US1823262A

US1823262A - errera

Info

Publication number: US1823262A
Authority: US
Publication date: 1931-09-15
Anticipated expiration: 1948-09-15

Description

A. ERRERA' Sept. 15, 1931.

COMPUTING MACHINE'V Filed Aug. 9, 19%, 34 4 Sheets-Sheet l jnvenfor:

Erre ra flJ/lmqmzc.

Attorney Sept. 15, 1931. A. ERRERA COMPUTING MACHINE Filed Aug. 1927 4 Sheets-Sheet 2 frr-era AZZo/"ney Sept. 15, 1931. A. ERRERA 1,823,252

COMPUTING MACHINE Filed Aug. 9, 1927 4 Sheets-Shem. 3

Sept. 15, 1931. A. ERRERA 1,323,252

' COMPUTING MACHINE File d Aug. 9. 1927 4 SheetsSheet 4 Patented Sept. 1 5 1 93 PATENT OFFH'IE ATTILIO ERRERA, F TURIN, ITALY, ASSIGNOR TO SOCIETA ITALIANA REGISTRATORI SIR, OF TURIN, ITALY, A COMPANY OF ITALY COMPUTING MACHINE Application filed. August 9, 1927, Serial No. 211,780, and in Italy August 20, 1926.

The present invention has for its object a printing apparatus'for attachment to cash registers, computing machines and the like, which provides for printing on a recording strip or tape the operations eifected in the machine as well as for printing and delivering tickets and stamping documents, as bills or the like, which may be inserted temporarily in the machine.

The apparatus according to this invention may be removed bodily from the machine in which it is arranged, and the device for printing the recording strip or tape is in turn removable from the apparatus, the means for the actuation of said device being further able to take up difierent positions depending on the required conditions of operation.

The ticket printing device may be put in operation at will, either to operate forgiven operations of the machine or to print a single ticket, or forticket printing and delivery at each operation, and finally it may be used for stamping documents inserted in the machine. 7

In the accompanying drawings there is illustrated by way of example an embodiment of this invention and: I

Figure 1 is a side view of the whole of the apparatus Figure 2 is a section on line 22 of Figure 3;

Figure 3 is a fragmentary plan view of Figures 1 and 2;

Figure 4 is an elevation to enlarged scale of a detail of Figures 2 and 3, some parts being omitted or broken to make clear the illustration 3 Figure 5 is a fragmentary plan View of Figure 4;

Figure 6 is a fragmentary enlarged front View of a further detail;

Figure 7 is a fragmentary plan view of Figure 6;

Figure 8 is a fragmentary diagrammatic view showing a portion of the mechanism and Figure 9 is a fragmentary view similar to F igure 4 with the parts in a different operative position.

The present invention may be used in connection with cash registers and computing machines and it is hereinafter described in connection with a cash register of well known and conventional type, including printing type means carried in position by the setting-up or indexing operation of the machine and a main driving shaft which is rotated after the setting-up operation to produce the operation of the machine.

As shown in Figures 13 the whole device for printing on a recording strip or tape and for ticket printing and delivery is carried by a support provided by two

side plates

1, 1 and is fastened by means of bolts 2 on the frame of a cash register, the outline of which is shown in Figure 1, said support being thus able to be removed bodily from said cash register by unscrewing nuts 300 from said bolts and withdrawing the said support.

.The side plates 1-1 have an opening 301 beyond which extends a set of concentric printing type discs or wheels 8 when said support is attached in position on the machine; said type wheels are driven as usual by concentric shafts 3 of the registering mechanism and their rims are provided with projecting types intended to print numerals carried into printing position by the operation of the cash register, as hereinafter described; each of said wheels 3 is provided with a double series of figures from O to 9, which series alternate with each other and are spaced from each other through a given angle to provide for printing the same numeral on two spaced platens as hereinafter described.

The device for printing on a recording strip or tape comprises a plate 4 (Figure 1) which is pivoted, by means of asleeve 5, on a pivot stud 6 fastened on side plate 1; on said movable plate 4 are mounted to rotate on respective spindles abobbin 7 from which a paper tape r shown by a dotted line is unwound, a winding-up bobbin 8 and a platen roller 9. A key 304; rigidly connected to bobbin 8 enables the operator to wind up the paper tape thereon when required. Said platen roller 9 has secured to it a ratchet wheel actuated by a locking pawl lland a driving ing it, on the platen roller 9 to ensure pawl 13, the latter pivoted on an arm which rocks on an axis concentric with roller 9 and has a back pin 141 engaged in a coopcrating hole of side plate 1; at each oscillation of plate 4 with respect to side plate 1 said arm 140 and pawl 13 move with respect to ratchet wheel 10 and the cooperation of said ratchet wheel 10 and pa-wls 11 and 13 causes the ratchet wheel 10 and roller 9 to feeding and platen roller 9.

The oscillationof plate 4 around pivot stud 6 is caused by the hammer 14 of a lever 24 located behind plate 1 (Fig. 2) and fulcrumed at 282 and having a roller 24 actuated by a cam 144 fixed to the main shaft 110 of the cash register or machine, said hammer 14 striking on a cross bar 16 adjustably carried by plate 4, and located behind the same. Said cross bar 16 is controlled by a knob 15 whose spindle extends through plate 4 and carries cross bar 16, to take up two differentpositlons in one of which (represented 1n 7 full lines in Fig. 2) the end of said cross bar 16 is near hammer 14 which strikes it immediately the lever 24 is oscillated, while in its alternative position (dotted line, Fig. 2) which is perpendicular to the first one, it is spaced from hammer 14 and enables the lever 24 to efiiect its entire oscillation without its hammer 14 actingon. cross bar 16. Knob 15 actuatesalso a crank arm 18 fulcrumed at 302 on plate 4 and engaging by its hook 19,

against the action of a return spring not shown, a groove 20 in pivot stud 6, to hold plate 4 rotatably engaged on the side plate 1. By turning knob 15 to a position in which its recess 17 is in front of a stud 21 on crank arm 18, hook 19 is removed from the groove of stud 6 under action of its return spring, and then plate 4 with cooperating parts may be released from pivot stud 6 and removed from side plate 1.

By-turning knob 15 into positions marked respectively 1', 2 and '3, any of the three fol lowing operative conditions may be secured: (1) plate 4 and record tape printing device in operative condition (hook 19 engaged in groove-2O and cross bar 16 adjacent to hammer 14) (2) tape printing device in inoperative condition (hook 19 engaged in groove 20 and cross bar 16 spaced apart from hammer 14) and (3) plate 4 released and able to be removed by itself from side plate 1 and the machine, and printing device inoperative in order, say, to renew the recording tape or for other purposes (hook 19 released from groove. 20 and cross bar 16 spaced from hook 14).

The type inking ribbon consists of an endless band c' which follows a path shown by a dotted line in Figure 1 and embraces the set of type wheels or disks 3 and a feeding roller 29 the feed is caused by a ratchet wheel 22 secured to said roller 29 and actuated by a driving pawl 23 and a locking pawl 25 at each oscillation of arms 280281 as hereinafter described.

Rollers

26 and 27 are forced against'he ribbon c' by spring actuated arms 305306 carrying them, to. supply said ribbon with ink and to force it in contact with its feeding roller 29. A nose arm 28 carrying atone end the pawl 23 is intended to aline and justify type wheels 3 immediately before the printing operation.

Said nose 28 is actuated by an arm 280 rigidly connected therewith and by a further arm 2 1 rigid with a shaft 282, both arms being mentioned above; and said shaft 282 in turn is rigid with an arm 281 having a roller 283 actuated by a cam 284 on shaft 110 (Fig. 2).

The above cescribed actuating members ing rollers for the inking. ribbon are "a ged in a removable casing which also provided with a printing plate 181 intended to print pictures, indicia, or the like on tickets, and with a of type rollers 182 intended to print dates and other indicia, as well as with actuating means for the last named type disks 182, these means not being illustrated. I.

As above described. the ticket printing and delive ing device may be set for difi erent operative conditions, that is, it may be made entirely inoperative, or it may be made operative for the delivery of a single ticket and thereafter a i n inoperative the further operation of the computing of the ma chine, or it may be made permanently op- In both the last named operative r ons the printing and delivery of set ticket may be replaced by a printing operarender the ticket delivering means inopera tive while permitting the operation of the printing device.

The ticket strip or tape 7fintended to form the tickets is carried by a drum 30 ire 1) loosely pivoted on. side plate 1, and the tape t passes along guides 31. d 32 to a feeding roller 33 and then through a guide 34 which leads it over platen 35 and under disks or wheels 3 r, a roller 36 then ejects the printed ticket which passes to the deliverv plate 37. i I

A roller 285 serves for inking roller which is provided with type intend ?(l to be reproduced on the lower face of the ticket; said roller 285 is carried by a crank arm 307 fulcrumed at 308 and actuated by a spring 309.

The

rollers

33 and 36 are actuated by the .main shaft 110 of the machine by means of gear wheels as hereinafter described; as is well known, the operation of machines of the kind to which this invention refers is produced by a revolution of a main shaft after amounts have been set up or indexed by the manipulation of keys, and during said revolution of the said main shaft the several registers and totalizers are driven, the printing device and the ticket delivery device are operated and finally the keys are released, the 5 several parts of the machine then being brought again into inoperative position for subsequent operation.

In the first portion of the revolution of the main shaft 110, roller 33 operates to feed the ticket strip 2f until it is within reach of roller 36 (it being assumed that the ticket delivery mechanism has been brought into operative condition) an-din the subse quent' operation a knife 313 is raised to cut a ticket from the strip and the platen is actuated to force said ticket against inking ribbon -/i and printing parts 3-181-182; finally in the last portion of the revolution of the main shaft the roller 36 is made operative, it delivering a printed and cut off ticket on the plate 3 To obtain the operation briefly stated above, the platen 35 is carried by a slide 38 mounted to reciprocate vertically in guides 39 fastened on side plate 1, said slide abutting at the loWer end of its stroke on a bottom stop 145 and carrying a front projection 40 to effectthe platen lifting operation as hereinafter described.

40 This operation is produced by a bell crank 41 subjected to the action of a return spring 286 and fulcrumed at 42, one arm having a roller 43 which is driven by a cam 44 fast on the main shaft 110 of the machine. On the end of the other arm of bell crank 41 is pivoted at 45 a crank 46 whose stud 47 is designed to engage said projection 40 when the platen is to be operated and the bell crank 41 is oscillated by cam 44. To control crank 46 a second crank 48 is fulcrumed at 49 on bell crank 41 and it has one end coupled at 50 with crank 46; the other end of said crank 48 is subjected to the action of a spring 51 fastened to bell crank 41 and it has a head 310 actuated by a projection 52 on an arm 53 loose on pivot 42 and connected at 54 withan arm 55 fixed to, a shaft 111; an arm 83 (Fig. 2) fixed to shaft 111 is actuated by a sector-shaped .rocker 56 fulcrumed at 30 57 and controlled by keys 6162112113 .114 which are adapted to putthe ticket printing device into operation in the here'- inafter described manner. 1

A spring 58 acting on an arm 311 connected 5 to rocker 56 moves the latter 56 back to its position in which parts 83111--555453 5248 keep crank 46 with its stud, 47 spaced from projection 40 (Fig. 1); then the operation of the computing machine and the revolution of cam 44 as well as the consequent oscillation of arm 41 leave the platen 35 inoperative.

When any of the keys intended to put the printing device into operative condition is actuated, arm 53 is oscillated by the above described parts 568311155, and its projection 52 engages head 310 and

rocks cranks

48 and 46 to carry stud 47 into position to cooperate with parts 40-38, so that the oscillation of bell crank 41 produced by cam 44 thus lifts the platen 35 to force the portion of strip above it against the inking ribbon and printing parts.

As shown in Figures 6 and 7, in said platen 35 is mounted a loose shaft 59 having excentric pivots 59 and engaged with a C-shaped piece 314 which is located on the extension of platen 35 and is rigidly connected with blade 313 which cooperates with a stationary blade 60 having a slot through which passes the ticket strip t, to cut a ticket from the said strip at the beginning of the upward stroke of the platen. The shaft 59 may be adjusted from outside by means of a manipulating knob 159 and it may be locked in any selected position by means of a nut 259 screwed on one of said parts 59 which clamps a conical split sleeve 359 loose on said pivot 59 in a conical seat in said platen; by adjusting the angular position of shaft 59 it is thus possible to adjust the position of the blade 313 with respect to the platen and to the stationary blade 60 while blade 313 is caused to reciprocate in guides 312 to follow said platen in its reciprocation.

The sector 56 is actuated by keys 61 and 62, the first one of which is intended to be released from its operated position by the operation of the setting up or indexing keys of the machine in the manner usual in computing machines and cash registers, while the second one is provided with a stop 63 which holds it in operated position until it is removed therefrom by the operator, the provision of such a stop as 63 being also well known in machines of the above stated kind.

hen the key 61 is manipulated, the printing device operates only in respect of any operation or manipulation at the beginning of which the operator has actuated key 61, while when key 62 has been depressed, said printing device operates in a permanent manner until key 62 is released by the operator. The

keys

112, 113, 114 correspond with particular operations effected in the computing machine and they actuate an arm 115 fulcrum-ed at 315 which acts on a stud 116 carried by sector 56 and puts the printing device in operative conditions as above described.

diary of pinions 316-287-288-289-290- 291 (Fig. 3) but the strip and the ticket severed therefrom are under the grasp and action of said rollers only when they are pressed thereon and thus the feed of the strip may be made inoperative at will.

F or this purpose (Figures 4 and 8) on side plate 1 are pivoted at 64 and 65 crank arms 66-66 and 67-67

carrying rollers

68 and 69 parallel and adjacent to rollers 33- 36 and'intended to press the strip and ticket on said feeding rollers 33-36. The said

arms

67 and 66 are coupled by links 70-71 with levers 72-73, both fulcrumed at 74 and each under the action of a separate spring an 7 5-75 (Figures 2348), said levers being provided with rollers 76-77 intended to be engaged by cams 78-117 fast on the main shaft 110: of the machine.

Levers .7 2-73 are/engaged at their ends by a locking. pawl 79 which is fast on a rocking shaft 97 and is held by the intermediary of a return spring 99 in a position in which it leaves levers 72-73free, Said spring 99, shown inFigure 4, is attached to a bell crank 100 fast on shaft 97 and to a second bell crank 98whose purpose is hereinafter described and which issubstantially stationary at the time said return spring must operate. Said pawl 79 is actuated in turn by means of a pin 79 carried thereby, by the edge of a lever 82' pivoted at 65 and actuated by arm 81 fast on shaft 111; as'above described, said shaft 111 is intended to control the operation of the platen and it is in turn actuated by arm 83, sector 56 and the several control keys. Lever 82 has a nose 84 (Figures 2 and 8) intended to be engagedby a tooth 85 on a rocker arm 86 pivoted at 87 and actuated on one side by spring 88 and on the other side, through a pin andslet'connection 89-90, by a link 91 j connectedwith a lever 92 fulcrumed' at 97 and under the action of a spring 93, as well assubjoct to actuation by an abrupt cam 95 rigidly connected with

cams

78 and 117,

T through the intermediary of roller 94 pivoted on the end of lever 92. On sector e6 being acted on to put the ticket printing device in operative condition, lever 82 is oscillated and" leaves pin 79 free to move forward, the pawl 7 79 being then removed by action of its spring 99, and then springs -75-

cause levers

72 and 73 to oscillate around their fulcra 74' and to carry their rollers 767 7 into contact with earns 78 and'117. At the beginning of 5 the rotation of the main shaft 110 (which 78 and permits lever 72 to rise; link 70 is thuscaused to rock arms 66-66 and to carry roller 68 against the cooperating'feedingroller 33, thus producing the engagement of the ticket strip by roller 33' and the feed of said strip, to carry afresh portion thereof above platen 35 until its end is over roller 36 ready for engagement thereby. V

After a ticket has been printed and cut off by the described operation of the platen and blades, an operation'similar to the above described one is repeated in respect of cam 117, roller 77 lever 73, link 71, arms 67-67 and roller 69 which presses the ticket on the roller 36 which is driven by the main shaft of the machine and causes it to be expelled from the machine. 7

At the beginning of operation of

cams

78 and 117 the abrupt cam 95 releases roller 94,

d lever 92 is thus free to move upward under the actuation of its spring 93; link 91 is thereby raised and spring 88 is enabled to shifts-rm 86 and tocarry its tooth 85 into engagement with tooth 84 of lever 82 to hold said lever stationary and pawl 79 in released position with respect to levers 7 2-73 through the entire revolution of cams 7 8 and 117.

On the contrary when the main shaft 110 of the machine is actuated without any of the control keys 61-62-112-113-114 having first been manipulated, and the printing device is in inoperative condition, lever 82 keeps pawl 7 9 in position to engage levers 7 2 and 73 which are thus prevented from rising when the depressions of

cams

78 and 117 pass over the: rollers 76-77 on said levers, while the slot 90provides for the free oscillation of lever 92 in spite of the fact that rocker 86 is prevented from making its complete stroke because of the abutment of its tooth 85 against the nose or tooth 84 of lever 82; at the end of the revolution of the shaft 110 the slope of cam'95 again moves roller 94 and lever 92 into their position shown in Figure 2.

To provide for printing from the types carried by disks 3 and the other printingparts 181-182 into printing position, on a sheet introduced from outside into the guide 34, as a bill or the like, (it being necessary for this purpose to make the ticket strip feeding means inoperative while. allowing the platen operation), the mechanism hereinafter described in' connection with Figures 4, 5 and 9 is used. The pawl 79 is rigidly connected through the intermediary of shaft 97, with pin 103 of lever 102 to move plunger 104 into guide 34. Such a motion of plunger 104 is usually unrestricted when a ticket is printed because the leading edge of said ticket is above roller 36 and the guide 34 is free, but when a sheet of paper or the like is inserted in guide 34 from outside. to produce a print thereon, pawl 7 9 is held in engaged position because the point of interconnection 816 of lever 102 with plunger 104 is left stationary owing to the rise of plunger 104 being prevented, and therefore in view of the displacementof pivot pin 103 produced in the de scribed manner by the oscillation of

arms

92 and 98, said lever 102 rotates with respect to pivot 103 and arms 98-92 and produces an oscillation of crank 100 and pawl 79 to restore said pawl 79 in engagement with

levers

72 and 73 before their rollers 7 6 and 77 have entered the depressions of their respective cams 78-117.

The operation and use of the described devices are made clear by the above descrip ion.

The record tape or strip printing device is put in operation at each manipulation of the indexing keys of the machine, unless the device is intentionally made inoperative by the manipulation of knob 15.

The ticket printing device is usually inoperative but on one of the control keys 61,-112113114 being manipulated when the desired amount is set up or indexed in the machine, said. device is put in operation by the subsequent operation of the machine;

thereafter the control key is released in the usual manner as a consequence of the opera- .tion of the machine and the ticket printing device is again rendered inoperative after 1 each operation.

a Qn thecontrary when key 62 is depressed, wlnch'key is held inoperative position by i stop 63, the ticket printing device is put permanently in operative conditions and a ticket is printed and delivered at each operation of the machine until stop 63 and key 62 are released by theoperator.

In both cases above described, when a sheet is inserted from outside. into the guide 34, a

- recordis printed on said sheet and the delivery of a ticket is prevented.

Of course the features of the present inventi'on may be embodied in machines in which the setting up or indexing operations are made by means of levers instead of keys.

The described apparatus has the advantage that the recording tape printing device maybe removed separately from it when required, while thewhole apparatus may be detached from the computing machine to which it has been applied, and a single set of printing and inking means is used in respect of all printing points.

Of course the present invention is not restricted to the construction described and illustrated'and it may be embodied in a number of different constructions lying within the spirit of the appended claims.

What I claim as my invention and desire to secure by United States Letters Patent is:

1. A ticket printing and delivering attachment for computing machines, comprising means for supporting a ticket strip, a roller for feeding said strip, means for severing a ticket from the strip, a platen, a roller for ejecting said ticket, said rollers being driven by a shaft of the computing machine, pressure rollers for respective cooperation with said feeding and ejecting rollers, members carrying said pressure rollers, a leading cam on said shaft controlling one ofsaid carrying members, a trailing cam on said shaft controlling the other carrying member, spring means acting on said members to carry them and their pressure rollers into cooperation with their respective feedin and ejecting rollers and cams, means for shifting said platen, a cam on saidshaft intermediate said leading and trailing cams and operating said platen shifting means, controlling means for putting said platen shifting means into operative and inoperative condition, means restraining said spring actuated members against motion towards their respective cams, means for putting said restraining means in released and engaged positions.

2. A ticket printing and delivering attachment for computing machines, comprising means for supporting a ticket strip, a roller for feeding said strip, means for severing a ticket from the strip, a platen, a roller for ejecting said ticket, said rollers being driven by ashaft of the computing machine, pressure rollers for respective cooperation with said feeding and ejecting rollers, members carrying said pressure rollers, a leading cam on said shaft controlling one of said carrying members, atrailing cam on said shaft controlling the other carrying member, spring means acting on said members to carry them and their pressure rollers'into cooperation with their respective feeding an entire operation of said computing machine shaft.

3. A ticket printing and delivering attachment for computing machines, comprising means for supporting a ticket strip, a roller LYI for feedingsaid strip, means for severing a ticket from the strip, a platen, a roller for ejecting said ticket, said rollers being driven by a shaft of the computing machine, pressure rollers for respective cooperation with said feeding and ejecting rollers, members carrying said pressure roller ,a leading cam on'said shaft controlling one of said carrying members, a trailing cam on said shaft controlling the other carrying member, spring means acting on said members to carry them and their pressure rollers into cooperation with their respective feeding and ejecting rollers and cams, means for shifting said platen, a cam on said shaft intermediate said leading and trailing cams and operating said platen shifting means, controlling means for putting said platen shifting means into operative and inoperative condition, meansrestraining said spring actuated members agalnst motion towards their respective cams, means for putting said restraining means in released and engaged positions, means permitting the insertion. of a work-piece upon the platen, and means actuated by said inserted piece to prevent the re lease of said restraining means.

4:. A ticket printing and delivering attachment for computing machines, comprising means for supporting a ticket strip, a roller for feeding said ticket strip, means for severinga ticket from the strip, a platen, a roller for ejecting said ticket, said rollers being driven by a shaft of the computing machine,

pressure rollers for respective cooperation restraining said spring actuated members againstmotion towards theirrespective cams,

controlling means for putting saidlplaten shiftingmeans into operative and inoperav tive condition and said restraining part in released and engaged positions, an abrupt cam onsaid shaft, a part under the control I of said abrupt cam to engage saidrestraining aart in released osition through an entire operation of said computing machine shaft,

meanspermitting the insertion of a workpiece upon the platen. an arm pivoted on said abrupt-cam controlled part, plunger carried by said arm and reciprocating through said inserting means, and means connecting said arm with said restraining part to bring the lastanamed part into engaged position when .thereciprocaiionof saidplunger during the oscillation of said abrupt-cam controlled arm is prevented by the inserted workpiece.

5. An attachment for a computing ma chine, comprising an actuating shaft, printing members, a supporting member, a carrier 1 mounted on said supporting member, means for connecting said carrier with said supporting member and providing for its oscillation and release, a strip delivering bobbin on said carrier, a receiving bobbin on said carrier, a platen and a strip feeding roller on said carrier, means for actuating said platen and feeding roller to feed the strip from said delivery bobbin to said receiving the oscillation of said carrier, an adjustable part on said carrier, means actuated by said shaft to strike said adjustable part and force said carrier and platen against said printing members, means for supporting and feeding a ticket strip and for severing and deliveringa ticket therefrom, a platen for theticket, means actuated by said shaft for operating the last named means and platen, and controlling means for putting the last named operatin means into and out of operative position.

6. An attachment for a computing machine comprising an actuating shaft, printing members, a supporting member, a carrier mounted on said supporting member, means for connecting said carrier with said supporting member and providing for its oscillation'and release, a strip delivering bobbin and a strip receiving bobbin on said carrier, a platen and a strip feeding roller on said carrier, means for actuating said platen and feeding roller to feed the strip from said delivering bobbin to said receiving bobbin,

said ineans'being made operative by the oscillation of said carrier, an adjustable part on said carrier, said adjustable part controlling said carrier connecting means, means actuated by main shaft to strike said adjustable part and force said carrier and platen against said printing members, means for supporting and feeding a ticket strip and for severing and delivering a ticket therefrom, a platen for the ticket, means actuated by said shaft for operating the last named means and'platen, and controlling meansfor putting the last named actuating means into and out of operative position.

7. A ticket printing and delivering attachmeans for supporting a strip from which the tickets are-to be severed; printing members; means actuated by a shaft of the computing machine for feeding and severing said strip and for pressing it against said printingmembers to obtain a print therefrom; a guide for the strip between said printing members and the meansfor pressing the strip against them; controlling means for selectively connecting the feeding and printing means with bobbin, said means being made operative by s ment for computing machines, comprising 1 the machine shaft; and means operable by the insertion of a workpiece from the outside into said guide for rendering the strip-feeding means inoperative.

8. A ticket printing and delivering attachment for computing machines comprising a carrier removable bodily from the machine, and mounted on said carrier the following instrumentalities, to wit: means for supporting a strip from which the tickets are to be severed, printing members, means actuated by a shaft of the computing machine forfeeding, severing and carrying said strip in cooperative relation with said printin members, and controlling means for selectively connecting the feeding and printing means with said machine shaft.

9. A ticket printing and delivering attachment for computing machines, comprising means for supporting and feeding a strip from which the tickets are to be severed; printing members; a platen for said strip; means actuated by a shaft of the computing machine for severing and delivering a ticket from said strip, said platen cooperating with said printing members; an inking ribbon encircling said printing members; means for feeding said inking ribbon; means to operate said feeding means and ticket severing means and to move said platen against said printing members and inking ribbon; a guide for the strip between said printing members and platen; controlling means for selectively carrying said strip feeding and ticket print ing, severing and delivering means in connected relation with said machine shaft; and means operable by the insertion of a sheet from the outside into said guide for rendering the strip feeding means inoperative.

10. A ticket printing and delivering attachment for computing machines, comprising means for supporting and feeding a ticket strip; means for severing and delivering a ticket from said strip; set of printing members; a platen for said strip, said platen cooperating with said set of printing members; inking meansfor said printing mem bers; a guide for the strip between said printing members and platen; means actuated by a shaft of the computing machine for erating said platen, certain parts in said ,naftactuated means adapted to be carried out of "operative position; means for controlling said parts; means for controlling the said strip feeding means and ticket delivering means; and means operable by the insertion of a sheet inserted from the outside into said guide for rendering the strip feeding me: inoperative. I

11. A ticket printing and delivering attachment for computing machines, comprising means for supporting and feeding a ticket strip; means for severing and delivering a ticket from said strip; a set of printing members; a platen for said strip, said platen cooperating with said set of printing members; inking means for said printing members; an actuating arm operated by a shaft of the computing machine; a crank arm pivoted on said actuating arm and adapted to shift said platen; a member concentric with said actuating arm and controlling said crank arm; and means controlling said memberand crank arm to carry them into and out of operative condition.

12. A ticket printing and delivering attachment for computing machines, comprising means for supporting a ticket strip; printing members; a roller for feeding said strip and driven by a shaft of the computing machine; means for severing a ticket from the ticket strip; a platen for pressing said strip against said printing means and under actuation of the machine shaft; a roller driven by said shaft for ejecting the ticket; :1- pressure roller for cooperation with said strip feeding roller; a pressure roller for cooperation with said ejecting roller to produce the feed of the ticket strip to said ticket severing means and platen and the ejection of a printed and severed ticket; means to restrain said pressure rollers from cooperation With said feeding and ejecting rollers; controlling means for selectively carrying said strip feeding means and platen into inoperative condition; means for selectively carrying said platen and said restraining means into and out of operative condition and into released and engaged positions, respectively; and means under the actuation of said shaft to hold said restraining means in released position through anentire operation of said shaft after having been carried into released position.

\ 13. A ticket printing and delivering attachment for computing machines, comprising means for supporting a ticket strip; printing members; a roller for feeding said strip and driven by a shaft of the computing machine;

means for severing a ticket fromthe ticket I strip; a platen for pressing said strip against said printing means and under actuation of the machine shaft; a guide for the strip between said printing members and platen; a roller driven by said shaft for ejecting the ticket; a pressure roller for cooperation with said strip feeding roller; a pressure roller for cooperation with said ejecting roller to pro duce the feed of the strip to said ticket severing means and platen and the ejection of, a printed and severed ticket; means to re strain said pressure rollers from cooperation with said feeding and ejecting rollers; controlling means for selectively carrying said strip feeding means and platen into inoperative condition; means for selectively carrying said platen and said restraining means into and out of operative condition and into released and engaged positions, respectively;

and means operable by the. insertion of a sheet from the outside into said guide to hold said restraining means in engaged position during the operation of the platen.

' lt. A ticket printing and delivering attachment for computing machines, comprising means for supporting a strip from which the tickets are to be severed; printing members; separate means adapted to be actuated by a shaft ofthe computing machine for v feeding said strip and for carrying it in co- .ope-rative relation with said printing members controlling means operable by hand for carrying said feeding means and said printing means inoperative or in inoperative relation with the machine shaft; and another controlling means in said strip-feeding means, the. last-named controlling means adapted .to be actuated by the introduction of 520 a workpiece into the machine for receiving a print from said printing members.

, 15. A ticket printing and delivering attachment for computing machines, comprising means for supporting a strip from which the tickets are to be severed printing members; separate means comprising lever gears actuated by a shaft of the computing machine for feeding. said strip and for carrying it in cooperative relation with said printing members; means operable by hand for completing or interrupting the operative succession of said lever gears; and another controlling means for connecting or disconnecting the lever gear actuating the strip-feeding means, said last-named controlling means being adapted to be actuated by the introduction of a workpiece into the machine for receiving a print from said printing members.

16. A ticket printing and delivering attachment for computing machines,comprising means for supporting a strip from which the tickets are to be severed; printing members; separate means comprising twolever gears actuated by a shaft of the computing i machine for feeding said strip'and for carrying it in cooperative relation with said printing members; a key acting on both said lever gears to maintain them in connectedrelation; and another controlling means for discon- 5,0 necting the lever gear actuating the stripfeeding means, said last-named controlling means being adapted to be actuated by the introduction of a workpiece into the machine for receiving a print from said printing members.

In testimony whereof I afiix my signature.

ATTILIO ERRERA.