US2905306A - Carriage movement controlling mechanism - Google Patents

Description

Sept. 22, 1959 o. w. swANsoN CARRIAGE MOVEMENT CONTROLLING MECHANISM Filed oct. 31, 1956 3 Sheets-Sheelt 1 Sept- 22, 1959 o. w. swANsoN 2,905,306

CARRIAGE MOVEMENT CONTROLLING MECHANISM Filed Oct. 31, 1956 3 Sheets-Sheet 2 .I IZ? /f il /7 SHUTTLE IN V EN TOR. OSCAR W SMA/SON y@ y. fw

A T7'ORNEV Sept. 22, 1959 o. w. swANsoN CARRIAGE MOVEMENT CONTROLLING MECHANISM Filed oct. 31, 195e 5 Sheets-Sheet 3 Unite ares CARRIAGE MOVEMENT CONTROLLING MECHANISM Oscar W. Swanson, Bridgeport, Conn., assignor to I Jnderwood Corporation, New York, N.Y., a corporation of Delaware Application October 31, 1956, Serial No. 619,508

8 Claims. (Cl. 197'177) This invention relates to accounting machines and more particularly to means for controlling the movement of the paper carriage of such machines.

ln many present day accounting systems it is desirable to make two originals or ribbon copies of the work and this has been accomplished by placing two work forms side-by-side in the machine and causing the machine to repeat print on the second work sheet the material previously printed on the first. Such operation has heretofore been achieved only by machines having a fairly large number of registers whereby an amount printed on the first work sheet as an item entry could be stored in a register and subsequently printed on the second work sheet as a total or subtotal.

lt is an object of the present invention to provide an accounting machine having carriage controlling and carriage controlled means whereby a plurality of original records may be produced without the use of any more registers than required for making a single record and without the necessity for manually setting up an item more than once.

Vlt is a further object of this invention to provide improved means for controlling the movement of the paper carriage of an accounting machine.

These and further objects, features and advantages will become apparent as the description of a preferred embodiment of the invention proceeds.

Referring now to the drawings:

Figure l is a representation of one type of work capable of being performed by a machine embodying the present invention and showing diagrammatically certain of the control elements,

Figure 2 is a perspective view of the lower rear portion of the carriage as viewed from the front of the machine and showing certain of the elements for controlling the carriage movement,

Figure 3 is a side elevational view, partially in section, showing certain of the control elements in normal position,

Figures 4, 5 and 6 are views similar to Figure 3 and showing the parts in various operated positions,

Figure 7 is a fragmentary perspective View showing one element of a carriage return clutch and the operating member therefor,

Figure 8 is a fragmentary perspective view of a latch employed in carrying out the invention,

Figure 9 is a perspective view of a portion of one of the elements of the latch shown in Figure 8,

Figure 10 is a side elevational view of certain of the elements employed in carrying out the invention, and

Figure ll is a view similar to Figure 10 and showing the parts in operated position.

While the present invention may advantageously be incorporated in various styles and makes of accounting machines, it will be hereinafter described as embodied in the well-known Sundstrand two-register accounting machine having the general arrangement and mechanisms described in the patents to O. I. Sundstrand, Nos.

2,905,306; Patented Sept. 22, 1959 1,946,505 and 2,088,982 and other patents presently to be referred to.

Before describing the mechanisms in detail, it is believed that it would be advantageous to outline briefly the over-all operation of a machine embodying the invention and attention is therefore directed to Figure l. This figure is a sort of composite and shows parts of four different statement and ledged sheets and the operation of the machine with respect to the uppermost ones will be described rst.

The Statement and Ledger sheets 15 and 16, are placed in the machine side-by-side in printing position in the usual well-known manner. A tally strip 17 lies partially beneath a portion of the Statement and a carbon strip between the tally and the Statement transfers to the tally some of the information printed upon the Statement. The carriage is positioned to align column 1 with the printing station and the operator then enters the Old Balance by means of the keyboard, not shown, and operates the motor bar. The control pins 18 provided upon the stop plate 19 in this column-which stop plate moves with the carriage and corresponds to stop plate 1010 of Patent No. 2,088,982-cause the Old Balance amount to be printed on the tally and added into both registers. The carriage then moves automatically, as will presently be explained, to bring column 2 to printing position. With the carriage in column 2, the operator sets up the folio number and depresses the motor bar. The control pins in this column are so arranged as to cause the folio number to be printed as a whole number, that is, without a decimal point, and to further cause said number to be retained in the usual field of index pins. One of the control pins also causes a non-add operation so that the folio number is not entered into a register. There is also a control pin 20 for this column which causes an automatic printing of the date. After the printing of the date and folio on the Statement, the carriage moves to column 3 where the date and folio are repeat printed on the Ledger without any action of the part of the operator and then steps to column 4D. With the carriage in this position, the operator sets up the Debit amount on the keyboard and depresses the motor bar. The amount is printed in column 4D and the carriage returns automatically to column 4D. The operator then depresses the motor bar to cause the Debit amount to be repeat printed on the Statement and after the amount is printed the carriage moves to column 6 where a blank cycle is instituted to condition the machine for a sub-total operation and then moves to column 7 where the Balance is printed on the Statement as a subtotal. Without further attention from the operator, the carriage then moves to column 8 where the Balance is printed upon the Ledger as a sub-total and then moves to column 9 and comes to rest, the Ledger at this time being located to the left of the printing station. In column 9 the control pins are so arranged as to condition the registers for a subtraction operation and condition the machine for non-print. The operator then enters the Old Balance amount in the keyboard and depresses the motor bar. The Old Balance is subtracted from the Balance amount and the carriage returns to column 10 where a blank cycle is instituted to condition the machine for a totaling operation. After the blank cycle and without attention from the operator, the carriage moves to column 11 where the total is printed upon the tally and then moves to column l in position for the next sequence of operations. A control pin 2l provided for column 11 causes a line spacing operation before the carriage moves back to column 1.

Still referring to Figure 1, the Statement 22 and Ledger 23 illustrate the result when more than a single debit entry is made. ln this case the operation is the same as described above up to the point where the carriage comes to rest in column 5D. Then, instead of depressing the motor bar, 'the operator depresses a shuttle key such askey 527 of the patent to Anderson, No. 2,536,524 and this causes the carriage to return to column 2 and also causes ,a line spacing operation. .From .then on the o pe'ration'is the same as previously described. "Thus, before an amount is printed in column D, the Debit column of the-Statement, the operator has the option of operating the motorbar to cause the carriage to move to position for-printing the Balance or operating the .shuttle key .to bring the .carriage to position for making .another entry.

Statements 24 and 25 and ALedger sheets 26 and 27 `Show .entries .of credit amounts. The operator does the same things when making single and multiple credit entries as when .making single and multiple .debit entries with the .one additional operation of setting a slide or lever, :such as .lever 95.0 of the Sundstrand Patent No. 2,243,228, in its .credit position. As .explained in said patent., .the setting Iof said lever in its lcredit position .causes .the .carriage to skip through the Debit column and .come to rest inthe Credit column.

With `the above described general operation ofthe ma- .chine inmind, attention is now directed to Figure 2 wherein ythe end plates of the carriage are indicated at 28 and 29. Extending between said end plates and forming part ofthe structure ofthe carriage `is a bar 30, see also Figures -3 through 6, to which is secured a plate 31. An elongated cam structure generally designated 32 is mounted upon the plate 31 by means of screws 33 which are secured to .said plate and extend -through diagonally arranged openings 34.in said-.cam structure. V,Suitable collars 3'5 -on the screws space the cam structure from plate `31 and aspring 36 extending between said camstructure and plate normally holds the .cam structure in the position shown in Figures 2 and 3. For purposes presently to be explained, the camstructure comprises a long lower cam element 37 to which is secured by rivets or otherwise, a considerably shorter cam element .38, lsuitable spacers being provided to yseparate the two.

Also -secured to and extending between the carriage end plates 28 and 29 is .-a bar 39vupon'which are adjuzstably and removably mounted 4a plurality of cams which control the return movementof the carriage, aswill presently be explained.

Bearing in mind that in Figure 2 the carriage is viewed from the front of the machine, la Vrearwardly extending shaft 140 is .slidably and :rockably lmounted upon .the stationary base portion .of the machine. Secured to the rear of the shaft 40 is a clutch operating latch element 42, one arm of which is bent forwardly as shown in Figure 7 :and operatively connected to .a carriage return clutch element 43 corresponding to clutch .element 460 of the hereinbefore referred .to Patent No. 2,536,524. Theother arm of the latch element 42 is made thickerias .at 44 and has vSecured .thereto an operating .member 45.

For latching cooperation with the element 42, a second latch member 46 is provided. The member 46 forms an arm of a bail 47 pivotally mounted upon a rod 48 secured to the base of the machine. A spring 49 urges the upper portion of arm 46 into .engagement with the thickened end 44 of the element 42. The element 42, together with .the shaft 40, is normally held in the position shown in Figures 2 and 3 by means of a spring 50 extending between said element and an anchor not shown, a suitable stop, also not shown, serving to limit the vaction of vsaid spring.

tMounted upon the base portion of the machine on a pivot 51 is a member 52 having an-arm 53 engaged with a .collar 54 secured to the shaft-40. The member 52 also has an arm 55 mounted upon which is a roller 56. As best shown lin Figure 3, the roller 56 normally lies in the path .of movement of a cam 57 laterally adjustable upon the bar 39. As the carriage begins its tabulating movement after the printing of the Old Balance in column 1 on the tall-y (Figure l), the cam 57 vcontacts the roller 56 and rocks the member 52 in `a `clockwisedirection as 4 viewed in Figures 3, 4, 5 and 6. Due to the engagement of the arm 53 with the collar 54, this clockwise movement of the member 52 causes the shaft 40 to move rearward and position the latch operating member 45 in the path of movement of a cam 58 carried by the carriage, see Figure 2, for a reason presently to be explained.

Referring particularly to Figures 2, 8 and 9, with the latch :members '42 and 46 in normal position, the spring 49 holds a surface `59'of the latchmember 46 in engagement with .a surface y60 of the thickened end 44 of latch member 42. When member 42 is moved rearwardly, toward the right in Figure 8, due to the above .described engagement of roller 56 by the cam 57, the spring 49 snaps the `surface 59-down into engagement lwith a surface 61 of the .latch element 42. Even after the cam 57 moves past the roller 56, the latch members remain in this position, the spring 50 being unable to restore the member 42 to normal position due to the abutment of a shoulder 62 of the member 42 against a shoulder 63 of the member 46. VThe member 42 is thus held in the position shown in Figure 4 until the carriage moves far enough to bring the .cam 58 into engagement with the .operating member 45.

Referringno-w to Figures 1 and 2, the cam 58 engages the operating Vmember 45 vduring the tabulating move- Vment of .the .carriage after the printing of the Debits or Credits on .the -Ledger ( columns 4D or 4C). Actually the cam 58 is located between column 4C and column 8, so that when Debits are being posted the carriage tabulates through the `Credits column before said .cam contacts the operating member 45.

Engagement of operating member 45 by the cam 58, rocks the latch element 42 in a counterclockwise direction as viewed in Figure 2 to .thereby raise the clutch element 43 and engage the carriage return drive of which said .clutch element is a part, as described in the above referred to Patent No. 2,536,524. During the downward movement of the thickened end 44 of the latch element 42, the spring50 holds the surfaces 62 and 63 in engagement Vwith one another until the pointed end of element 42 passes over the Vpointed end of latch member 46, at which time spring 50 moves a shoulder 64 of element 42 into engagement with a shoulder 65 of member 46. The spring 49 then holds a surface 66 of the latch member 46 in engagement with a surface 67 of element 42. The latch element 42 and member 46 remain in this condition .until the .operating member 45 is engaged by a .cam-168 to thereby swing the element 42 clockwise back to its original position and disengage the carriage return clutch .element 43. As the thickened end 44 of latch ,element 42 is .moved .upward by the cam 68, the spring .50 holds the .shoulder 64'thereof in engagement with the shoulder 65 of member 46 until the upper end of shoulder 64 passes ibeyond the upper end of shoulder 65 and then'said spring restores Yelement 42 to its normal position'wvith the .1suI-face60 in contact with the surface 59, the spring 49 serving .to maintain the parts 4in this position.

The cam -68 is so positioned .on the bar 39 of thecarriage that the clutch element 43 is disengaged after the carriage reaches column 5D (Figure l) and ltherefore if debits are being posted, lthe carriage will move a small distancein tabulating .direction after the disengagement of the return clutch and come to rest in column 5D. If credits are being posted, the carriage will of course move in tabulating .direction until column 5C is reached, at which time it will come torest, as is well-known.

As explained in the hereinbefore referred to patent to Sundstrand, No. 2,088,982, the front edge of stop plate 19.is secured to a bar 69 (Figures l0 and 11) swivelably mounted on the carriage end plates 28 and 29 as by means of .pintles, one of whichis indicated at 70. As also .explained in said patent, the stopV plate 19 is provided with a `tabulator stop, the square pins 71 shown in Figure l, for each column in which it is desired for the carriage to stop. As the carriage moves in tabulating direction, one of the pins 71 strikes a counterstop 72 mounted within a housing 73 secured to the base portion of the machine to bring the carriage to rest in the proper columnar position. During a cycle of operation such as adding, printing, totaling, etc., a member '74 pivotally mounted at 75 on the housing 73 is rocked clockwise. The member 74 has connected thereto another member 76 which underlies a pin 77 the upper end of which, when the carriage is at rest, lies beneath one of the line of pins 78 marked Auto. Tab in Figure l and as the member 74 rocks clockwise the upper end of pin 77 pushes up on the pin 78 to thereby rock the stop plate 19 from the Figure l0 position to the Figure ll position and disengage the pin 71 from the counterstop 72.

Prior to the present invention, as the carriage began to move in tabulating direction, as soon as the pin 78 passed beyond the top of pin 77, the stop plate 119 dropped back to the position shown in Figure with 'the rear edge thereof riding upon a roller 79 provided on the housing 73 and would then normally come to rest in the next columnar position wherein a pin 71 was provided. However, even with the prior construction, the carriage could be made to automatically skip through certain columns such as the Debit or Credit column by properly setting the hereinbefore alluded to slide or lever 950 of the Sundstrand Patent No. 2,243,228. The column skipping means operated by said lever comprises a roller 80 indicated in outline in Figures l0 and l1 which is positioned to cooperate with either a cam 81 or a cam 82 provided on the plate 19 in the Debit and Credit columns respectively. As explained in said patent, when the roller 80 is positoned in the path of movement of one of the cams 81 or 82, the engagement of the cam with the roller causes the rear edge of plate 19 to be lifted up so that the stop pin 7:1 for that column does not contact the counterstop 72 and the carriage therefore passes freely ythrough that column.

The present invention provides means for causing the carriage at times to skip through all the columns between column 2 and column 3, see Figure 1, and between column 7 and column 8. To this end a member 83 is pivotally mounted adjacent the member 52 on the pivot 51. The member 83 is provided with a curled end 84 for cooperating with the cam structure 32, as will presently be explained. A spring 85 extends between a bent over tab 86 on the member 83 and an ear 87 provided on the member 52. The spring 85 causes the member 83 to yieldingly follow the member 52 during its hereinbefore referred to clockwise rocking motion and the abutment of an edge of member 52 against the tab 36 is eifectve to positively restore the member 83 as the member 52 is restored.

-It has been pointed out that the time when member S2 is rocked clockwise to position the operating member 45 of the latch element 42 in the path of movement of the cam 58 is while the carriage is moving from column 1 to column 2. As the member 52 rocks, the member 83 rocks with it from the position shown in Figure 3 to the Figure 4 position to thereby locate the curled end 84 thereof in alignment with the cam element 37 and as the carriage continues its movement toward column 2 the curled end 84 is engaged by a cam surface 88 of said cam element. As the carriage comes to rest in column 2, the high edge of the cam element 37 is in engagement with the curled end 84 of member S3 and said cam element is thereby displaced rearwardly against the action of the spring 36, such displacement being permitted by the diagonally arranged openings 34.

At its left hand end as viewed in Figure 2 the cam element 37 is provided with an extension 89 which is engaged with the lower end of a lever 90 pivotally mounted at 91 upon the carriage end plate 28. As shown in Figures l0 andv 11, a spring 92 extends between the upper portion of lever 90 and a pin 93 on the end plate 28 and serves to normally hold said lever in the position shown in Figure l0. At its extreme upper end the lever has secured therein a pin 94 which is engaged within an elongated slot 95 in one end of a link 96 the other end of which is pivotally connected at 97 to a latch member 98. The pin 94 is normally located in the extreme left hand end of the slot 9S so as to restrain rightward movement of the link 96 but when the cam element 37 is displaced rearwardly the extension S9 thereof rocks the lever 90 clockwise from its Figure lO position so that the link 96 is free to move slightly toward the right for a purpose presently to be explained.

The latch member 9S is pivotally mounted upon a stud 99 secured to the carriage end plate 28 and a spring 100 etxending between an arm 101 of said latch member and the link 96 urges the latch member in a counterclockwise direction. However, as noted above, the counterclockwise movement of the latch member 98 is normally restrained by the link 96. A link 102 is secured at its lower end to one arm of a lever 103 and at its upper end is pivotally connected to a plunger 104 of a dashpot 10S se cured to the end plate 23. At its lower end the link 102 is provided with a pin 106 which normally lies adjacent an edge of the latch member 98 as shown in Figure 10. The lever 103 is pivotally mounted upon a screw stud 107 secured in the end plate 28 and at the end opposite the pin 106 said lever is provided with a stud 108 which is engaged within an open ended slot 109 provided in a member 110 secured to the stop plate 19.

With the carriage at rest in column 2, the lever 90 has been rocked clockwise in the manner explained to free the link 96 and latch member 98 to which said link is connected. During the cycle of the machine for printing the Date and Folio in column 2 and after the printing has been effected, the stop plate 19 is swung upward as aforesaid to permit the carriage to move in tabulating direction. As the rear edge of stop plate 19 moves up, the lever 103 is of course rocked counterclockwise from the Figure l() position to the Figure 1l position and as soon as the pin 106 reaches a point below a shoulder 111 of the latch member 9S the spring 100 swings said latch member counterclockwise to position the shoulder 111 over the pin 106 and thereby prevents restoration of lever 103 and stop plate 19. As long as the stop plate 19 is held in its elevated position shown in Figure ll, the carriage continues to move in tabulating direction and this condition prevails until the shoulder 111 of latch member 98 is removed from blocking engagement with the pin 106.

The high edge of the cam element 37 rides along the curled end S4 of the member $3 until the carriage reaches a point between column 7 and column 3, at which time the high edge passes beyond said curled end and the cam element is then restored to normal position by the spring 36. Upon restoration of cam element 37, the extension 89 thereof frees the lower end of lever 90 and said lever is restored to the Figure l() position by the spring 92. As lever 90 swings back to normal position, the pin 94 pulls the link 96 toward the left and said link in turn swings the latch member clockwise to remove the shoulder 111 thereof from blocking engagement with the pin 106. The stop plate 19 then drops back to its Figure l0 position so that the square stop pin 71 for column 3 will Contact the counterstop 72 and bring the carriage to rest in that column. The dashpot cushions the fall of the rear edge of the stop plate.

It has previously been explained that after the Date and Folio have been printed on the Ledger in column 3 the carriage moves to column 4D or 4C, depending upon whether debits or credits are being posted, and then returns to a point between columns 2 and 5D where the carriage return mechanism is disengaged by the cam 68 striking the lower end of the operating member 45. It has also been pointed out that upon engagement of cam 68 with the operating member 45, the latch element 42 is restoredfrom the posit-ion shown in Figure 4 to its normal position shown in Figure 3 and that members 52 and 83 are also restored to the positions shown in Figure 3. Thus, when the carriage cornes to rest in column- SD or 5C, the curled end 84 of the member 83 is operatively aligned with the cam element 38 as shown in Figure 3.

After the debit or credit amount is printed in column 5D or 5C, the carriage escapes to column 6 wherel a blank cycle is performed, as previously noted, to condition the machine for a sub-totaling operation and then moves to column 7 wherein the Balance is printed upon the. Statement as a sub-total. During the movement of the carriage between columns 6 and 7 a beveled end A112 of the cam element 38 contacts the curled end 84 of member 83 and causes said cam element and the cam element 37 to which it is connected to be moved rearwardly as shown in Figure 5 to. thereby rock the lever 90 and free the latch member 98- as aforesaid. Toward the end of the cycle in column 7, the stop plate 19- is swung upward to permit the carriage to escape and since the latch member 98 has previously been conditioned for action, the shoulder 111 thereof latches over the pin 106 to hold the stop plate in its elevated position shown in Figure 1l. The carriage therefore tabulatesv freely so long asthe high portion of cam 38 is in engagement with the curled end 84 of member 83. The lengthl of the cam 38- is such that the high. port-ion thereof passes beyond the curled end 84 just after the carriage passes through column 4C. Thus, as soon as column 4C is passed the spring 36 restores the cam structure 32 and the spring 9-2 causes the link 96' to swing the latch member 98 clockwise to release the pin 106 and permit the stop plate 19 to drop back to its Figurel l0 position so that the carriage will come t0 rest in. column 8 due to engagement of the square pin 71 for that column with the counterstop 72.

After the Balance is printed in column 8 the carriage escapes to column 9 where the operator again sets up the Old Balance amount. It has previously been mentioned that in this column the machine is conditioned for a subtraction operation and therefore the old balance is subtracted from the new balance, which should, if old balance has been entered correctly in both columns 1 and 9, leave in the register an amount equal to the arithmetic sum of the debit and credit entries. As the carriage begins to move in tabulating direction after the cycle in column 9 the upper end of the operating member 4S is engaged by a cam 113, see Figure 2, to thereby rock the member 42 and engage the carriage return drive. Since at this time the member 42 is in the position shown in Figures 3i and 5; the lower end of the operating member 45 is out of' the path of movement of the release cam 68 and the carriage is therefore returned all the way to the right ory column 10` position wherein the lower end of operating member 45 is engaged by a cam 114 to cause disengagement of the carriage return drive. In column 10 the machineperforms a blank cycle to condition the register for a totaling operation and after this cycle the carriage moves to column 11 wherein the amount remaining after subtracting the old balance from the new balance. is printed as a total to thereby clear the register.

It has previously been mentioned that whenmore than a` single debit or credit entry is to be made, the operator, after the carriage cornes to rest in column 5D or 5C, operates the shuttle key such as key 520 of the patent to Anderson No. 2,536,524, rather than the usual motor bar which would be operated if a single entry were being made. When the shuttle key is operated, a link partially shown at 115 (Figure 6), which corresponds to link 536 of the said Anderson patent, is moved rearwardly. The rearward endV of link 115 is bent over as at 1.16 and the bent over portionis. slidably engaged with a reduced section 117 ofthe shaft 401 so that when said link is moved rearwardly,v the portion 1116- contacts the larger diameter portion of shaft 40. and moves said shaftV and the' latch- 8 element 42 connected' therewith from normal position to the position shown in` Figure 6.

Operation of the' shuttle key causes the shaft 40 tol be movedl further toward the rear than is the ease when said shaft is moved due to engagement of the cam 57 with the roller 56. Upon release of the shuttle keyv the shaft 401 is held in its rearward position by the latchelement 42 and latch member 46 inthe manner now tofbe explained. It will be rememberedv that in normal position of the latch element 42 and member 46, the surface 59 of latch member 46 is held in engagement with the surface 60 of latchl member 42 by the spring 49. Upon` extreme rearward movement of latch element 42, a surface 118 of latch member 46 is brought into engagement with the surface 61 of latch element 42 under the influence ofV spring 49. rlhe spring 50- will be attempting to restore the latch element 42 and shaft 401to the Figure 3 position but it cannot do so because of the abutment, of a surface 119 of clement 42 against the shoulder 63.

With the latch element 42 in Figure 6 position the upper end of the operating member 45 is aligned with a cam 120 secured to the bar 39. The cam 120 is located so as to engage the operating member 45 as the carriage moves between columns 5C and 6. Thus after thedebit orcredit amount is printed on the Statement inresponse to operation of the shuttle key-said key alsoinstituting a cycle of operation as explained in the Anderson patent-the carriage begins to move in tabulating. direction but before it gets as far as column 6 the cam 120' engages the operating member 45 to thereby rock the latch. element 42A and' engage the carriage return clutch as previously explained.

Upon the rocking of latch element 42 to engage the carriage return clutch, the spring 50 holds the surface- 119 in engagement with the shoulder 63 until the pointed end of element 42: passes beyond the end of said shoulder and then said springv moves the latch element 42 forward slightly to bring a surface 121 into Contact with the shoulder 65 of member 46. The spring 49 then holds the surface 66 against a surface 122 of the latch element 42.

With the surface 121 in engagementv with the shoulder 65, they lower end of the operating member 45 is out of alignment with theV shut olf cam 68 but is in alignment with another shutoi cam. 123y secured to the bar 39 in position to, contact said operating member asthe carriage passes column 2 in its return movement. Thus the carriagey returns through the Debits and Credits columns and passes. slightly beyond column 2 before the carriage return drive is disengaged. Upon disengagement of the carriage return drive the carriage begins to move in tabulating direction and comes to rest inv column 2.

As the thickened end 44 of latch element 42 is moved upward due tov engagement of the operating member 45 by the cam. 123, the sur-face 121 slides along the shoulder 65 until said surface passes beyond the end of shoulder 65 at which time the spring 50 moves the element 42' forward to bring the shoulder 62' into engagement withthe shoulder 63, the surface 59 of member 46 at this time being held in engagement with the surface 61. This positions the latch element 42 and the members 52 and 83 as shown in Figure 4, which, it will be remembored, is the condition which prevailed after the cam 57' had engaged the roller 56. Thus the operator is ready to make another line of entries and the movements of the. carriage will be the same as when making the first line of entries.

In order to make the machine readily adaptable for other types of work where long tabulating runs are not desired, means is. provided for selectively rendering the foregoing mechanisms inoperative. Referring to Figures l0 and'. 11, the stud 99 extends through an elongated'v slot 124; in amember 125. The member 125 is provided with a manipulatable portion 126 by means of which it mayI be swung to position one or the other ofl a pair of notches 127 and 123 with a pin 129 secured in the carriage end plate 28. A spring 130 extending between the pin 129 and member 125 holds said member in the selected one of its two positions. The latch member 98 is provided with a bent over tab 131 and when the member 125 is positioned with the notch 12.7 engaged with the pin 129, an edge of said member lies adjacent the taby 131 to prevent the counterclockwise rocking of said latch member which is necessary if said latch member is to be effective to lock the stop plate 19 in its elevated position as previously explained. With the member 125 rocked to the position shown in the drawing with the notch 128 engaged with pin 129, said member is out of the normal path of movement of latch member 98,

Having thus described a preferred embodiment of the invention, what is claimed is:

l. In an accounting lmachine having a traveling paper carriage movable in tabulating and return directions and adapted for printing duplicate records on sheets carried by the carriage in side-by-side arrangement, means for controlling tabulating movements of said carriage, power means including a clutch member for driving the carriage in the return direction, operating means for shifting said clutch member into and out of driving position, cam means on said carriage for operating said operating means, said operating means being normally positioned outside the path of movement of said cam means, means on said carriage for moving said operating means into the path of movement of said cam means, and means operable upon engagement of said operating means by said cam means to restore said operating means to its normal position.

2. In an accounting machine having a traveling paper carriage movable in tabulating and return directions and adapted for printing duplicate records on sheets carried by the carriage in side-by-side arrangement, means for controlling tabulating movements of said carriage, power means including a clutch member for driving the carriage in the return direction, operating means for shifting said clutch member into and out of driving position, a first cam on said carriage arranged to engage said operating means to cause engagement of said clutch member, a second cam on said carriage arranged to engage said operating means to cause disengagement of said clutch member, said operating means being normally positioned outside the path of movement of both said cams, means on said carriage for moving said operating means into the path of movement of said iirst cam, means operable upon engagement of said operating means by said first cam to move said operating means into the path of movement of said second cam, and means operable upon engagement of said operating means by said second cam to restore said operating means to its normal position.

3. In a machine of the class described, the combination of a laterally movable carriage, a clutch member for driving the carriage in the return direction, a lever connected to said clutch member to shift the same into and out of driving position, a set of cams on said carriage for operating said lever to cause engagement and disengagement of said clutch member, said lever being normally positioned outside the path of movement of said cams, means urging said lever to its normal position, means on said carriage for moving said lever into the path of movement of said cams, and latch means for holding said lever in its moved position, said latch means being `operable by engagement of said lever by said set of cams to permit the means urging said lever to its normal position to restore said lever to said normal position.

4. In a machine of the class described, the combination of a laterally movable carriage, a clutch member for driving the carriage in the return direction, a lever connected to said clutch member to shift the same into and out of driving position, a rst set of cams on said carriage for operating said lever to cause engagement and disengagement of said clutch member, a second set of cams on said carriage for operating said lever to cause engagement and disengagement of said clutch member, said tirst and second sets of cams being located in diierent planes, said lever being normally positioned outside of both planes, means urging said lever to its normal position, means for moving said lever into the plane of the lirst set of cams, and latch means for holding said lever in the plane of the rst set of cams, said latch means being operable by engagement of said lever by said rst set of cams to permit the means urging said lever to its normal position to partially restore said lever and position same in the plane of said second set of cams and said latch means being operable by engagement of said lever by said second set of cams to permit the means urging said lever to normal position to move said lever to said normal position.

5. In a machine of the class described, the combination of a laterally movable carriage, a clutch member for driving the carriage in the return direction, a lever connected to said clutch member to shift the same into and out of driving position, a rst set of cams on said carriage for operating said lever to cause engagement and disengagement of said clutch member whereby said carriage is driven a relatively short distance in return direction, a second set of cams on said carriage for operating said lever to cause engagement and disengagement of said clutch member for driving the carriage a relatively large distance in return direction, said rst and second sets of cams being located in different planes, said lever being normally positioned outside of both planes, means urging said lever to its normal position, manually operable means for moving said lever into the plane of the first set of cams, and latch means for holding said lever in the plane of the rst set of cams, said latch means being operable by engagement of said lever by said rst set of cams to permit the means urging said lever to its normal position to partially restore said lever and position same in the plane of said second set of cams and said latch means being operable by engagement of said lever by said second set of cams to permit the means urging said lever to normal position to move said lever to said normal position.

6. In an accounting machine having a traveling paper carriage movable in tabulating and return directions and adapted for printing duplicate records on sheets carried by the carriage in side-by-side arrangement, a control plate carried by the carriage, said control plate having tabulator stops for dening different columnar positions of the carriage, a counterstop for cooperating with said tabulator stops, means mounting said control plate for movement from an active position wherein said tabulator stops will engage said counterstop to an inactive position wherein said tabulator stops will not engage said counterstop, cyclically operable means for moving said control plate from its active position to its inactive position, normally ineffective latch means for maintaining said control plate in its inactive position, means on said carriage for rendering said latch means effective while the carriage moves in tabulating direction through a plurality of columnar positions, and for enabling return of said latch means to ineiective position to permit said control plate to return to its active position as the carriage approaches a predetermined columnar position whereby the carriage will be brought to rest in said predetermined columnar position due to engagement of the tabulator stop for that columnar position with said counterstop, and manually operable means for disabling the control of said means on said carriage over said latch means.

7. In an accounting machine having a traveling paper carriage movable in tabulating and return directions and adapted for printing duplicate records on sheets carried by the carriage in side-by-side arrangement, a control plate carried by the carriage, said control plate having tabulator stops for defining different columnar positions of the caniage, a counterstop for cooperating with said tabulator stops, means mounting said control plate for movement from an active position wherein said'y tabulator Stops will engage said counterstop to an inactivev position wherein said tabulator stops will not engage said counterstop, cyclicallyl operable means for moving said control plate fromv its active position to its inactive position, latch means, means on said carriage,v stationary4 means for-operating said means on said carriage to enable said latch means to maintain said control plate in its inactive position while the carriage moves in tabulating direction through a pluralityof columnar positions, and said means on said carriage released by said stationary' means for releasingl said latch means to permit: said control plate toV return to its active position as theY carriage approachesv a predetermined columnar position whereby' the carriage will be broughtY to rest in said predetermined columnar position due to engagement of the tabulator stop for that columnar position with said counterstop.

8. In an accounting machine having a traveling paper carriage movable in tabulating and return, directions, and adapted for printing duplicate records, on sheets carried by the carriage in sidefby-side arrangement, a control plate carried by thel carriage, said control plate 121. having tabulator stops for defining different columnar positions of the carriage, a counterstop for cooperating with said tabulator stops, means mounting said control' plate for movement from an active position wherein said tabulator stops will engage said counterstop to an inactive position wherein said tabulator stops will not engage said counterstop, cyclically operable means for moving said control plate from its active position to its inactive position, latch means for maintaining said control platey in its inactive position while the carriage moves in tabulating direction through a. plurality of columnar positions, means for releasing said latch means to permit said control plate to return to its active position as the carriage approaches a1 predetermined columnar position whereby the carriage will be brought to rest in said predetermined columnar position due to engagement of the tabulator stop-for that columnar position with said counterstop, and means operable automatically in accordance with the position of the carriage for operating said latch means.

Rinsche A Apr. 13, 1926 Sundstrand Apr. 29, 1930

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