US1115950A - Calculating-machine. - Google Patents

Description

R. H. MAHOHANT.

CALGULMIM MAUMNE.

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R. H. MARCHANT.

CALCULATING MACHINE.

APPLICATION IILED11PR.2,1Q14. f

1,1 15,950. Panama No1/.3,1911

3 SHEETSl YSHEET 2.

INI/ENTOR,

WI TN ESSES R. H. MARCHANT.

GALCULA DING MACHINE.

APPLICATION FILED Alum, 1914.

Patented Nov. 3, 1914.

3 SHEETS-SHEET 3.

WI TNESSES:

1N VEN TOR, 4 AMM, B Y

A TTORNE Y MsCUsATINGMAsSINTE Application inea prii 2, 1914. seriaria2aoaa i To all whom it may concern: j

. Be it known that I, RODNEY H. MAR- GHAM, a citizen of the United States, residing at Oakland, in the county of'Alameda Aand State of California, have invented new and useful Improvements in Calculating-` Machines, .of which the following isa speciiication. l

This. ,invention relates to improvements in calculating machines, especially those which perform the operations of multipli-y cation and division, and the object of the' invention isto provide an improved machine having a main shaft, preferably power-driven, which will be automatically arrested, after a variable predetermined number ofrevolutions of said shaft. l

ln the accompanying drawing, Figure 1 is a broken side view of my improved apparat-us 1:' Fig. 2 is a brokenplanfview/thereof; Fig. 3 is a vertical section onthe line 3-3 of Fig. 1 Fig.` 4 is a vertical 'section on the line of Fig. 1; Fig. '5- isa vertical sec-y tion on the line 5-5 of,Fig.-1, certain parts being broken away; Fig. 6 is a side View of a drum, partly broken away. l

'Referring to the drawing, 1- indicates a base, onwhich are standards' 2, 3 through which extends a shaft 6 on Wliich-arelse cured wheels or disks' from which are eX- tensible pins 4 and transfer pins 7, movable in a direction parallel with their axes, said pins 4, 7 being adapted to rotate indicating wheels in the manner well known in vthe art and illustrated in Patent No. 514,725,

dated Feb. 13, 1894, lV. T. vOdhnerl 8 indicates almotor, upon the shaft) of which is slidable a clutch 11 keyed to said shaft and having a friction cone 12 engaging an internal friction cone-13 upon a short shaft 14 extending through a bearing in an upright 16, said shaft carrying on the other side of said upright a gear wheel 17 meshing with a gearrwheel 18 on a stud shaft 19 carrying a `pinion 21. Said pinion 21 meshes `with v a gear wheel 22 secured to a drum`23, secured toa shaft 24Jhaving its bearings in the upright 16 andjjinf--ahfnpright 26, and in line-with the shaft 6ta-:Upon said shaft 6 is slidably keyed a eliitch27 operated 4by a lever 28, and which-can be operatively connected with theshaft' 24, so that said-'shaft (Lis then rotated directlyby the shaft 9. When the clutch'is slid on the shaft 6 asffarfas possible kfrom-fthe motor,

said shaft 61s their-driven' ima direction ,re

ruiter wheels 29,31, anda miter Wheel 32 meshingywith both initer wheels 2 9 vand 3l. The ldrum 23 is thicker.. .in its A,central portion `to form a circular shoulder 33 on. one side, which forms a gearing ,for a ring4 3,4.- rotatable on said shoulder, and of a. thickness equal to the height of said shoul-l der, and provided with a projecting iinger 3G for the purpose of enabling it to be con-f veniently rotated by hand. A circular plate 3:5 secured `to the drum serves to hold the ring-34 1n place.

one of which can enter the wedgesshaped outerl end of a pin 38, pressed outwardlyby a coiled spring 39, said spring and pin beingI received. in a cylindricaly socket 41, partly in the thicker central portion of the drum and partlyin the marginal portion thereof.A As the ring 34rotates upon saidl Patented Noyn, ,19.14.

verseto its former direction by means of.

i The inner edge of vsaid' ring is formed with ten notches 37, into any.

shoulder, the pin 38 is repressedzjnto saidy i socketby the advancing side of one of they Vnotches and then is` pressed out: by. said spring into thenext succeeding notch, said pin thus. serving to retain the 'ring in the position to which it has been last rotated; Said ringhas aconcentric arcuate slot `42, through which extends a block 43, slidable in a bearing therefor formed in the drum. The outer end of said block is sufficiently narrow to pass into said arcuate slot, but` the innerend is wider, and 'is prevented passing through said slot by means of abei'eled shoulder 44 on its surface next the axis ofthe drum. The forward end of the arcuate' slot is extended, as shown at 46, to form von its outer side a short shoulder 47 adapted to engage a shoulder 48 upon the face4 of said block remote from said axis, and act as a ,wedge to force the block outwardly in a direction parallel with the axis, this nioifernent being permitted to take place by the fact that said extension 4(5"is also enlarged in a Vdirection toward said axis,as shown vat 49, so'as to permit the shoulder 44 on the innenface tol project into and through said extension. By this construction, wlien;the yring arrives at the end of lits oscillating movement, that is, when the slot has beennioved first in a forward und then in'a rearward direction, the forward end of the slot causes the block to be prog jectedbeyond they face ofthe ring to an ea-` tentponsiderably greater than before.

with ten notches 51, which are adapted to engage a spur wheel 52 rotatably mounted on a short screw 53 screwed into a attened portion 54 of the drum, the outer portions of the spurs of said. spur wheel being extended to form fingers 5G. of the iinger the ring 34 is rotated through an are corresponding to any desired num- "berof spaces between said notches, then the spur wheel 52 is also rotated through a' corresponding angle, and the arcuate slot is moved through a corresponding angle, it being observed that, immediately upon the forward movement of the arcuate slot a shoulder 57 of the extension 49` of said slot engages the shoulder 44 on the thicker or inner portion of said block and withdraws said block to a position in which only a. portion thereof extends beyond the ring. New, the ring having been turned through the angle mentioned, the motor is started by means to be presently described and the drinn rotates in the same direction as that in which the ring was rotated thereon; One

' ot' the fingers 56 of the spur'wheel always right Q6, and the spur-wheel is thereby rotated through the angular distance between vtwo fingers, causing a corresponding backward rotation of the ring 34'throu'gli the distance between two notches, and causing the arcuate slot to travel through a corresponding distance with reference to the block. When the drum has rotated as many revolutions ascorrespond to the number of notches through which the ring was rotated to set the device, the end of the arcuate slot arrives at the block and the shoulg der 47 engages said block, and as before explained, projects the block `farther from the face of the plate. lThe block is formed with a head 40 extending in the circumi'en 'ential direction of the arcuate slot.

The head 40, being now projected, first impinges against the beveled end of a pin 61 slidable in a. bearing in the upright 96 and normally projected therefrom by a. spring 62, forcing said beveled end backward, and passes the same, the spring immediately thereafter projecting said pin, so as to .form a lock for holding the head in its position in which it has passed said pin, the'obj'ect ot which lock will be presently explained. As soon as said head has passed the pin, it strikes against an arm 63 secured to a shaft 64 having its bearing in the upright 16, and rocks said shaft 64. An arm 66 extends from theiother end of the shaft 64, and engages the beveled or cam-shaped end 67 of a rocking lever 68 pivoted upon a forked extension 69 from the upri ht 16, and having an upper forked portion 1 engaging the clutch 11. Thus the rocking ofthe"shat64lrocks p Then by means presses back al pin 72 slidable ina horizon-y tal bearing in a block 73, and normally projected by a coiled spring 74 in said block,

. and compresses said spring, the compression of. the spring serving to absorb the momentum of the moving parts. 'Said pin has screwed thereinto a vertical screw 76, the head of which iinpinges upon one end of a lever 77, pivoted on a `short standard 78 upon the base 1. The other end of said lever '77 is formed to provide a cam or wedge 79 which engages a canrshaped end of a lever 81 pivoted upon a short standard 8:2 on the base, theupper end of said lever 81 extending into a.A roove in a sleeve 83 around the shaft 6. i aid sleeve 82 is normally pressed away from the motor by a coiled spring 84, of'- which one end abuts against said sleeve 83 and the other end is pressed against a nut 86 screwed lon' a threaded portion of the shaft. The movement of the head of' said screw 76 against said lever 77 causes the lever 81 to'move'in such a direction asto force the grooved sleeve 83 toward the motor against the force of said compressed spring 84. In a recess in 4the end ofthe sleeve remote from the spring is received lthe outwardiy extending head 87 of a bar 88 slidable in a groove in the shaft 6, said bar 88 having in its outer edge a series of notches 89 corresponding in' width with the several disks 5. Said disks. are keyed to the shaft 6 and are suitably 'spaced from one another and have between them setting .rings 91, each provided with a suitable finger 92 for rotating the same, and rotatable inI circula-r shoulders on the disks. in each disk section is hereda cylindrical hole 93 which receives a pin 94 and a coiled the pins 94 of the respective disks 5, so that the inner end of each pin, upon being re. pressed by the rotary movement of the corresponding setting ring 91, can enter a cor' responding notch 89. Consequently' said' setting rings can be rotated to set themav chine for calculating. Butwhen the barl` is most position when the drum is rotated, and

in its 'outermost position When the drum is at rest.

The shaft 6 is positively brought to rest by the following mechanism. The upper portion of the arm 63 engages a -beveled shoulder 9S of a vertically slidable starting plate 99, guided by means of-two screws 101 extending through slots in said plate and screwed into said upright 26, so that the forward motion of the arm A63 raises said starting plate. Said starting plate has a bent slot 102, which is `engaged by a re` duced end of a latching Vlever 103, pivoted on a vertical'pivot `in a horizontal extension 101 of the upright 26, vand received Within a groove in said extension. the shapeof the bent slot the upward motion of thestarting plate causes the end of the lever projecting throughsaid slot to move rearwardly and the other end of said lever to move forwardly. Said other end is formed with a forwardly projecting finger 106, which, when said-end is moved forwardly, moves rapidly into a notch 107 in theedge of a disk 10S fastened to the shaft 6, and positively arrests said shaft.

To start the machine for multiplying or dividing, as the-case may be, the finger 36 is rotated through anangular distance corresponding to the number with which the mul-l tiplication or division is'to be effected. This motion immediat-ely, by means of the arcuate slot 12, causes the head of the vblock 4:3 to be moved nearer to the drum 23, so that the arm'63 can be rocked backward, the head of the block being no longer between the arm 63 and the locking pin 61. The starting plate 99 is now depressed by means of a linger pieceA 109 secured on the up er end thereof, this depression being permitted by reason of the arm 63 being able to move backward. When the starting plate is de` pressed, its bottom edge engages a. .projecting end of a transverse pin 1-11 secured to a vertical pin 112 slidable in averticallypextending recess in the block 73 closed at the lower 'end by a screw 117, the ends of the pin 111 being slidable in vertical slots 113 in saidwblocln- The upper end'of the vertical pin 112 is beveled at the rear, as showiiat 114, to engage a beveled cut away portion of the pin 72. When said pin 72 Was pressed back By reason of j by the'pressure of the arm 63,. said verticall pin 1 12, pressed upwardly by a coiled spring 116 in said recess, prevented the return ,v movement.- of said horizontal pin. l3ntl when the lstarting plate is depressed, then the vertical pin 112 is also depressed,ifor

the reasons just described, and the horizon` tal pin 7 2 is permitted to move forwardly, which it does under theA action 'of the coiled spring 74. The levers 77 and 81 are thenr free to move under the action of the coiled 4spring 84, and the notched bar S8 is re- 'arresting said shaft, a device rotatable with jsaid shaft, and adapted, in an operative position, to actuate said arresting means, and means for moving said device from an inoperative to anoperative position after a pre-y determined'number of revolutions of said shaft. f

2. The combination of a series of coinputingwheels, a rotary shaft for rotating ,the same, a device movable relatively to said shaft, means for rotating the shaft, means, adapted in the rotation of the drum to move said device relatively to said' shaft to an extent corresponding with the number of rotations ofthe shaft, and means, adapted to be actuated by the device when so moved, for arresting the motion of the shaft.

Sillhe combination of a series of com-- putingwheels, a rotary shaft for rotating the same, a device movable relatively to said shaft, means for rotating the shaft, means, adapted in the rotation 'of the drum to move said device relatively to said shaft to-an extent corresponding with the number of rotations of the shaft, a motor for said shaft, mechanism for disconnecting said motor from said shaft, mechanism for absorbing the momentum of the moving parts, meclr anism for positively arresting the shaft, andl means adapted to be actuated by said device for operating all of said mechanism.

4. The combination ofua series of computing wheels, a rotary shaft for rotating the same, a ring movable relatively to said shaft, means for yieldingly holding the vring in the position to which it has been moved, means for rotating the shaft, stationary device, adapted in the rotation of the .shaft to lmove said ring relatively to the shaft to an extent corresponding with the number of rotations oftheshaft, a block 4slidable in a direction parallel with the axis to move the block in said direction, and

means, adapted to be, engaged by said block,-

for arresting the motion of the shaft.

5. The combination of a series of Computing-wheels, a rotary shaft for rotating the same, a drum carried by said shaft, a ring rotatably carried by said drum and provided with means for rotating it on the drum, .means for yieldinglyholding the ring in the positionto which it has been moved, means for rotating the shaft, a sta.- tionary device, adapted in the rotation of the drum to nieve said ring backward thereon to an extent corresponding with the number of rotations of the drum, a block slidable in the drum in a direction parallel with its axis of rotation, said ring being adapted at the end of its backward` movement, to project the block farther from the drum,l and means, adapted to be engaged by said block, for arrestingthe motion of the shaft.

(3. The combination of a series of computing wheels, a rotary shaft for rotating the same, a drum carried by said shaft, a

ring rotatably carried by said drum and provided with Q means for rotating it on the drum, means for yieldingly holding the ring in the position to which it has been moved,

means for rotating the shaft, a stationary device, adapted in the rotation of the drum to move said ring backward thereon to an extent corresponding with the number of rotations of the drum, a block slidable inv the drum in a direction parallel with its axis or' rotation, said ring being adapted at the end of itsbackward movement,to project the block farther from thedrum, a motor for said shaft, mechanism fordisconneeting said motor from said shaft, mechanism 'for absorbing the momentumof the drum, mechanism for positively arresting the drum, and means adapted to be' actuated by rotations of the drum, a block slidable in the drum in a vdirection parallel with its axis of rotation, said ring being adapted, at the end of i-ts backward movement, to project the block farther from the drum, and means, adapted to be engaged by said block,

`for arresting the motion of the shaft.

8. The combination of a series Ofcomputing wheels, a rotary shaft for rotating the same, a drum carried by said shaft, a ring rotatably carried by said drum and provided with means for rotating it on the drum, means for yieldingly holding the ring in the lposition to which` it has beerimoved, means for rotating the shaft, a stationary device, adapted in the rotation of the. drumy to `move said ring backward thereon to an.

Varcuate slot adapted to engage the shoulder in the block and project the same fartherl from the drum, and means, adapted to be vengaged by said block, for arresting the motion of the shaft.

9. Thecombination of a Series of computinggwheels, a rotary shaftfor rotating the same, a drum vcarried by :said shaft, a ringl rotatablylcarried by saidA drum formed on its outer edge with notches and provided.-

with means for rotating it on the drum, means for fyieldingly holding the ring in. the position to which it has been `moved, meansfor rotating. the shaft, a stationary device, a spur wheel rotatably carried by the drum and the teeth of which mesh with said notches, the outer portions of said spurs bring extended to form fingers, adapted in the rotation'of the drum tobe engaged in turn by said stationary device, whereby, in the,A

rotation of the drum, said ring is moved backward thereonto an extent correspond-1 mg with the number ofrotations of the drum, a block slidable inthe drum and` through an arcuate slot in. the. ring in a direction parallel with its axis of rotation, said block having a shoulder, and the ring having a shoulderv at the end of the arcuate slot adapted to engage the shoulder in the blockand project the same farther from the drum, and means, adaptedto be engaged by said block, for arresting the'motion lof the shaft.

In testimony whereof I have hereunto set my hand inthe presence of two subscribing v witnesses.

`RODNEY H. MARCHANT,

Witnesses:

F. M. VRIGHT, D.y B. RICHARDS.

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