US2330512A

US2330512A - Calculating machine

Info

Publication number: US2330512A
Authority: US
Publication date: 1943-09-28
Anticipated expiration: 1960-09-28

Description

Sept. 28, 1943. v.1. L.. MOODY GALCULATING MACHINE Filed Jan. 27, 1940 4 Sheets-Sheet 1 ""\\\\\\\\\\\w\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\vA\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ s INVENTOR Joh/7 l. Moon/y lll-HIPHlH-Hrml BY g ATTORNEY Sept. 28, 194?. J, L. MooDY CALGULATING MACHINE Filati Jan. 27, 1940 4 Sheets-Sheet 2 INVEN'roR Joh/7 Mood/g BY 744 l a M l @Mu/J ATTORNEY Sept. 28, 1943. JI L vMOQDY 2,330,512

CALCULATING MACHINE Filed Jan. 27, 1940 4 Sheets-Sheet 3 INVENTOR .Jo/7x7 L. Moody www lapc/ ATTORN EY Sept. 28, 1943. J. 1.-. MOODY CALCULATING MACHINE lFiled Jan. 27, 1940 4 Sheets-Sheet 4 ,l INVENTOR a/O/7/7 Mood/91 @YJ/ggd ATTORNEY Patented Sept. 28, 1943 CALCULATING MACHINE f John L; Moody,` Oakland, Calif., assignor to Friden Calculating Machine Oo., Inc., a corporation of California Application January 27, 1940, Serial No. 316,005

1 Claim. My invention relates to calculating machines 'having a shiftable register carriage, and is concerned more particularly with the provision of4 improved means for restoring the numeral wheels to zero registration.

It is the general object of the invention to provide an improved construction for effecting zero resetting of the register wherein repeated operation of the resetting means cannot occur if the control therefor is held in active position.

Another object of the invention is to provide improved zero resetting means of the character referred to wherein the linkage connection from the zero resetting key to the parts controlled thereby for effecting the resetting operation can be disabled at the conclusion of the operation in spite of the fact that the key is held depressed.

Other objects and advantages of the invention will be apparent from the following description of a preferred embodiment thereof, as illustrated in the accompanying drawing, in which:

Figure 1 is a longitudinal sectional view through a calculating machine embodying my invention.

Figure 2 is a fragmentary plan view of a machine with the carriage and the keyboard removed.

Figure 3 is a' side elevation ofthe right side plate with certain parts shown in section.

Figure 4 is a fragmentary view ofthe clutch and a portion of the controlling mechanism therefor.

Figure 5 is a fragmentary view of a portion of the shift control mechanism.

Figure 6 is a partial rear elevational view of the machine with certain parts shown in section.

Figure 7 is a fragmentary plan view of a portion of the resetting mechanism.

The invention is disclosed as embodied in a calculating machine having actuating mechanism of the uni-directional, continuous drive cycle type wherein all power 'driven operations are effected by engagement and disengagement of a single clutch'providing the only source of power from the motor of the machine. A calculating machine of this construction is disclosed in the copending application of Carl M. Friden', Serial No. 42,268, led September 26, 1935 (Pat. No. 2,310,281)

The frame of the machine may include a base (Fig. 1) upon which casingA is suitably mounted. Other frame parts include respective left and right side frame plates |2 and I3 which are suitably mounted in spaced-apart relation upon base |0. lSide plates l2 and |3 may be con- (Cl. 23S-63) nected by various cross brackets I6, Il, |8 and I3 which serve various mechanism of the machine. The register carriage 22 is mounted on the frame brackets I6 and I9 by rollers 23 for endwise shifting movement laterally of the machine in either direction to various ordinal positions as controlled by means described hereinafter.

Carriage 22 includes a frame 3| in whichv numeral wheel shafts 32 are journaled to carry numeral wheels 33 of conventional construction. To transmit increments of value to numeral Wheels 33, each shaft 32 extends below the frame 3| and has a ten tooth gear 34 which is actuated by means later described.

Accumulator resetting means Means are provided on the carriage for resetting the numeral wheels 33 to zero registration including means such as a rack bar 4| mounted for endwise sliding movement in the carriage frame adjacent the upper end of the numeral wheel shafts 32 for cooperation with mutilated gears 42 carried by numeral wheel shafts 32; Adjacent gears 42 are axially offset to cooperate with the adjacent vertically offset racks found on rack -bar 4| in the usual manner. The rack bar 4| is moved from its normal position to which it is spring urged in the usual manner to engage gears 42 of any numeral wheel 33 displaced from the zero position and thereby reset the numeral wheels to such a position. Rack 4| may be selectively connected to an actuating bar 46 mounted on the frame 3| for endwise movement by means of interponent 41 (Fig. '7) carried by manual operation handle 48 on rack bar 4|. The

power operation of actuating bar 46 is described n hereinafter.

Revolutions counter Selecting and actuating mechanisms The values to be introduced into numeral wheels 33 are selected by means of a plurality of b anks or orders of settable value keys 6|, only of which banks is illustrated in part in Figure 1. The keys 6| ot each bank cooperate with selecting mechanism including spring urged selecting slides 62 mounted for endwise movement to position gears 63 selectively with respect to the stepped teeth 64 of the associated actuating cyllinder 66. Cylinders 66 (Fig. 2) for adjacent orders are mounted on actuating shafts 61 having suitable bevel gear connections with a transverse drive shaft 68 which is suitably Journaled in side plates I2 and I3. Shaft 68 and shafts 61 are driven cyclically from motor 69 through clutch 1| which may' be driven by suitable gearing 12 (Figs. 3 and 4) from the motor shaft 13. Clutch 1I (Fig. 4) may be engaged or disengaged by oscillation of spring-urged clutch pawl or dog 14 mounted for rotation with shaft 68, and with respect to ratchet 16 journaled on shaft 68 and driven by gearing v12. Clutch control lever 11 is pivoted on side plate I3 at 18 to determine engagement or disengagement of the clutch by releasing or engaging the nose of dog 14 in the full cycle position thereon.

The number of increments transmitted to the pair of gears 63 by the associated cylinder 66 during cyclic operation of the clutch is transl mitted to square shaft 8| on which gears 63 are mounted. Each shaft 8| extends rearwardly of the machine in the usual manner and carries a spool 82 having bevel gears 83 and 84 for cooperation with the numeral wheel gears 34.

The selective engagement of gears 83 and 84 with gears 34 (Fig. 1) is controlled by strap 85 positioned between the gears and mounted by suitable arms 86 for rocking movement with shaft 81. Thus, rocking of shaft 81 vdetermines transmission of said increments to the numeral wheels 33 and also the direction of entering thereon. Any suitable control means may be provided for rocking the shaft 81 to control digitation operations. Shaft 81 may be centralized by opposed spring-urged centralizing arms 9| cooperating with a central stop 92 and engaging a. pin 93 carried by one of arms 86 on 'which the strap 85 is mounted.

Carriage shift mechanism visco'nnected by reversing gearing to respective gear sleeves '|06, |01, the gearing being arranged vso vthat when driven from gear sleeve |06 the rotation is inonedirection, and when driven from gear sleeve |01 rotation is in the other direction.-

The respectivev gear sleeves |06, |01 (Fig. 2) are slotted'for engagement by toothed collars |08,

|09 mounted on the rearward ends of a pair of adjacent actuating shafts 61. The collars |08 .and |09 are provided with slidable driving con.-A

nections ||0 with the actuating shafts. 'Ihe slidv ingmoveinent of collars |08 and |09 is controlled by meansv of rods III, ||2 which extend forwardly of the machine.

Shiftkeys ||3 and ||4 (Fig. 3) for operating the respective controlling rods and ||2 have respective pins I I5 (Fig. 5) for cooperation with respective levers ||6 and II1. Lever ||6 (Figs. 2 and 5) is secured to transverse shaft I I8 while lever ||1 is secured to sleeve ||9 mounted on shaft I|8. Both shaft ||8 and sleeve ||9 are i provided with respective depending arms |20 having their lower ends disposed in front of associated rods III, ||2 respectively, to determine operation thereof upon depression of the associated shift key.

To enable the drive by depression of the shift key the respective pins ||5 (Fig. 3) thereof cooperate with cam slots in a pivoted lever I2| which is pivotally connected at its lower end to the upper end of lever |22 carrying an insulated pin |23 at its lower end. Pin |23 is adapted to close contacts |24 of the motor circuit upon depression of the shift key. Lever |2| is also connected by link |26, (Figs. 3 and 4) with clutch control lever 11 so that such lever is rocked to clutch engaging position upon depression of a shift key.

From the foregoing it is seen that the carriage can be shifted selectively in either direction.

Re-settzng drzveand control mechanism The means for eecting carriage return and resetting of the registers in the carriage may be effected by operation of key |3| (Fig. 3) which operates to first effect return of the carriage to its leftmost position, and then to reset any registers carried in the carriage. Upon depression of key |3|, it islatched in depressed position by a latch slide |32 mounted on side plate l I3 for endwise movement. Slide |32 is urged to the left as viewed in Fig. 3 by spring |33 connected to the pivot pin between slide |32 and its supporting and releasing bellcrank |34. The release of latch |32 is referred to hereinafter. Depression of key |3| serves to enable the shifting mechanism to cause shifting of the carriage to its leftmost position, to enable the resetting drive connection for polwer resetting of the accumulator and the revolutions counter, as well as to enable the drive. Adjacent its lower end, key @3| is slotted to engage pin |36 on arm 31 carried by a transverse shaft I 38 journaled in side plates |2 and I3. Shaft |38 carries arm |4| having a pivotal connection |42 with a forwardly extending pusher arm |43. Pivotal connec'tion |42 is preferably made in the form of an adjustable eccentric to enable adjustment of pusher arm |43. Arm |43 is spring urged in a clockwise direction by a spring |44, so that notched end |46 thereof is in engagement -with rod |41.

Rod |41 (Fig. 2) is spring urged forwardly by a spring |48 secured to a shifting fork |49 on rod |41 and engaging shiftable toothed collar |50 engageable with slotted hub |5| of a cam |52. Cam |52 operates arm |53 which in turn operates actuating slide |54 for the re-setting operation. Slide |54 cooperates with arm |58 secured on the actuating bar 46 for the resetting operation. Arm |56 is not lowered intoengagement with the actuating slide therefor until the end of the shifting operation when the carriage is in the position shown in Figure 6, because of pawl |58 cooperating with ledge |59 to maintain the arm |56 raised as the carriage yis moving` through its next to leftmost position as viewed from the front of the machine. Thus, upon depression of the return and re-setting control key re-setting cannot occur unless the carriage is in IIB, and arm |20 thereon are rocked to shift rod rearwardly and thereby engage the left hand shift.

To enable the drive upon depression of the return clear key |3|, roller |66 thereon (Figs. 3 and 4) is adapted for engagement with cam edge |61 of clutch control lever 11, while pin |68 on the key engages under the upper end of lever 11 in the depressed position to prevent raising of the key until the end of the cycle in which delatching occurs. Lever 11 when rocked to clutch engaging position also operates through link |26 and levers |2| and |22 to close contacts IIB.

, In order to prevent more than one operation of the resetting means at the end of the shifting operation, yieldable over-ride pawl |1| (Fig. 6) which cooperates with shiftl gear |03 in the leftmost position of the carriage to prevent attempted shifting beyond such position during overdriving of the shift gear |03 has an extension |12 overlying a slide |13 (Figs. 3 and 6) mounted on the bracket I9 for vertical sliding movement. Slide |13 when moved downwardly engages one arm |14 of a bellcrank having a depending arm |15 connected by a link |16, with arm |11 depending from a cross shaft |18. Cross shaft |18 (Figs. 1 and 2) carries an arm |19 having a notched laterally offset end |80 which underlies arm |43. Thus, during a cycle of the machine in which the resetting operation is effected, arm |19 will be operated to lift arm |43 out of engagement with rod |41, so that the rod |41 is restored to its inactive position to disconnect the drive means. "Also the lifting movement of arm |43,(Fig. 1) lifts pin |6| out of engagexnent with arm |62 todisable the control linkage of the left hand shift mechanism. Thus, even though the return-clear key be maintained depressed, only one cycle of resetting operation can occur.

I claim:

In a calculating machine, having a shiftable register, cyclically operable means for effecting return of said register to a predetermined position, coupled with cyclically operable means for performing a resetting operation on said register, and drive means including a cyclically operable clutch and a drive establishing connection for said resetting means driven by said clutch, said resetting means being operable during overdriving of said returning means, a manually operable key, a control linkage from said key to said clutch, a control linkage from said key to said drive establishing connection, means in said last-named linkage spring-urged to active position, and means operated by said returning means for moving said spring-urged means to inactive position to disable the linkage for said drive establishing connection, said means being operable with said key held depressed and with said clutch engaged.

JOHN L. MOODY.