US988144A - Motor mechanism for calculating-machines. - Google Patents

Description

R. REIN. MOTOR MEGHANISM FOR GALOULATING MAGHINES.

APPLICATION PILBD'AUG s. 1910.

988,144. Patented Mai-, 28,1911.

Wdh-5525:

it appe ROBERT REIN, @E BERLIN, GER-MANY.

MOTOR MECHANISM FOR Specicatoii. of Letters etent.

Application filed Ilngust 19H).

CALCULATINGQEAGHXNES.

Seriell No. 576,134.

To all whom it may concern:

Be itlnown that I, Ronmi'iY REIN, n subject oi. the German Emperor, residingW at Puttknmerstrasse 19, Berlin, Germany, have invented certain new and useful lmpro-vements Relating to ll'otonlllechanisin tor Calculatinffihlachines; and l do hereby de- Clare the ollowing to be a toll clear, end, exact description got the inventiona such es will enable others skilled in the art to which rtoins to make and use the same. lVith calculating machines provided with handles for carrying out the operations of multiplication as at present constructed, has been necessary to give the actuating hondle as many turns With vthe hand as the cross sum of the factors. In order to save the 'tedious Work thus involved when performing several processes of multiplication one otter the other, it has already been proposed, instead of using a handle, to provide nine sets ofniechanisms for eecting multiplication by the numbers from l to 9, so that by put.- ting the sets into :tction motor mechanism has been brought into operation for actuating the counting,1 ivheels to an extent, corre spending to the number represented on 'the key controlling the particuloit'set. ln these cases, a continuously Working motorhes been provided and o movable member for torming connection between this motor and 'the counting,- mechanism of the calculating` inachine so that by the shittingl of such movable member in one direction the coupling of the motor with the counting mechanism oit the calculating` machine has been eftlectedj While by shitting such member in the opposite direction the uncoupling has been eifected.

The motor mechanism forming, the subject mutter ot' the present invention belongs to the class of such mechai'iisnis just indis cated.

The characteristic feature oit the invention consists in providing; as the member :for trnnsniittrll. the motion from the inotor to the "zounting mechanism oit the cnlculating machine a worin which is rotatably mounted and capable ot .longitudinal movement, which worin is brought into operation by pushing down one of a number et niultiyilying keys. Un this worin/is :i corresponcing internally7 threaded nut which is movable on the worin in the direction of the axis there of, so that as the worin rotates the nut moves forward until it reaches the depressed l multiplier hey ond releases safne, whereupon the transmitting member (that is thc worm) andthe releasing1 member ore brought hack to their original positions.

@ne methoo out carrying` out` is shown in the accompanying drawing,` by wey of exemple.

ln the drvvinge Figure l is a plan; Fig. is a longitudinal cross section teken on the line t? B, Fig. l; 3 e-cross section on the line C, D, Fig: l; and Fig. e is a perspectiv'e view of the "strip for moving the yworin longitudinally. find one ot the multi* nlying` keys in position to enter oneol the holes therein. y

The same numerals ol reference are ein- `ployed to denote the some parts -in ull the View". y

l is the framework on which the calculating machine, which is to be driven by the moto-rv is mounted.

.2 is o continually rotating` motel located under the lower part of the traineworl-z l, which motor drives, through suitable intermedinte gearing-l, a bevel wheel 8 suitfibly is another bevel Wheel which is loosely mounted on theI end ot'a Worin hereinafter referred to end which is held in rotatable ein reglement with a bearing in the casting l and meshing with a gear wheel G, see Fig. ovhich the bevel Wheel 5 to the counting' mechanism .7 et 'the calculating machine, when one ol" the multiplying keys is depressed, suitable intermediate gearing @j 'S being interposed to snit requirements.

'.lhc multijplyinleys 9 corresponding 'to the numbers from l to 9 are located side by side in recesses l0 inthe framework l, und fire pressed upward by ineens ot spirul springs Ill. tending` to keep them in the dis*- engjnpged position. Below the multiplier keys il is the niei'uber for transmittingihe motion. This consists of @norm l). passing through bearings in the tran'ieuf'orl; l so es to be capa-- ble of rotation and also, of longitudinal movement.. The pitch of the Worm 'is equal 'to the distance between two of the multiplier keys. rl`his Worin is provided at one or its ends (that to the right) with a couplingr clutch lil. which rests in the coupled position aesinet e corresponding' notch in 'the hub of `the bevel Wheel :it its other end is keyed a ring le., having a clutch l5 which engages with a corresponding; notch on the hub of the invention located between benrino's in the framework.'

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' formed .with a forked the Wheel 5, so that in the coupled position lworm .A1-'2 by the depression of one of the multi lier keys 9, and then to effect the uncoupling and return of the same to the starting position after a number of rotations corresponding'to the number on the multilier key which has been depressed, the folowing arrangements are provided. In the drawings lone of the multiplying keys is shown depressedand the Worm 12 shifted and, coupled with gear wheel 3, to transmit motion to gear wheel [5. 16 is a strip located beneath the multiplier' keys. This strip is ortion which enibraces the worm 12 an operates between guides on the same, in such a way that the worm can rotate freely but is obliged to move longitudinally with the strip 16. This strip 16 has nine holes, corresponding to the nine multiplier keys which holes are normally 'out of vertical ulinenient with the multiplier keys in the uncoupled position of the worin 12. The multiplier keys 9 are provided with cone shapedy ends 17 which, when the keys are depressed and be 'in to enter -the holes move the strip. 1G engitudinally to the right, carrying with it the worm 12 so that the clutches 1o and 13 take into thel corresponding notches of the bevel wheels 5 and 3 and coupling is effected. In order to elect the uncoupling at the correct moment correspondin with the number on the multiplier key which has been depressed, a nut 18 is provided on the worm, which nut is carried along on a guide bar which prevents it rotating. This nut 18 runs on "the thread of the worm 12 when the worin is rotating after coupling has taken place, in .a orward'direction until its inclined face 20- reaches the cone shaped end 17 of the depressed key', and pushes the same' upward. The forward movement of the nut 18 at the same time winds up a spring 22 which passes around the hub of a segmental wheel 21. The nut 18 is connected with this segmental wheel 21 by a wire or cord 23. Therefore, as soon as the nut 18 with its projecting face 20 presses up the depressed multiplierv key, the strip 16 which has become free again moves the worm 12 under the influence of the spring22, first longitudinally toward the left so that uncoupling is effected, and then as the nut, 18 is pulled by the spring 22 it brings the uncouple'd worm 12back to its starting position. .fis the pitch of the worm 12 corresponds exactly to the distance of two of the multiplier keys from one another, the movement of the nut 18 from one multiplier key to the next corresponds eX- actly to one revolution of the worin 12. As

in the starting position the iirst multi lier key is distant by one turn of the Worm rom the nut 16, and it is obvious that on depressing the first multiplier key the worm 12 'makes exactly one revolution, after which the release is eilected. It the seventh mull tiplier key is depressed on the other hand it makes seven revolutions before being released, and so on. It is moreover obvious thatwitli this gear, in spite of the fact that the motor is continually running, the machine can be worked with a handle because so long as the multiplier keys are not actuated there is no coupling between the counting mechanism of the calculating machine and the motor.

What I claim and desire to secure by Letters Patent of the United States of America is 1. In motor mechanism for calculating machines comprising a constantly rotating motor and means brought into operation by the depression oi a kc` for coupling the count-ing mechanism. with the motor, and uncoupling same; the combination of a worm adaptedl to be brought into the coupling position hy the-depression of a key so as to couple the motor to the counting mechanism, the said worm having a nut adapted to slide axially along such worm and to be carried along by the rotation of the worm until it comes into contact with a. depressed key'and releases saine, with means forl then returning the worm to the unooupled position and the nut to thestarting position substantially as'described.

2. -In motor mechanism for calculating niachinos comprising a constantly rotating nio: tor and means brought into operation by the depression of a key for coupling the counting mechanism with the motor, and uncoupling same; the combination of a worm so mounted as to enable it to be laterally displaced and to couple up the motor mecha- 'nisin with the calculating mechanism in one position and 'to be disengaged in another position, a strip adapted to embrace said worin and cause it to move longitudinally, a. row of multiplier keys above such strip, conical ends to said keys, a row of holes in such strip and coming to one side of the axes of the keys in the uncoupled position s0 that on depressing' one 'of such keys the conical end enters one of the holes in the strip and brings the worm into the coupling position substantially as described. y

3. In motor mechanism for calculating machines comprising a` constantly rotating motor and means brought into operation by the depression of a key for coupling the countin mechanism with the motor, and uncoupling same; the combination of a worin so mounted as to enable it to be lbngitudinally displaced and to couple up the motor mechanism with the calculating ico anism in one position and to be disengaged in another position, a strip adapted to em brace said worm and' cause it to move-longitudinally, a row of multiplier keys above such strip, conical ends to said keys, a row of holes in such strip and coming to one sideO of the axes of the keys in the unooupled position so that on depressing one of such keys the conical end enters one of the holes in the strip and brings the worm into. thecoupling posltion, a nut sliding on a guide and embracing the said worm, a spring adapted to be put tension by the along under the action of it reaches a depressed mul-1. releases same, whereupon the sprin the Worm and the nut to the starting' tion substantially as described In testimony whereof, l" aiiix my ture, inpresence of two witnesses.

.'RQEERT l?? Witnesses:

. HENRY Hksrnn,

VVoLDEMAR Hann@ conica of this patent may be obtained for ve cents each, by addressing the Gommisszener Washington, .'D. C,

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