US2334431A - Calculating machine - Google Patents

Description

Nov. 16, 1943. J. l.. MOODY 2,334,431

4 CALCULATING MACHINE Filed April 20, 1942 4 Sheets-Sheet l ttormg 4 shets-Sheet 2 Nov. 16, 1943. J. L MOODY CALCULATING MACHINE Filed April 20, 1942 m s@ w M m o t o 2 M 4 n ,m Y u w J m w 1. NN m o m m RX lmuHrm.. .n m. HM m m A K L /l m n.

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. ulmlmHrnH mw, Il Y Y MM d. si. M MN s a/ ttorneg CALCULATING MACHINE John L. Moody, oakland, com., assignmto Friden Calculating Machine Co., Inc.,y a corporation of California Application April 20,1942, Serial No. 439,644

5 Claims.

This invention relates to calculating machines and is concerned more particularly with the provision of an improved register construction and resetting mechanism therefore to facilitate calculations such as payroll work.

In many calculations, for example in payroll work, it is desirable to multiply the rate paid for the Work by the number of hours of work to obtain the amount to be paid each employee.` It

is also desirable simultaneously to provide a total 10 of the amount paid the various employees in a. particular department, to provide a correct total of the payroll insuch department. In each type of calculation it is vdesirable to complete the calculation to the nearest half-cent and to per- 15 form this completion in such a lway that the payroll total will be correct; that is, each individual calculation in the't'otal will be performed to the nearest'halfcent;

I t is a generalobject' fore;V to provideimproved means 'for making pay roll calculations." l

" Another object of the n iriveri'tionyisE to :provideaf i calculating machine in 'which th isiimgi im ation` serves tof-enter one or more halice'ntval at desired A'ordersy in theaccumulator."

(oi. 23a-144) indicated by the line 8--78 in Figure 6, with certain parts omitted;

Figure 9 is a perspective view of rack and associated parts;

Figure 10 is a schematic plan View of the half the resetting .cent mechanism associated with the numeral wheel, the view being indicated by the line Ill-l0 of Figure 4;

Figure 1l is a schematic view similar to Figure l0 showing the parts at the middle of a resetting operation; i

Figure l2 is a schematicv plan view similar to Figures -10 and 1l but showing the parts at the end of a resetting operation in which the half cent mechanism has been active; i i yFigure 13 is a. schematic plan view of a portion of the/half-cent mechanism, the View correspondi 1 ing to the position of theparts shown inFigure 10 [f the inver'ition; theref- 20 Another objectlof the invention is to providef. n

'resetting mechanism which "win enter-values iii thejaccumulatorfas a partr of thetresf'ett,ing'.opera--v`4 "nothe'r object of theinvention is to provvide a calculating machine for vattair'iirig the foregoing j objectsv and provides 'a simple; .inexpensive "cron-vy Other' objects v will be apparentffr0rn1 .1tli`e foll'o'v'l'itrgy descrip oa preferred embodiment as'` illustr ac mp'an'ying drawingsgxfin wiiioh Y 1,0m *y iigeigiis:a'vplanfvevi'pfjth? Si, i. v with he cover removed-to illustrate the etails Cidiby the line-F14 inFigurevm T- f i, Figure ,5" is i al zsectionalgviewtakeni along the;` line 5 5 of liigure'tifr g i :Figure 6 iis' a rear ViewA of thev left: end .ofthe f carriage asxvi'ewed in'lFiguref2; i i i J f i ligure .'11 ist ya n vertical sectional .View indicated by the line 'l-l in Figure 6;

taken as Figure 8 is a sectional detailed plan taken as Il cipria new iakrias;

Pile' their disclosure` is not necessary tofan iinfdjeijff` and taken along the line VI3--I3 oi Figureii;

Figurel4 is a view similar to Figure 13 lwith ythe parts corresponding to the position shown in Figure-11;. a f

- Figuren is view similar to Figures 13 'and 1`4` with the parts Apositioned similarly, to- Figure 1.12..

The invention. is illustrated as embodiedin the typ e' .of' calculating machine disclosed in the Ipatent tofC'arl M. Friden;y 2,229,889, dated January 28, 194i, `as] :modifledlinfthe copending applica: tiofn'sy of .Carl M. Friden, Ser. No. 240,269, iiled November 14;]19'38yand Carl MQ Frid'en and 5.

Anthony B. AMaclfiladz), .Serial No. 348,965; iiled iGenerally, such'calculating :machines includey drive' :means and actuating means lwhereby add-r ing subtractingjmultiplying and dividing opera-,- "jean be 'car'ried on with resygiect'tofanlac1 ulator mounted in a shitable carriage. Fig-f hows a' vcalculating Aiiiac'hine having abody egister carriage?! is yrnourrte'gil ich se jshiiting movement. Thefmafchine is',V

controlled during'` calculating Clear ley. Vlil is provided forrcontrolling releas inclu ing; shiffft v keys I6 'l a above mechanisms' are generally conventional 'and' standing ofthe yinstant invention: vone fori-that" reason only the shiftable register carriage has been disclosed in this application.

e "Suitable `rfneclzhanis'in u Y n y y y l1 is' provided ion Shtighe Cerrgfrm orderfterdf? i I8 controls vsuitable vmeans for causing resetting ofthe accumulator by power drive means; jfl'lie axially along their shafts 28.

Referring to Figure 2, a shiitable register carriage indicated generally at 2| includes the carriage frame 22 and the transverse bar 23 supported in spaced relation on the frame 22 by similar end plates 24, onlyone of which is shown. The carriage provides a mounting for the numeral wheels or dials 26 of the accumulator and 21 of the revolutions counter.

Referring to Figures 42 and 4, each numeral wheel 26 is' carried by a numeral wheel shaft 28 which is suitably journalled between the opposed halves of the carriage frame 22. At its lower end the numeral wheel shaft 28 carries aten tooth gear 29 by means of which values can be introduced into the accumulator as disclosed in said patent. The alignment of the desired figure on the numeral wheel dial with the sight opening 30 (Figure 1) in the cover 3| of the carriage is maintained by a suitable centralizing means including a ratchet tooth gear 32 (Figure 4) mounted on numeral wheel shaft 28 cooperating with a spring pressed ball 33. This mechanism is conventional.

To enable resetting of the dials 26 of the accumulator, each shaft 28 carries a resetting gear 34 (Figures 4 and 7) with alternate gears 34 offset Each gear 34 is mutilated as seen in Figure 13 for example, and the mutilated portion is in the position shown in Figure 134 with the associated dial standing at zero.

To perform the resetting operation in connection with the gears 34 of the dials 26 a resetting rack is provided as shown in Figures 4 and 9 having spaced alternately vertically offsetgear racks 36 formed on parallel bars 31 and 31a of the racks which are secured in spaced relation by suitable spacers and studs 39. Each rack 36 has a cutaway portion 4| at one side thereof and a raised portion 42 at the other side thereof. As seen in Figure 9, the resetting rack is split with a right-hand portion 31, 31a and a left- hand portion 38, 38a. The right-hand section 31, 31a is associated with the eight lowest order dials 26 while the left- hand section 38, 38a is associated with all dials of higher order.

As seen in Figure 4, the resetting rack is mounted for endwise movement in the carriage frame past the resetting gears 34 of the associated dial, and when moved endwise from the position shown in Figure 2 for example, will serve to rotate any dials which are displaced at zero by engagement with their resetting gears 34 until the multilated portions of the resetting gears are aligned with the resetting rack when the drive will cease. In order to insure stopping of the numeral wheels or dials at zero without overthrow, a stop slide 46 (Figures 2, 4 and 10) is mounted upon the upper surface of the carriage frame 22 having a tooth 41 for engagement with a stop ear 48 carried by the dial shaft 28 during the resetting operation. The slide 46 is normally held inactive in the position shown in Figures 6 and 10 by a spring 49, and is temporarily moved to active position during a resetting operation as later described.

To operate the resetting rack 31, a post (Figures 2, 3 and 9) is provided having a sleeve 52 mounted thereon carrying an adjustable handle 53. Sleeve 52 (Figure 2) carries an arm 54 for engagement with a pin 56 carried by an operating slide 51 slidably mounted for endwise movement on the carriage frame. The slide 51 is operable by power operated means of the character be selectively coupled disclosed in said application, Serial No. 240,269, or is operated manually when the handle 63 is moved to the right as viewed in Figure 2 because of the engagement of part 6| with overlapping end portion 51a of the slide 51.

To operate the stop slide 46 during resetting, the slide 51 has a pin 58 (Figures 2 and 10) which lies in front of the cam surface 59 of the bellcrank 6| pivoted at 62 on the carriage frame and having a pin and slot connection at 63 with the slide 46.

As previously explained, the resetting rack 31 is associated only with a lower order group of numeral wheels or dials so that operation of handle 53 always operates to reset the lowermost eight dials of the accumulator. The higher order dials can for simultaneous resetting operation with the lower eight dials. As seen in Figures 6 to 8, the resetting rack 38 associated with the higher order group of dials is provided with a laterally extending arm 66 which extends through an aperture in the carriage frame and is provided with an upstanding ear 61. A bracket 65 fixed to frame 22 carries a post 68 having a transverse pin 69 therein and receiving a sleeve 1| provided with a disc 12 having transversely aligned seats for the pin 69. Sleeve 1| is spring urged downwardly by spring 13 held in place by operating handle 14 and a suitable retaining screw. The ear 61 of arm 66 (Figures 6 to 8) is adapted for engagement by hook 16 adjustably pivoted at 11 on an extension of slide 51 and urged by spring 18 against a stop pin 19. As seen in Figures 6 and 7, tooth 8| of hook 16 is engaged with ear 61 so that the resetting rack 38 will be moved upon operation of slide 51. As seen most clearly in Figure 8, disc 12 carries a cam extension 92 which is adapted to be swung from the full line position shown in Figure 8 to the dotted line position where it will engage the camming surface provided by the back face of tooth 8| to lift the `hook 16 and tooth 8| above the ear 61. In this lifted position of tooth 8|, endwise movement of slide 51 is ineffective to move the resetting rack 38 with the rack 31. Thus, if the handle 14 is adjusted to position cam extension 82 as shown in dotted lines in Figure 8, resetting of the lowermost eight orders only of the accumulator will occur.

As previously stated, in payroll work it is desirable to enter half cents to round oif values of a payroll computation to the nearest cent. Two such mechanisms are provided for selective operation as disclosed herein, one of those being associated with the number 2 dial, while the other is associated with the number 8 dial, i. e., the highest order dial operated on by the resetting rack 31. The two half-cent mechanisms are similar and only one will be described in detail.

To provide for selective entry of an automatic half-cent, means are provided for selectively causing the resetting rack to return a selected dial to its "5 position rather than to its t0 position. As seen in Figures 4 and 5, the dial shaft 28 of the number 2 dial is provided with a tooth 9| which is centrally located with respect to the cutaway portion of the resetting gear 34 to be facing the resetting rack 31 in the "0 position of the dial. The resetting rack 31'has an actuating pawl 92 pivoted on its bottom surface at 93 and having a tooth 94,1or engaging the tooth 9| during the return movement of the rack 31. Pawl 92 is biased to place the tooth 94 active by spring 96 connected between an ear of pawl 92 and an ear 91 on rack 31. Pin 98 on rack 31 engages an apertured portion of pawl 92 to provide a stop. With the parts'shown as positioned in Figures 5 and 113, movement of the rack 31 to the right will cause gear teeth 36 thereof to engage gear 34 if the associated dial is out of its zero position and turn the dial to zero during movement of the rack to the right as viewed in Figure 13. During this movement, the pawl 92 yields as it passes over the tooth 9|. Figure 14 shows the parts at the end of the travel of rack 31 'to the right. During return movement of rack 31 under thev influence of its spring, tooth 94 willengage single tooth 9| and cause the gear 34 to mesh with the gear teeth 36 at a time so that the gear teeth 36 will rotate gear 34 and the associated dial to its five position as shown in Figure 15.

Means areprovided for preventing overthrow of the dial when it is adjusted to its five position.

Referring to Figures 4 and 10, an overthrow preventing pawl is pivoted on stud |02 -mounted on the carriage frame and extending through a slot in the stop slide 46. Pawl |0| is connected by a spring |03 with a stud |04 on stop slide 46 so that upon movement of slide 46 to the right from the position shown in Figure 10 to that shown in Figure 11, pawl |0| is oscillated clockwise as viewed in Figure 10 to the position shown in Figure 11,for engagement with a stop tooth |06 of disc |05 on dial shaft 28. Stop-tooth |06 corresponds to the position of the associated dial. It will be noted that stop slide 46 is maintained active throughout the greater part of the return stroke of the resetting rack because the pin 58 as seen in Figure 11 at the end of its stroke to the right lies against a straight portion of the bellorank 6|.

To prevent rebound of the dial in the opposite direction, the slide 46 (Figure 10) has pivoted thereon at |01 a stop pawl |08 urged against the stop pin |09 by a spring Pawl |08 has a fiat surface ||2 for engagement with a cooperating fiat surface ||3 of disc |05 carrying tooth |06. As seen in Figure 11, with the stop slide 46 moved to the right, pawl |0| and pawl |08 are both urged to active position, pawl |08 yielding however to permit movement of tooth |06 past the same during the setting to the 5 position. Figure 12 shows the position of the parts` after a resetting operation to "5 and the stop slide 46 has moved back under the influence of its spring so that pawls |0| and |08 are both free of the disc |05.

To provide for selective operation of the automatic half cent mechanism, pawl. 92 has an arm ||6 (Figures 3, 4 and 13) having a cam nose for engagementwith the lower end of a settable control element ||1 which is mounted for sliding movement on the carriage frame`22 by bracket H8. In the raised position of controlvelement ||1 shown in Figure 4, the automatic halfecent mechanism vis operative. However, ,ifl the settabie element ||1 is moved downwardly so that it is latched in 'its lower position by the .engagement of spring pressed ball ||9 with the uppermost of its associated locating grooves, its lower end will lie in the path of the cam nose of arm l||| of pawl 92 so that the pawl will be rocked condition of .the parts, the numeral wheel or dial having the automatic half-cent mechanismy will be restored to zero during each operation.

As seen in Figures 1 and 2, a second half-cent mechanism is provided at the eighth order dial under control of settable element |1a.

I claim: l

1. In a calculating machine having a register comprising aseries of numeral wheels, resetting mechanism for said wheels including a rack having a set of teeth foreach of said wheels, said rack being operative upon movement in one' direction to restore said wheels to zero, and means for causing driving movement of a numeral wheel by said rack during its return movement.

2. In a calculating machine, a numeral wheel having a mutilated gear thereon, a rack mounted for back and forth movementrelative to said wheel and engageable with said gear in one direction of movement to move said wheel to a predetermined position thereof if displaced therefrom, and selectively operable means for causing engagement of said rack and said gear during movement of said rack in the other direction.

3. In a. calculating machine, a numeral wheel having a mutilated gear thereon, a rack mounted for back and forth movement relative to said wheel and engageable with said gear in one direction to move said wheel to a predetermined position thereof if displaced therefrom, and means carried by said rack for turning said wheel Vduring movement of said rack in said other direction to cause engagement of said rack and` said gear.

4. In a calculating machine, a numeral wheel having a mutilated gear thereon, a rack mounted for back and forth movement relative to said wheel and engageable with said gear in one direction of movement to move said wheel to a predetermined position thereof if displaced therefrom, means carried by said rack and springurged to active position for turning said wheel during movement of said rack in said other direction to cause engagement of said rack and said gear. and a settable control element for movingsaid spring-urged means to inactive position.

5. In a calculating machine, a register comprising a series of numeral wheels, means for resetting said wheels to zero position including 'a resetting member moved from an initial position to perform the resetting operation and returned to ysaid initial position at the conclusion of the resetting operation, and means for setting one of said numeral wheels to a predetermined position other than zero comprising a device for causing transmission of movement from said resetting member to said numeral wheel during return of said resetting member to said initial position.

JOHN L. MOODY.

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