US2111121A - Printing mechanism - Google Patents

Description

March 15, 1938. I A w M S 2,111,121

' PRINTING MECHANISM Filed Dec. 22, 1936 ll Sheets-Sheet l IN VEN TOR.

' ATTORNEY March 15, 1938. w, s 2,111,121

PRINTING MECHANISM Filed Dec. 22, 1936 ll Sheets-Sheet 2 BY .7 I

' A TTORNEY March 15, 1938.. A.IW. MILLS 2,111,121

PRINTING MECHANISM Filed Dec. 22, 1936 11 Sheets-Sheet 5 INVENTOR.

ATTORNEY March 15, 1938. A. w. MILLS 2,111,121

PRINTING MECHANISM Filed Dec. 22, 1936 11 Sheets-Sheet 4 I00 9 6 Q ,gg

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207 IN V EN TOR.

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A TTORNEY March 15, 1938. A. w. MILLS ,11

PRINTING MECHANISM I Filed Dec. 22, 1936 11 Sheets-Sheet 5 IN VEN TOR.

M411. g BY A TTORNEY March 15, 1938. A. w. MILLS PRINTING MECHANISM Filed Dec. 22, 1956 ll Sheets-Sheet 6 NE AY I I IIYVENTOR.

A TTORNEY A. W. MILLS PRINTING MECHANISM ll Sheets-Sheet '7 m at I I I.

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PRINTING MECHANISM Filed Dec. 22, 1936 ll SheetsSheet 8 FIGM' IN V EN TOR.

A TTORNEY 4 arch 15, 1938.

A. W. MILLS PRINTING MECHANISM Filed Dec. 22, 1936 11 Sheets-Sheet 9 W 7&4;

ATTORNEY IN V EN TOR.

15, 1938. A. w. MILLS 2,111,121

PRINTING MECHANISM Filed Dec. 22, 1936 ll Sheets-Sheet lO ONE WAY ROUNDTRIP V2 FARE SPECEXC DESTINATION AMOUNT IN V EN TORS ATTORNEY March 15, 1938. A. w. MILLS 2,111,121

PRINTING MECHANISM Filed Dec. 22, 1956 ll Sheets-Sheet ll 15 g f MU JU' INVENTOR.

A TTORNEY Patented Mar. 15, 1938 1 UNITED STATES PATENT OFFICE 2,111,121 PRINTING MECHANISM Albert W. Mills, Endicott, N. Y., assignor to International Business Machines Corporation, New York, N.,,Y., a corporation of New York Application December 22, 1936, Serial No. 117,139 14 Clalms- (Cl. 101-416) This invention relates to printing machines an accumulating mechanism is provided into and more particularly to a machine for printing which all the prices are entered so that a prorailroad tickets containing variable data such gressive total is available and which may be as destination, fare, serial number, etc. utilized in checking the total amount of busi- The principal object of the invention is to ness transacted in the issuance of tickets from 5 provide a simplified ticket, issuing machine a particular machine.

wherein various predetermined distinctive card Various other objects and advantages of the tickets are produced from a. single strip by the invention will be obvious fromthe following paroperation of a single manually operable key. ticular description of one form of mechanism A more specific object of the invention is to embodying the invention or from an inspection 10 provide an improved printing mechanism which of the accompanying drawings; and the invenincludes a plurality of closely spaced type wheels tion also constitutes certain new and useful feain which the type in alternate wheels are cirtures of construction and combination of parts 1 cumferentially offset so that printing from a type hereinafter set forth and claimed.

in any wheel will not cause fragmentary print- In the drawings: l5

ing from type on adjoining wheels, which might Fig. 1 is a plan view of the machine. occur with other forms of type wheels. Fig. 2 is a detail in isometric of the ticket tape A further object is to provide a printing wheel Y alining device. which is rapidly advanced step by step under Fig. 3 is an elevation looking from the front control of a Geneva. mechanism and from which in Fig. -1, showing the general arrangement of an impression is taken by a timed power actuated the machine. printing hammer during any selected interval of Fig. 4 is a central section looking in the same rest} direction as Fig. 3, the view being taken sub- In carrying out the objects of the invention, stantially along lines 4-4 of Fig. l.

5 a roll of blank material having the width of Fig. 5 is a central section through the printthe tickets to be prepared is threaded through ing and adding mechanism, the section being the machine. This material may be provided taken along the lines 5-5 of Fig. 4. a with the usual protective tinting, if desired, and Figs. 5a and 5b are detail views of the auxis notched'along the edges at intervals repreiliary printing mechanism.

-3() senting ticket lengths. In passing through the Fig. 6 is a section taken along tlie lines 6-45 machine the opposite sides of the strip are printof Fig. 4, showing the gear connections and ed upon by suitably engraved rollers from which operating cams. v information common to all tickets to be issued Fig. '7 is a detail of the type wheels. is printed. After passing the printing rollers, Fig. 8 is a section taken on line 8-43 of Fig. 7.

the strip is brought to a serial numbering station Fig. 9 is a detail of the main clutch of the 35 and a dating station, after which it is advanced machine.

to a printing position adjacent to a group of Fig. 10 is a plan view of several of the operatconstantly rotating type wheels from which the ing keys. destination may be selectively printed;v a'con-I' Fig. 11 is a detail showing one. of the key stantly advancing type wheel. from which the stems. 40 class of ticket is printed; and a group of dif- Fig. 12 is an elevation of the key mechanism, ferentially positionable type sectors frornfwhich showing the circuit selecting devices. the fare or price of ticket is selectively printed. Fig. 13 is a sectional view taken along the lines A number of operatingkeysare -provided in 'acig-ig of Fig. 12.

cordance with the number of destinations to be Fig. 14 is a timing diagram of the machine. 45

taken care of as well as the different classes of Fig. 15 is an enlarged detail of a section. of 0 tickets. Operation of any selected key will cause the type wheel showing the ofisetting of the the automatic printing upon theticket of the alternate alphabetic character printing wheels.

corresponding destination, fare, and class of Fig. 16 is a specimen of a ticket showing one ticket, and its severance from the strip of record side thereof. 50

material. Counters are provided in juxtaposi- Fig. 1'? is a view similar to Fig. 16, showing tion to the various keys which record the numb-er the opposite side of the ticket. of operations of each key, thus aifording an in- Fig. 18 is a diagrammatic view showing the dication of the number of tickets of that class selective arrangement of the contact devices on and for that destination issued. In addition, the key stems related to a particular key. 55

Fig. 19 is a wiring diagram of the electric circuits of the machine.

Fig. 20 is a section taken along lines 2|l-20 of Fig. 4, showing the operating mechanism for the serial numbering device.

Fig. 21 is a diagrammatic view showing the relative position of the tape when the destination is printed thereon.

Fig. 22 shows the position of the tape when the tickets are serially numbered and dated.

Fig. 23 shows the position of the tape after a ticket has been fully printed.

Ticket feeding mechanism The mechanism by means of which the ticket material is advanced from the supply roll to and through the machine to the point of cut-off willfirst be described, after which the mechanism for making impressions on the tape at various points along its path of travel will be explained in detail.

Referring to Fig. 4, the ticket tape I0 is fed from a spool II through an arcuate guide l2. The tape is provided with notches I3 (as shown in Figs. 16 and 17), disposed along the edges at regularly spaced intervals, the distance between any two successive notches being the length of the ticket to be prepared. From the guide I2 the tape I8 passes pairs of rolls l4 and IS in succession, thence to printing platens I6 and I1 to the position shown in Fig. 21 where' the leading edge is at the point of cut-01f designated I8. This position of the tape is also shown in Fig. 1 and in Fig. 21 the short vertical lines crossing the tape I0 indicate the limits of the successive tickets. With the tape in the position of Fig. 21, printing of the destination, price, and classification is effected, after which the ticket is retracted to the position of Fig. 22 wherein the date is printed on the ticket at platen l1. At the same time, the serial number is printed at platen I6 on the .next following ticket. Thereafter, the tape is moved. to the position of Fig. 23 where the ticket is cut off at the point I8. The mechanism for shifting the tape to these various printing positions will now be described in greater detail.

Referring to Figs. 6 and 9, a pulley I9 is driven from any suitable source of power, such as an electric motor (not shown), by means of a belt 20. Integral with the pulley is a clutch driving element 2|, which, with the pulley, is loosely mounted on shaft 22. When a ticket is to be printed, clutch magnets 23 are energized to attract armature latch 24 and permit spring-pressed dog 25, pivoted to arm'26, to engage the driving element 2|. Arm 26 is secured to the shaft 22 and, accordingly, the shaft will now be rotated. As will be explained hereinafter in connection with the circuit diagram, the energization of the magnet 23 is not maintained so that shortly after energization it releases its armature latch 24, permitting the arm to drop back into the path of the dog 25 so that upon completing a single revolution of shaft 22, the parts become disengaged and resume their normal relationship, as in Fig. 9.

Referring now to Fig. 1, the shaft 22 carries a bevel gear 21 meshing with a similar gear 28 on a shaft 29 (see also Fig. 3). The shaft 29 carries a gear 30, which meshes with a gear 3|, which in turn causes operation of shafts |5a and Ma upon which the lower printing wheels I5 and I4, respectively, are mounted through the medium of gears generally designated 32. v Gear 3| also drives a gear 33 which in turn, through the medium of gearing 35, drives the shafts |5b and I4!) upon which the upper printing rollers I5 and I4, respectively are mounted. The shaft |4b carries a gear 35 which, through a pinion 36, drives the shaft upon which inking roller 3'! (Figs. 1 and 4) is mounted. A similar inking roller 38 is provided for the printing rollers I5 and may be driven in a similar manner.

Between the arcuate guide I2 and shaft I411 is a rod 39 (see also Fig. 2). Secured to the rod are members 40 which are straddled by fingers 4| which are pivoted to the members 40 at their lower ends and are normally urged apart by a spring 42. The upper extremities of fingers 4| are provided with hooks 43 which are adapted to engage in the notches |3 in the tape to effect accurate alinement of the same. Pivoted to the frame of the machine (see Fig. 1) is a pair of fingers 44 pivoted at 45 and provided with a pin and slot connection 46 so that rotation of one of the fingers will cause concurrent rotation in the opposite direction of the other finger. When the fingers are moved together, they will urge hooks 43 into engagement with the edge of the tape and when they are moved apart, the hooks 43 are free to move away from the edges of the tape under the influence of the spring 42. Integral with one of the arms 44 is an arm 41 connected by a link 48 to a bell crank 49 (see Fig. 4) whose one arm carries a roller in engagement with a cam 50 carried by shaft I4a. On the same shaft is a cam 5| which cooperates with a follower arm 52 secured to the shaft 39. The operation is such that after printing of the destination, price, and classification has been effected on the leading ticket section, cam 50 operates to cause fingers 4| to engage in the notches I3 standing opposite the fingers and thereafter cam 5| will rock shaft 39 counterclockwise as viewed in Figs. 4 and 22, whereby the tape will be retracted from the position of Fig. 1 to that of Fig. 22. Thereafter, the fingers 4| are moved away from the tape and returned to their initial position.

I During the movement of the tape I0 toward the left, under control of the fingers 4|, the tape is free of the pairs of rollers I4 and I5. As is shown in Fig. 21, the upper roller I4 is provided with type on slightly more than half its circumference, this type being arranged to efiect the printing shown in Fig. 16. The lower printing roller I5 carries the type for printing the face of the ticket as in Fig. 17, with the exception of the variable information. In Fig 21, the upper roller I4 and the lower roller |5 have just advanced the tape to proper position for printing the destination and at this time the raised type move out of engagement with the tape so that there is now no contact between the rollers. During the interval that the type rotates from the position of Fig. 21 to that in Fig. 22, the classification data are printed and the tape is retracted to receive the number and date printing, after which time the type faces will arrive in the position of Fig. 22

and again pick up the tape to advance it the distance necessary to eject the completed ticket.

In Fig. 20 is shown a usual numbering device, indicated generally at 53, which is reciprocal in guides 54 and has the usual plunger 55 in engagement with a roller carried by a bell crank 56 which has link connection 51 with a follower arm 58 which is operated by a cam 59 carried on shaft 22 (see also Fig. 1). A similar cam 60, also carried on shaft 22, serves to operate the dating deand link connection Ill to a follower arm 92 which vice which cooperates with platen IlI. At point l8 there is provided a knife 6I (see Figs. 1 and 5) which is pivoted at 62 and has connection with a bell crank 63 which, in turn, is connected by a link 64 to a bell crank follower arm 65 operated by a cam carried by shaft I511. At the proper time in the cycle of operations, the knife GI is rocked clockwise (as viewed in Fig. 5) to shear the completed ticket from the following portion of the tape.

Destination printing mechanism Printing of the destination is effected on the ticket by means of type carried by a constantly rotating set of wheels. As particular type characters pass printing position, printing hammers are rapidly impelled against the type to take an impression therefrom without interrupting the movement of the-type wheel. In Fig. 7 is shown the type wheel from whichthe impressions are taken. These type wheels are .of three kinds. The four to the right, designated 61, are employed to'print the price. The single wheel on the left, designated 68, is employed to print the classification;' and the group of fourteen wheels 69 are employed to print the destination. The last set of wheels will now be described, after which the'other two types will be explained;

also Fig. 6) The shaft carries a pinion H which, through an idler I2, is driven by gear I3 carried by the shaft 22. The type wheels 68 are thus driven at a rapid rate, completing a full revolution during somewhat less than half a revolution of shaft 22.

Referring now to Fig. 5, there is provided. a printing hammer 14 for each of the type wheels 6t and one also for each of the type wheels 61. A special hammer Ila is provided for the type wheel 68 which differs from the hammer ll in that it has a longer striking face. ,All of the hammers are freely pivoted at 15 and normally held in the position shown in Fig. 5 by springs I6. Mounted on a shaft 11 which is driven from shaft IE through the train of gearing generally designated I8 are ratchet-shaped driving wheels IQ of which there is one provided for each type wheel. In line with each wheel I9 is a, hook 80 pivoted at its upper end to a lever BI and having its free end spring-presssed against a by-pass latch 82 of a pivoted member 83. The member 83 is springurged in a clockwise direction and normally held against such movement by a latch at which has link connection 85 with armature 85 of a magnet 8-1. Energization of magnet M will attract its armature 88 drawing link 85 downwardly to rock latch 84 counterclockwiseand release lever $3. The lever will thereupon rock hook at counterclockwise about its pivot causing the tooth thereon to move into the path of the teeth of the driving ratchet I9. The driving teeth will cause rapid downward movement of hook 8t and through lever SI the associated hammer it will be given a rapid,

counterclockwise propulsion against the type wheel. Near the end of the downward movement of hook 86 its free end will strike the fixed cam-' ming surface 88 and will disengage it from the driving wheel l9.

The particular character to be printed from any wheel is determined by the timing of the operation of the printing hammers It and the circuits and mechanism for effecting this timing will be explained in connection with the circuit diagram. The levers 83 are restored by means of a bail 89 pivoted at 90 (see Fig. 6). The shaft 96 has lever is operated by a cam 93 on shaft 22. The latches 84 are restored by-means of a bail 94 secured to a shaft 95 which in Fig. 6 has lever and link connection 91 to a follower 98 which is operated by a cam 99 also secured to shaft 22.

Price printing wheels The price printing wheels 61 of Fig. '7 are loosely mounted on the shaft Ill and are sector-shaped as shown in Fig. 5, Integral with each sector til is a pinion IIIIl which meshes with rack teeth in a vertical link It I. The lower extremity of each link IGI is also provided with rack teeth meshing with a toothed segment I02 which is secured to a pivoted plate I03 which is normally urged in a clockwise direction by a spring IM. A bail I05, secured to shaft I06, normally holds the plate in the position shown and is operated to cause rotation of the price wheels 6'! through mechanism which comprises a spring-pressed arm Ill'I secured to shaft IIJB (Fig. 6), which arm has link connection I08 to an arm I09 secured .to a shaft IIII. The shaft IIO carriesa follower arm III cooperating with acam i I2 carried by shaft 22. g

. connections :85 from the printing magnets associated with the price wheels also have piv- 1 ot d on ction th' bell crank levers H3 which The wheels 69 are secured upon a shaft I (see 7 e n in Fig. 5, .the trailing high portion of the same engages the latch II to rock it into latching engagement with the bell crank I I 3. With the construction described, the teeth I I6 successively pass the engaging toe of latch II5 as corresponding type elements on the price wheels 51 pass printing position. Energization of an associated magnet 81 will rock bell crank II3 to release the latch II5 which will thereupon engage one of the teeth I I6, stopping the type wheel with a selected type in printing position. At the same time, the related link 85 will trip the printinghammer as hereinabove described so that stopping of the wheel and tripping of the hammer are concurrent operations. The reason for constructing the price printing wheels'in the manner described and providing mechanism therefor different from that for printing the destination is to enable an accumulation to be made of the prices so that the total amount of money involved in the several transactions may be accumulated. This accumulating mechanism will be described later.

Classification printing The classification wheel 68 (Fig. 8) is provided with nine printing faces and as these faces are of considerably greater length than the faces of the type from which printing is effected in flight, it is desirable that an impression be taken with the .wheel at rest. For this reason, a form of Geneva drive is provided which includes a star wheel EI'I which is integral with Wheel 68 and both are freely mounted on the shaft I0. Cooperating with the wheel II'l is a driving pin I I8 carried by an arm M9 on a rod I20. The other end of the rod I20 carries a pinion IZI (see Fig. 6) Which meshes with a. gear I22 driven from the chain of gearing 18 so that the wheel iifi-advances constantly with a step-by-step movement as the destination wheels 69 advance with a continuous movement. The printing hammer Ma for the wheel 63 is tripped in exactly the same manner as the hammers I l and the timing is arranged so that the hammer is tripped during the period when the wheel is at rest, the particular face printed from depending on the time at which the hammer is tripped.

Restoring means is provided for the latches I I 3 which comprises a bail I23 (Fig. 5) carried by shaft I24 (Fig. 6) which has lever and link connection I26 with a follower I21 operated by a cam I28 carried by shaft 22.

Extending over the printing wheels is an inking ribbon I29 which is fed from a spool I30 to a pair of. feeding rollers I3I, the larger of which has associated therewith a ratchet and pawl mechanism generally designated I32, which are operated through a link I33 connected at its lower extremity to the bail I05 so that for each operation of the bail the ribbon is slightly advanced.

Key mechanism The selecting keys are shown in Figs. 10, 12, and'l3. These keys constitute levers I34 which are pivoted on rods I35. Connected to each key lever I34 at I36 is a bar I31 normally urged upwardly by a spring I38. Each key lever I34 has pin and slot connection I39 with the operating arm I40 of a counter mechanism I4! of the well known Veeder type so that each key lever operation will be separately counted. In Fig. 10, each key lever I34 and its corresponding counter I4I has located adjacent thereto an indicating marker I42 which designates the destination,

price, and classification assigned to the particular key. Thus, the lowermost left hand marker I42 in Fig. 10 indicates that its key lever I34 controls the preparation of a one way ticket to Albany, whose price is $3.45.

Cooperating with all of the key levers I34 is a horizontally slidable plate I43 having notches I44 through which the key levers I34 extend. Extending into each notch is a cam latch I45 against which the operated key lever acts to cause the plate I43 to be shifted toward the left as viewed in Fig. 10. The plate has connection with a link I46 which is provided with an extension I41 (see also Fig. 12) which operates a pair of contacts I48. As the plate I43 is moved toward the left as a consequence of the operation of one of the key levers, the extension I41 will close contacts I48. These contacts control the initiation of. a cycle of operations of the machine during which the ticket is prepared and ejected. Secured to each of the bars I31 is a plurality of contact plates I50 which are suitably insulated from one another and from the bar I31 (see Fig. 11) The number of plates I50 connected to each bar I31 is dependent upon the number of letters in the destination and the number of figures in the price to be printed under control of the related key. For example, the bar I31 associated with the Albany key has plates I50 secured thereto which are separately shown in Fig. 18. The left hand plate will control the printing of the designation One way; the next six plates will control the printing of the destination Albany; the next one will control the printing of the dollar sign; and the last three will control the printing of the digits of the amount. Each of the plates I50 has a pair of steps I5I located at various levels in accordance with the character to be' printed. These steps are arranged, when the supporting bar I31 is lowered, to complete electrical connections to the printing magnets to select the various characters at the proper time in the operation of the machine. Extending across all of the bars I 31 in a single row are pairs of springs I52 which are anchored at their extremities to plug sockets I53 and I54. These springs lie beneath the steps I5I and are normally out of contact therewith. When any bar I31 is shifted downwardly, all of the related steps I5I will make electrical contact with the related springs I52 so that each plate will connect a spring I52 on one side of the bar with a spring I52 on the opposite side, which is either in the same or a different horizontal plane.

The circuit connections established may best be understood from the circuit diagram in Fig. 19 wherein the springs I52 on one side of the bars are shown as horizontal lines extending between the sockets I53 and I54. and the wires on the opposite side are shown as a separate set directly below. The plates I50 are represented as vertical lines making connection between one of the upper set of springs I52 and one of the springs I52 of the lower set. Each of. the springs I52 of the lower set is' connected by a wire I55 to one of the printing magnets 81, the uppermost spring being connected to the printing magnet 81 which controls the printing of the classification data derived from the printing wheels 68 of Fig. '1. The lowermost four springs are connected to the magnets 81 which control the positioning of the numerical type sectors 61 while the intervening group control the magnets which print from the constantly rotating type wheels 69. The connections to this group of springs I52 are made in accordance with the positions on the ticket in which it is desired to have the destination and amounts appear. The upper group of springs I52 have their sockets I54 connected by wires I56 to the segments I51 of a commutator device shown in Fig. 5. There are two lines of segments I51 and alongside each line is a common conducting strip I58. A pair of connecting brushes I59 is provided to connect the segments I51 in succession with the common conductor I 58 of. one set and a brush I59A efiects similar connection between the second set and its common conductor I58. These brushes are carried by and insulated from an arm I 60 carried by a shaft 22. The timing of the operation is such that the brushes I59A and I59B make contact with the segments successively as the type on the various printing wheels arrive at the printing line in the order designated in Fig. 19 opposite the springs I52. The tracing of a specific circuit will make this clear.

With the plates I50 making electrical connection between the sets of springs I52 as shown, a circuit will be completed when the brush I59A contacts the first segment I51, which is traceable as follows: from the negative side of line IGI, to left hand conductor I58, brush I59A, uppermost segment I51, wire I56, socket I54, to the left hand plate I50, thence to the uppermost spring I52 and the uppermost printing magnet 81 through a wire I62, cam controlled contacts I63, to positive side of line I64. This circuit is completed as the classification wheel 68 presents the designation One way to the printing line and this designation will be printed on the ticket. A second circuit is also completed concurrently which extends from the uppermost wire I 52, to the second plate I50, the second spring I52, to the second printing magnet 81, a wire I65, a pair of cam controlled contacts I66, to line I64. The parts are so timed that the type element for printing the letter A is at the printing line at this time and the character A will consequently be printed. It will be observed that the fifth plate I50 from the left is also connected to the uppermost spring I52 and a further circuit will also be completed through this plate to the fifth spring I52 to energize its related printing magnet 81 to print the latter A in this position also. When the brush has advanced to the second segment I51, a circuit is completed to print the letter B in its proper position on the ticket. In this manner, as the brushes I59A and I59B advance, the characters will be printed in the order in which they are connected to the springs I52; thus, the digits 3, 4, and 5 of the price will be printed next, and the L and N in order, and near the end of the cycle, the letter Y will be printed, followed by the printing of the dollar sign. In a single revolution of the printing wheels, therefore, the various characters will be printed as they pass through the printing position.

Iteferring now to Fig. 15, wherein a section of the type wheel group is shown, it will be observed that alternate ones of the wheels 69 are displaced a half step with respect to the rest of the wheels. to avoid so-called' shadow printing, that is, the printing of adjacent portions of characters from the adjoining type wheels together with the printing of the selectedcharacter, and permits the use of the largest possible characters in a smaller space. In order to print correctly from these offset type, it is necessary to delay the timing of the wheels whose characters are set back a half step an equivalent amount, and it is for this reason that the two emitter brushes I59A and I59B are provided.

The brush I59A controls the completion of circuits through the classification and amount printing magnets corresponding to the even numbered type wheels when counted from the left in Fig.

40 15. These are the printing magnets which are connected to the wire I62, and the contacts I63 in series with thesemagnets are timed to be open when brush I59B makes connection with its segments I51, and to be closed when brush I59A contacts its segments. The remaining printing magnets 81 are connected to the wire I65 and the contacts I66 which are timed to be closed only when the brush I593 is in contact with its segments and to be open when the brush I59A makes connection. Thus, for the printing of the classification One way, the circuit is controlled through the brushes I59A and the contacts I63.. At the same instant, brushes I59A also complete the circuit through the fifth plate I50 which prints the second A in the word Albany. The open condition, of the contacts I66 at this moment prevents the completion of the circuit for the first letter A in this word. This circuit is completed a half step later when 66 the brush I59B contacts the first segment I51 and at this time the contacts I63 are open and contacts I66 are closed, permitting the comple tion of the circuit through wire I and printing of the first letter A from a type wheel whose 65 characters are retarded.

In the diagram of Fig. 19, the brushes I59A and i593 are shown as being of the same length and their related segments I51 are offset a half In the actual construction, for purposes 70 of uniformity, the segments of the two sets are actually side by side, but the brushes I59B (see Fig. 5) are adjusted to make contact a half step later than the brushes I59A.

Referring to Fig. 6, the shaft 90 has secured thereto an arm I61 which, through a link I68,

, 5 operates a bell crank I69 (Fig. 3) to draw the link I06 toward the left to release the key lever I34 which has been depressed. This takes place near. the end of the cycle of operations so that the parts may return to their normal position. 5 A hand leverI10 is provided (Fig. 6) which lies over a pin MI in lever I61 so that the-same may be operated manuall A units counter I12 is to the link I08 so that each operation of the 10 machine may be counted and, since for each operation a ticket must be issued,'the counter indicates the totalnumber of tickets prepared and ejected.

Referring to Fig. 19, the closure of contacts 1 I48 due to the operation of one of the key levers I34 will complete a circuit from line I66, contacts I56, a relay I16, to line I6I. The relay closes its contacts I14a which completes the circlutch magnet 23 and 20 cycle of operations in the machine, toward the end of which the contacts I68 are mechanically unlatched to permit their opening and interruption of the operation after a complete cycle has been 5 effected.

Accumulating mechanism The accumulating mechanism is shown in Figs. 5, 5a and 5b and comprises a plurality of print- 30 ing wheels I15 to which gears I16 areattached. The wheels and gears are mounted on a rod I11 carried in a frame I18 which is pivoted at I19 and has a rod I passing through a slot I6I in an arm I82 secured to a rod I83. When the arm 35 I82 is rocked clockwise, the slot I8I will cause the member I18 to rock counterclockwise and withdraw the gears I16 from engagement with the teeth in sectors I84. The operation is such that as the sectors I03 are rocked clockwise to 40 position the price printing type sectors 61 under control of the corresponding magnets 81, pins I85 in the sectors I03 will cause the corresponding sectors I84 to move therewith and take position in accordance with the digital value se- 45 lected for printing. After all the type sectors have been positioned, the gears I16 are moved into engagement therewith so that on the return stroke, the amount represented by the positioning of the sectors I86 will be rolled onto the gears. 50 Each gear is provided with the usual carrying tooth I86 which is adapted to rock the usual arm I81 clockwise whenever thcwheel passes through zero. The usual latch I88 is provided to hold the arm in rocked position; This arm cooperates 55 with a lateral extension I89 of the next higher order sector I89 permitting it to advance an additional step to enter a uni in its corresponding wheel" whenever the lower order wheel passes through zero. The mechanism for rocking the 60 wheels in and out of engagement comprises linkage designated I98 in Fig. 6 which connects the rod I63 to a follower arm I9I. The roller is operated by a cam I92 carried by the shaft 22. After each entry into the wheels I15, a printing 65 hammer I93 (Fig. 5) is tripped to take an impression from the wheels onto a record strip I96 which is provided with suitable spacing mechanism (not shown). Hammer I93 is carried on a rod I95 (see Figs. 5a and 5b) to which is also se- 70 cured a member I96 which is connected by a link I91 to an arm I98 secured to a rod I99. In Fig. 6 the rod has link and lever connection 200 to a shaft 20I whose follower arm 202 is op- 4 erated by a cam 285 mounted on the shaft 22. At ,7

rock counterclockwise. Near the end of the stroke, latch 204 engages a fixed pin 206, causing it to rock to the position shown in Fig.

1. A printing mechanism for completely print- 4. In a printing mechanism, the combination of a plurality of of elements, means for concurrently moving said rows of elements to present the type elements rest.

10. In a printing machine, a printing station and a stamping station located adJacent to one 2,iii,ini

station, to said printing station, to receive printing impressions and means for causing ejection of said section from said printing station.

11. The invention set forth in claim 10 in which cutting means is provided and rendered operative to sever said section from the tape after ejection from the printing station.

12. In a printing machine, a type wheel having a plurality of type elements, means for rotating the same, an emitter arranged to emit a series of impulses one for each type element, a series of coil springs, connected to said emitter to each receive a difierently timed impulse, a common coil spring parallei' to said series of springs, a key movable transversely to the direction of the length of said springs and contact means carried by said key to engage and electrically connect one oi said series of springs to said common spring, a circuit completed'by said engagement and means included in said circuit for causing printing to be efiected by one of said type elenients.

it. In a ticket printing machine, a plurality of printing wheels, a date stamping device, a plurality of manually operable keys, each key corresponding to difierent data, a ticket tape having notches in the edges thereof dividing the tape into ticket sections, means for advancing said tape, section by section to said printing wheels, means rendered operative by the actuation of a key for engaging said notches and causing retrograde movement of the tape to bring a section thereof into registration with said stamping device, further means for thereafter advancing said section to said printing wheels and means brought into operation by said key for causing the stamping of the registered section by said device and printing on the section by said wheels in accord-.

ance with the data represented by the key.

14. The invention set forth in claim 13 in which means is provided and set in operation by the actuation of said key for causing severance of the section from the tape after stamping and printing operations have been completed.

ALBERT W. MILLS.

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