts a rod I83 (Fig. 1) in the machine frames to block the hammers 12 and prevent them from striking the type I3. The

1 machine is provided with a hand wheel I88 (Fig.

8) and by manually turning this the shafts I51 and I8 (Fig. 2) are turned so as to complete the cycle of machine operation to feed the card past the hammers 12. when the card has reached such a position the rod I83 can be removed and the machine restarted so as to complete printing operations on the remaining cards. The unprinted card can, of course, be located in the storage hopper or if the operator watches carefully it can be received by hand as it is fed by the last set of rollers 4|.

Obviously, since relay contacts I350 (Fig. 10) are opened the circuit to the adding control magnets I43 is opened during the time the machine is operated by the turning of the wheel I 84. Cam contacts CC--5 are closed during the remainder of the cycle to retain relay magnet I35 energized and thus relay contacts I35c are retained closed to prevent entry in the accumulator of the amount represented by the unprinted perforated card.

The type bars are restored at the end of the cycle of machine operation as previously stated by causing the cross bar I! to contact with shoulders I85 of the type bars 45 restoring the latter to their home position, as shown in Fig. 1. As the crosshead returns to home position a plate I88 contacts with the extremity of the levers I58 causing them to be rocked to disengage the tail I68 from the recess I6I, as best shown in Fig. 1. At the initial operation of the machine the crosshead carries the lever I58 out of engagement with the cam plate I permitting the lever I58 to be rocked so that the tail I68 occupies a position on top of the portion I 52 of the lever I58 as shown in Fig. 4, the parts now being in position to cause the closure of contacts IBM or I58b by the stoppage of the type bar, as previously explained.

Resetting of accumulator the motor M to operate.

Cam contacts CC-3 close a circuit from the line side 9 I, by wire I 28, the other reset key contacts Isl, cam contacts 00-3, to a reset clutch magnet I02, and to the line side IM to cause the energization of the reset clutch magnet I02.

Bhaft I has secured thereto a gear I00 (Fig. 8) adapted to drive a gear I04 through an idler gear I00. The gear I04 has attached thereto a clutch disk I00 (Fig. 9) both the clutch disk and gear being loosely mounted on a shaft Il'l. Attached to the shaft Ill-is an arm I00 carrying a clutch pawl I00 and to said shaft there is secured a gear 200 meshing with a gear 2" attached to the reset shaft 202 of the accumulator.

Obviously, the clutch disk continually rotates and the cam .contacts -CC-l are timed to close the circuit to the reset clutch magnet I02 at such time that the clutch notch 20! of the clutch disk is registered with the clutch tooth 204 of the clutch pawl I". The energization of the reset clutch magnet I02 attracts its armature 200 to release the clutch pawl I to cause the clutch engagement to drive the reset shaft 202. The manner of resetting is very well known in the art and for more complete details of construction and operation reference may be had to the patent to C. D. Lake, No. 1,600,414.

General summary of operation In order that the operation of the machine as a whole may be better understood, a brief rsum of its operation will now be given.

The operation of the machine is initiated by the depression of the Start key which closes ..its contacts I 22, referring to Fig. 11, which will effect the energization of the motor control relay I24 and also close the circuit of the motor M. The operation of the motor M will cause the drive shaft II to be rotated and cam I0 will thereupon be rotated to rock shaft 2| (Fig. 2). The rocking of the shaft 2i, referring to Fig. 1, will reciprocate the card picker 20 to thereby advance a card from the magazine 24 to the first set of feeding rollers 80 (Fig. 1). As the card emerges from the first set of feeding rollers 30, it will be disposed between a contact roller I2 and the analyzing brushes ii and the card perforations will be analyzed as the card is fed past the brushes 3|. During the analysis of the card perforations, the crosshead 41 will be shifted to cause the movement of the type bars 45 synchronously with the analysis of the perforations. when the analyzing brush encounters a perforation, the related type bar 4! is stopped in its movement to thereby cause, for a plurality of type bars, their digit representing settings in order to bring type 13 representing such digits to the printing line. The setting of each of the type bars 40 is effected by the energization of a printing control magnet at a difl'erential time. After the type bars have been set to represent the digits corresponding to the perforations analyzed, they remain in diflerential adjusted position and during this time, the card is being fed from ,the analyzing .brushes Si by the second set of feeding rollers 30 to convey the card between rollers 03 and 34 and the latter feed the card so that the leading marginal edge of the card is cooperatively related with a platen 0|. When this relationship is obtained, the rollers 03 and 04 are stopped in their rotation, thereby retaining the card in cooperation with the platen II. The hammers I2 (Fig. 1) are now released to eflect the printing from the selected type II. Thereafter the rotation of rollers 00 and 04 is resumed, causing the feeding of the card further to the right, as viewed in Fig. 2, away from the platen 0| so that by a series of rollers 4|, the

printed card may be directly fed to the storage receptacle--40. The type bars are, nevertheless. retained in their differential adjusted position in order that a read-out device carried thereby may eil'ect the entry into an accumulator of the amount printed on the card.

The electrical circuits for effecting the energization of the type bar control magnets 00 are shown in Fig. 10 and referring to the wiring diagram, the circuit extends from the line side 0| through impulse distributor contacts 00, relay contacts I201: now closed, to the contact roller 02. Upon the-presence of a perforation, contact is made between an analyzing brush II and the contact roller 32, thereby effecting the energization of a related magnet 50, the circuits for the magnets 50 being closed through cam contact c-l which from Fig. 11, it will be seen, is closed during the time that the perforations are analyzed. 1

By plug connections I30, the analyzing brushes 3| are adapted to effect the energization of a supplemental set of magnets 50a to cause the setting of a second set of type bars. sets of type bars 45 controlled by the sets of magnets 50 and 50a are adapted to effect multiple printing on the card, as shown in Fig. 7.

In order to effect the entry of the amounts represented by the card, one set of type bars 45 is provided with contact making elements I40 which are differentially positioned to make contact with digit representing bars I 42 (Fig. 10), the elements I40 and bars I42 providing an amount read-out device. The'type bars remain in their diiferentially adjusted position during approximately the second half of the operating cycle, as is shown in the timing diagram in Fig. 1l,and with the contact elements I40 in their differentially adjustedposition, an emitter Em will read out the digit settings of the contact elements I40 during the second half of the operating cycle to eflect the energization of accumulator control magnets I43 (see Fig. 8) at difl'erential times, thereby causing the entry of an amount in the accumulator.

After the accumulator entry operation and during the final part of the operating cycle, the crosshead 41 (Fig. l) is returned to its normal position, thereby restoring both sets of type bars to their normal positions.

The present machine also includes a checking device whereby the positions .of the two sets of type bars are compared and the amount is entered in the accumulator in accordance with the result of the comparing operation. The electrical comparing means includes two sets of contacts, contacts I080 being closed by one set of type bars and contacts "50b being closed by the other set of type bars. Referring to Fig. 10, upon the simultaneous closure of contacts I60a and I00b for each denominational order, related magnets I10 and III will be energized. Referring to the top oi Fig. 10 each of the last mentioned magnets will effect the closure of the related contacts I 10b and "lb and at the same time, when the type bars are differentially stopped at the same position in each denominational order. Upon the setting of the two sets of type bars in corresponding positions for all of the denominational orders, magnet I35 will remain deenergized. In the event that in a particular denominational order the type bars are not set to the same digit The two checking device is operated during the first half of the operating cycle, during which. time the two sets of type bars are set to digit representing positions and in the event that one of the type bars of one set is improperly adjusted, the relay magnet I" will be energized to cause the opening of contacts "to (Fig. This will open the circuit to the emitter Em and even though the latter operates during the second half of the operating cycle, the accumulator entry operation will not be effected.

In order that the operator will know of the improper operation, it is preferable upon this detection to cause the machine to stop in its operation. In the present machine this is preferably effected by the opening of contacts "to which, as shown in Fig. 10, open the stick circuit of the motor control relay I24 and the motor M. The latter will stop in its operation and in practice the motor will be stopped prior to the time that the hammers are'released in order to prevent the improper printing upon the perforated card.

After a series of cards has been printed and the amounts are entered in the accumulator, the latter may be reset by the depression of a reset key I90. This will cause an operation of. the motor M and at the same time effect the energization of the reset clutch magnet I92 and the latter will cause the resetting of the accumulator in a manner which is well known in the art and which is fully shown and described in the patent to C. D. Lake, No. 1,600,414.

While there has been shown and described and pointed out the fundamental novel features of the invention as applied to a single modification it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention. It is the intention, therefore, to be limited only as indicated by the scope of the following claims.

What is claimed is:

1. In a machine of the class described provided with an accumulator, the combination of an entry controlling means, two sets of type bars, type bar positioning means, supplemental accumulator entry control means settable for controlling the entry to be effected in said accumulator, means under control of the first named entry controlling means to control said type bar positioning means to cause the two sets of type bars to be differentially positioned to select amount type for printing and to cause the setting of said supplemental entry control means to determine the accumulator entry, comparing means controlling by, said sets of type bars for comparing the positioning of the two sets of type bars, means to render said supplemental entry control means ineffective for controlling an accumulator entry, and means controlled by said comparing means for causing said last named means to be effective to thereby prevent an accumulator entry when the two sets of type bars are positioned unlike.

2. In a machine of the class described having an accumulator, the combination of two sets of type bars, respective type bar positioning means therefor, entry controlling means, means controlled by the entry controlling means to control the operation of one type bar positioning means to effect the differential positioning of the 'related set of type bars to select amount representing type for printing, an amount read-out means for controlling the entry in said accumu' lator, means under control of the entry controlling means to control the operation of said other type bar positioning means to effect the position vent an accumulator entry when the two sets of type bars are positioned unlike to effect the printing of different amounts.

3. In a machine of the class described provided with an accumulator, the combination of a movable crosshead, two sets of type bars moved by said crosshead, entry controlling means, an amount read-out means for controlling an accumulator entry, means controlled by said entry controlling means for causing the type bars in their movement effected by said crosshead to be set at differential positions to select type for printing duplicate amounts and for causing said read-out means to represent the same amount which is to be entered in said accumulator, devices for causing the read-out means to be normally ineffective for controlling an accumulator entry, said devices being controlled in their operation by said crosshead to cause the read-out means to be effective for controlling an accumulator entry after the crosshead has completed its movement and after said sets of type bars are at the aforesaid differential positions, comparing means controlled by saidsets of type bars for comparing the positioning of the two sets of type bars; and means controlled by said comparing means for causing said read-out means to be ineffective, when the two sets of type bars are positioned unlike to effect the printing of different amounts, irrespective of the operation of said devices by the crosshead to cause the readout means to be effective.

4. In a machine of the class described provided with an accumulator, the combination of an entry controlling means, two sets of type bars, type bar positioning means, an amount read-out means for controlling the entry to be effected in said accumulator, means under control of the entry controlling means to control said type bar positioning means to effect the differential positioning of said sets of type bars to select amount type for printing and to cause a setting of said read-out means to determine the accumulator entry, comparing means controlled by said sets of type bars for comparing the positioning of the two sets of type bars, means to render said readout means ineffective for an accumulator entry operation, and means controlled by said comparing means for causing said last named means to render the read-out means ineffective and thereby prevent an accumulator entry when the two sets of type bars are positioned unlike.

5. In a machine of the class described, the

combination with two sets of positionable type bars, of entry controlling means, respective type bar positioning means for said sets of type bars,

type for printing an amount and for positioning controlling means to control the other type bar positioning means to differentially position the other set of type bars for selecting type for printing a duplicate amount, means cooperating with said read-out device for reading out the amount represented thereby to control an accumulator entry after said sets of type bars have been positioned for printing, comparing means controlled by said sets of type bars for comparing the positioning or the two sets 01' type bars, and means controlled by said comparing means to render the reading out means ineii'ective when the two sets of type bars are positioned unlike to eflect the printing of diilerent amounts.

6. In a cyclically operable machine for printing upon a perforated record the amount represented by perforations therein and accumulating such amounts in an accumulator, the combination of a printing means comprising type bar positioning means for two sets 01' positionable type bars and means to effect printing from said type bars on the record, settable accumulator amount entry controlling means, record analyzing means, means under control of said analyzing means to control the operation of the type bar positioning means to cause the diii'erential positioning of the sets oi type bars for printing in duplicate an amount on the record and for setting said accumulator control means to control the entry of the amount, in said accumulator, devices for terminating the operation of said printing means and for rendering said accumulator entry control means ineffective in the cycle of operation said type bars are positioned, comparing means controlled by said sets of type bars for comparing the positioning of said sets of type bars, and means controlled by said comparing means to render said devices eilective when the two sets 01 type bars are positioned unlike to eil'ect the printing on the record of diflerent amounts, to thereby prevent the entry in the cycle of operation the type bars are positioned unlike, and to terminate the operation of the printing means.

7. In a cyclically operable machine for printing upon successively fed perforated records the amounts represented thereby and for accumulating said amounts in an accumulator and which is provided with record feeding means for successively feeding the records for printing operations thereon, the combination of a printing means comprising type bar positioning means for two sets oi. positionable type bars and means to eil'ect printing from said type bars on the record, settable accumulator amount entry controlling means, record analyzing means, means under control of said analyzing means to control the operation 0! the type bar positioning means to cause the diilerentia'l positioning of the sets or type bars for printing in duplicate an amount on the record and for setting said accumulator control means to control the entry of the amount in said accumulator, devices for terminating the operation of said record feeding means and said printing means and for rendering said accumuiator entry control means ineffective in the cycle oi operation said type bars are positioned, comparing means controlled by said sets 0! type bars for comparing the position of said. sets 01' type bars with one another, and means controlled by said comparing means to render said devices eiieotive when the two sets of type bars are positioned unlike to eii'ect the printing on the record 0! unlike amounts to thereby prevent the entry in the cycle of operation the type bars are positioned unlike and to terminate the operation of the record ieedlng means and printing means.

CLAIR D. LAKE.

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