US699807A - Calculating-machine. - Google Patents

Description

No. 699,807. Pa tented May I3, i902. L. Y. MOCONNELL 8|. C. L. RAYMOND CALCULATING MACHINE.

(Application filed June 27. 1901.)

THE uonms PETERS co. PHDTD-LITNO.. WASHINGTON. 0. cv

UNITED STATES PATENT OFFICE.

LOUIS Y. MCCONNELL AND CHARLES RAYMOND, OF ROCHESTER, NEW YORK.

CALCULATlNG'-MACHINE.

SPECIFIGATION forming part of Letters Patent No. 699,807, dated May 13, 1902.

Application filed June 2'7, 1901.

To all whom, it may concern:

Be it known that we, LOUIS Y. McConNELL and CHARLES L. RAYMOND, citizens ofthe United States, and residents of Rochester, in

the county of Monroe and State of New York, have invented certain new and useful Improvements in Galculating-Machines,of which the following is a specification.

This invention relates to calculating-machines. Its object is to simplify the construction of such machines and to produce an efficient, simple, and cheap mechanism.

It consists in the mechanism hereinafter described and claim ed.

In the drawings, Figure 1 is a perspective view of a machine constructed according to this invention. Fig. 2 is a bottom plan View thereof, and Figs. 3 and dare views of details.

The machine has an outer casing A, having a curved front a, aseriesof slots at, arranged,

preferably, in parallel vertical planes, and a series of perforations a for reading the totals added by the machine, and adjacent to eachof the slots a there is a series of digits, as shown. Withinthe case are a series of counting-wheels B, B B B and 13 each of which has upon it a series of digits and a zero. In the present instance there are four such se- 'ries on each wheel; but the numbers or series of digits on each wheel may be any selected number, according to the size of the wheel. These counting wheels are conveniently strung on the same shaft B Around the whole periphery of each counting-wheel and adjacent to that portion which bears the series of digits is a series of teeth or ribs Z), one for each digit upon the rim of the wheel. (See'Fig. 3.) These ribs are used as fingerpieces or projections for moving the respectivewheels, and the bottom of the slot a constitutes a stop-point, beyond which the finger cannot move in operating the wheel. The wheel B relates to units, the wheel B to tens,

the wheel 13 to hundreds, the wheel 13 to thousands, and the wheel 13 to tens of thonsands.

In order that the ribs 1) should be held in proper relation to the numerals of the case, a ratchet O is provided for each of the wheels semi no. 66,233. (No model.)

tween adjacent ribs 6, as shown in Fig. 3. The'ratchet or dog 0 is held up to its position by a suitable spring 0, Fig. 2, which presses the ratchet or dog and has a suitable bearing"as, for instance, the case. The series of dogs 0 are strung upon a shaft 0.

Carrying mechanism is provided in this device consisting of a series of pinions b, b b and b meshing with the ribs 1) upon the periphery of the wheels B to B, respectively, as shown in Fig. 2. WVhenever any one of these wheels is revolved, the pinion revolves with it. Each pinion is set upon a sleeve 1), (see Fig. 4,) and the whole series of pinions, with their sleeves, are strung upon a shaft B passing across the machine and having its ends supported in the case.v The end of each sleeve b is notched or cut out, as shown in Fig. 4, thus forming two faces 11 b, and in the notch and between the two faces is alug Z2 on a block Z2 also set on the shaft B", which block bears a single spur-tooth I9 The spur Z7 is adapted to engage the ribs 1) of the wheel of next higher denomination to that with which the pinion onitsrelated sleeve b meshes, and the 'single's'pur b is driven by the sleeve 19. The teeth on the pinions b to b are of such number with relation to the number of teeth or ribs 1) upon the wheel with whichit meshes that when one series of digits-up0n the wheel B, for instancehas passed the reading-point the pinion Z) will be caused to make one revolution. Consequently in the present instance as there are four series of numerals upon each wheel there are forty teeth or ribs upon the pinion 1). Hence when the reading on the units-wheel B amounts to ten the tens-wheel B will be moved one tooth-space and a digit will have been added to the reading on the tens-wheel, and so on throughthe series. \Vhen, therefore, the pinion 5 makes one revolution, the face I) of the sleeveb presses against the lug Z9 of the block b and will cause the single tooth to engage a rib b on the wheel B and will advance said' 9 wheel one tooth-space. The wheel B" will not move again until the pinion b has made one complete revolution and the tooth b has again reached its engaging position. It is and adapted to engage in the depressions benecessary, however, to be able to rotate the countingwheel of a higher denomination without operating the carrying mechanism or counting-wheel of any lower denomination, and for this purpose there is a loose movement between the block Z2 and the pinion b of the next lower denomination. The distance between the faces Z) and Z1 is such as to permit the movement of the block h by the wheel with which it is engaged, so as to turn said block until the tooth b disengages from the teeth or ribs 1), and thus to permit the wheel with which the tooth 1) en gages to move freely and Without acting upon the spur-wheel Z); but when the sleeve 11 is again turned to the desired extent for a carrying operation the face Z) again engages the lug I) and brings the tooth h into mesh with the wheel 15*, causing the last mentioned wheel to advance one tooth-space, as before.

It is obvious that the ribs 17 constitute gearteeth for engagement with the carrying mechanism of the respective counting-wheels ol' the device.

Beginning with all the wheels set at zero, let us suppose that we wish to commence with the number 6. The finger is placed on the rib Z) of the wheel Beorresponding to the figure 6 of the units-column, and the wheel is then turned downward by the pressure of the finger until the finger stops against the lower edge of the wheel A It will then be found that the figure 6 will appear in the sight-opening a of the units-column. If twenty is to be added, the finger is placed on the rib b of the wheel 13 opposite the numeral 2 on the casing and is pressed downward until the finger stops on the bottom of the slot. If eighty-eight thousand is to be added to this amount, the finger is placed on the ribs Z) of the wheels 13" and B opposite to the numerals 8 on the casing and each wheel is turned by the finger in like manner. The reading will now be 88026 at the sightopenings a If new four is to be added on the units-wheel, the finger is placed on the rib opposite the numeral -l and the wheel is moved downward until the finger stops 011 the bottom of the slot. This adds four tooth-spaces to the six as the machine is set, making the total tooth-spaces on the wheel that have been moved ten in number. If this motion of the wheel B has occurred, it will have caused one complete revolution of its pinion 1), which will have moved the block 15 and will have caused the tooth Z) to engage the tens-wheel B and to have moved it one tooth-space by the movement of the tooth and block. This will bring the figure 3 on the tens-wheel opposite the sight-opening. The same operation occurs when the sum of digits on the periphery of any wheel at the sightopening equals ten. Let us assume, however, that any wheel stands at Zero with the tooth Z) of its block engaged in a tooth-space on the periphery of the wheel. If this tooth were engaged with the pinion, a fresh movement of the wheel with which the tooth Z) is engaged would cause a motion of the pinion; but in this invention a movement of the counting-wheel in the proper direction turns the block upon the shaft B and on account of the space between the faces I) and I) permits a backward movement of said block until the tooth disengages from the countingwheel and the counting-wheel may continue its rotation disengaged from the tooth on the block; but just as soon as the carrying-pinion is rotated by its wheel the face 12 being always in fixed relation to the counting mech anism will engage the lug U and carry the block and its tooth into the proper position for turning the wheel to the next higher denomination to the extent necessary for a carrying operation.

What we claim is 1. In a ealculating-machine, a series of counting-wheels having teeth thereon, a series of pinions one engaging the teeth of each counting-wheel, said pinions having separated engaging faces I), b, a block for each pinion rotatable thereby and having a tooth b adapted to engage intermittently teeth of the wheel of the denomination next higher than that with which the pinion engages, a lug upon said block having a loose movement be tween said faces b and Z2 and adapted on movement of the pinion in one direction to transmit a movement of one tooth-space to a wheel from the wheel of next lower denomination, said block being thereby capable of movement by the wheel of higher denomination to disengage said tooth Z) therefrom without moving the pinion, substantially as described.

2. In a calculating-1nachine, a series of counting-wheels having teeth thereon, a series of pinions one engaging the teeth of each counting-wheel, a block for each pinion and rotatable thereby and having a tooth adapted to engage intermittently the teeth of the wheel of the denomination next higher than that with which the pinion engages, means for driving said block by said pinion and having a loose movement as between the pinion and block whereby said block is so moved by the counting-wheel of the higher denomination as to disengage the tooth therefrom without moving the pinion, substantially as described.

In a calculatingmachine, a series of counting-wheels having teeth thereon, a series of pinions one engaging the teeth of each counting-wheel, said pinions having extended hubs and sockets in said hubs forming engaging faces 1) b, a block for each pinion and revoluble thereby and having a tooth Z) adapted to engage the teeth of the wheel of the denomination next higher than that with which the pinion engages, a lug upon said block having a loose movement between said faces I), I), said pinions and blocks being strung on the same axle whereby on operat- IIO ing the wheel of lower denomination to a sesaid pinion when moved, substantially as deleeted extent, the movement is transmitted scribed.

through the block to the wheel of next higher LOUIS Y. MOOONNELL.

denomination, and on operating said Wheel CHARLES L. RAYMOND. 5 of next higher denomination the block turns WVitnesses:

and disengages said teeth from said wheel by F. BISSELL,

the movement of the lug in said socket and NELSON E. SPENCER.

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