US400247A - p pearson - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

' ,A. PEARSON.

CASH INDIGATOR.

No. 400,247. Patented Mar. 26, 1889.

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3 SheetsSheet 3.

(No Model.)

'A. PEARSON.

CASH INDICATOR.

No. 400,247. Patented Mar. 26, 1889.-

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UNITED STATES PATENT OFFICE.

AVEN PEARSON, OF \VASHINGTON, DISTRICT OF COLUMBIA.

CASH-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 400,247, dated March 26, 1889.

Application filed April 28, 1888. Serial No. 272,117. (No model.)

To all whom it may concern:

Be it known that I, AvEN PEAEsoN, a citizen of the United States of America, residing at *ashington, in the District of Columbia, have invented certain new and useful Improvements in Oash-Registers, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to improvements in cash-registers; and it consists in certain de tails of construction and combinations of parts, which will first be described in connection with the accompanying drawings, and then clearly pointed out in the claims.

Figure 1 of the drawings is a perspective view of the cash-register detached from the wooden frame-work, a portion being broken away to show the mechanism for regulating the tension of the retracting-springs. Fig. 2 is a bottom view of the same. Fig. 3 is a vertical section taken on the line 5c 00, Fig. 2.

Referring to the drawings, A represents a quadrantal metallic casing having two circumferential slots, at a, and two transverse openings, a a the top part of the casing, however, being turned downward, as at a, Fig. 3. A partition-plate, A, divides the easing A into two parts.

B represents a transverse shaft removably secured in the sides of the casing by means of screws 11 passing into its ends. The shaft itself is not revoluble, but it is encircled by two loose sleeves, C C, which are free to revolve thereon.

D D represent two frame-pieces, of the same general shape as the casing,which frames are cut out, as at d, to lighten them. They are rigidly secured to the sleeves O O, and to the outer circumference of each one is socured a curved plate, E E, which fits neatly under and coincides with the shape of the top of easing A. To each of these plates are secured nine o iierating-handles, F F, which extend up through the slots a 0,, the handles F being preferably numbered on top by fives from 5 to 45, indicating cents, while handles F are preferably numbered by fifties from :1 (or fifty) to 4. (or four fifty,) indicating dollars. On each of the plates E E, just above each handle, but in a radial line coinciding with the openings a? 0, in casing A, is a series of large figures corresponding with the num= hers on the handles. A brace, G, secured to the sides of easing A and to an extension= piece, a, secured to partition-plate A, serves to prevent the walls of slots ct a being so crowded together as to cramp the handles.

Two spring-pins, 1, beveled upon the upper side, engage with holes formed near the inner edges of plates E E, to hold them down in the position to which they may be drawn. These pins are mounted on a plate, 2, which normally overlaps another plate, 3, on which it slides, as seen in Fig. 2, the plate 3 being screwed to brace G. A lever, at, pivoted at its upper end to the partition-plate, its lower end resting against a stop in the money-drawer, (not shown,) engages with the forward edge of plate 2, and serves to withdraw the pins in looking position (or both pins simultaneously when they are both in that position) when the money-drawer is pulled out to deposit the money.

H H represent retracting-springs for retu rning the curved plates E E to their normal positions when released by the spring-pins. One end of each spring is secured to the sleeve O or O on shaft B, and around which sleeve it is coiled, its other end being secured to a small drum, 5, rigidly mounted on an arbor, 6, journaled in the side of the casing A. On the outer end of this arbor, outside the casing, is rigidly secured a toothed wheel, '7, with which meshes a worm-screw, 8, which has its bearing in two studs, 9, on the side of the casing, as seen in Fig. 1. By this mechanism I am enabled to regulate the tension of the springs to a nicety, which is a matter ofconsiderable importance. The tension of springs H should be sufficient to retract the framepieces and curved plates quickly; but when the springs are under that tension I have found that it is necessary to provide some means for graduallyarresting the momentum of the frame-pieces, so as to prevent undue concussion and noise. To this end I employ an air-cushion, I, for each frame-piece, which cushion consists of a small cylinder, t, secured to the downturned flange a of the top part of easing A, the open end of the cylinder registering with a hole, a, in said flange (t the other end of the cylinder being closed.

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Inside of the cylinder 1' there is another shorter cylinder, 2', having an open and a closed end, the reverse of those of cylinder 1', the cylinder 2" fitting so neatly within the other as to permit a very slow escape of air, and inside of the inner cylinder, for the purpose of carrying it up flush with the upper end of the outer cylinder when pressure is off, is a spiral spring, 2 The plunger 23, for depressing the inner cylinder, is secured to a downwardly-extendin g flange, e, on the curved plate.

K K represent two registering drums loosely mounted on shaft B, the drum K being marked with four sets of numbers, running, preferably, by fives from 0 to 45, and provided with forty ratchet-teeth corresponding with these figures. This drum is also provided with four radial pins, is, set at equal distances apart. Drum K is preferably numbered by halves or fifties (representing dollars) from 0 to 19%, it being also provided with forty ratchet-teeth corresponding with these numbers and one radial pin, 7r.

L represents another registering-drum considerably smaller than the others and located immediately in front of drum K, it being loosely mounted on an arbor, Z, secured in the partition-plate. This drum is preferably numbered by twenties from 0 to 380, and has twenty ratchet-teeth corresponding with these numbers.

M represents a combined adjustable pawland-indicator device, which serves to hold all the registering-drums against backward revolution, and also to indicate the amounts registered. This device consists of a bar, m, secured to the front edge of the partition-plate, two rearwardly-extending pawls, m, slotted at one end, and each provided with an indicating-finger, m at the other end for operation in connection with drums K and K, and a shorter forwardly-extending pawl, m constructed precisely like pawls m, for operation in connection with drum L. Each of these pawls is adjustably secured to bar or by means of a set-screw, m passing through the slots and taking into said bar, as seen in Fig. 2. By combining the indicator with the pawl I avoid the necessity for separate indicators, and by making the pawls adjustable I am enabled to adjust any one of them with relation to the others as it may become worn.

Drums K and K are operated by means of pawls N, the free ends of which are mortised to fit over a single tooth, the other end being secured to a short stud, 01, secured in the side of each frame-piece D D, as seen in Fig. 3, so that as the frame-piece and its curved plate are pulled down to register a given amount the drum will be turned a number of teeth corresponding with that amount. Drum L is turned by the pin 011 drum K engaging with one of its teeth in an obvious manner.

0 represents a toothed wheel rigidly secured to the side of drum K. This wheel is about half the diameter of the drum, but has the same number of teeth as the drum.

P represents a lever, pivoted at p to the partition-plate above drum K, and provided at its free end with a hinged pawl, p, which is held in engagement with the teeth on wheel 0 by a spring, 23 secured to the lever. The lever is provided with a laterally-extending arm, P, which passes through a curved slot, 8, in the partition-plate and lies in the path of the pins is on drum K, as best seen in Fig. 2. A spiral spring, 15, secured to the lever and to the partition-plate, serves to return the lever to its normal position, and an adjusting-screw, u, mounted in a stud, e, secured to the side of the partition-plate, bears against lever P and serves as a means for taking up lost motion due to wear.

It will be apparent that the frame-pieces and their curved plates and handles, and also the registering-wheels, may be duplicated in a single casing if desired to register additional amounts; but the mechanism above described will be found to meet the ordinary requirements of trade.

The operation of this register is as follows: A sale amounting to, say, ten cents having been made, the money-drawer is opened to deposit the money, after which frame-piece D, with its curved plate E, is pulled down by taking hold of the second handle until the number 10 on plate E appears in opening a in casing A. This movement of the frame to which pawl N is attached will cause that pawl to draw drum K around through the space of two of its teeth, the combined pawl and indicator preventing backward revolution of the drum and indicating on the drum the amount of the sale. hen the plate is thus drawn down, the spring-pin 1 will enter the second of the series of holes near the edge of said plate and hold it in locked position, exposing the number 10 until the drawer is again opened,when lever A will operate to withdraw the pin an d allow spring H to throw the frame piece and plate back to their normal positions, the momentum of these parts being gradually arrested by the air cushion I, as above described. It will be understood that as the spring-pin is beveled on its upper side it will not engage with any of the intervening holes in the curved plate until said plate is brought to rest. Again, suppose the indicating-fingers point to 45 on drum K and to 12 on drum K, as in Fig. 2, wherein it will be seen that one of the pins 7r on drum K is now resting against the rear side of arm P of lever P. Now, if frame-piece D is pulled down by taking hold of the first handle, drum K will be turned one number, when the indicator will stand at 0; but as the drum is turned its pin it will raise arm P of lever P and cause pawl 19 to turn wheelO one tooth, which will carry drum K around one number, and its indicator will then point to 12:}.

While wheel 0 and its connected mechanism serve effectually to transfer a single record of the .sale.

from drum K to drum K, they are absolutely essential, so far as any other mechanism with which I am acquainted is concerned, to pre vent fraud or error on the part of the operator when it becomes necessary to operate both plates E and E to indicate the amount To illustrate, we will suppose that the indicator-fingers point to 45 and 12, as above stated, and it is wished to register fifty-five cents. To do this plate E may be first drawn down by taking hold of the first handle, as above explained, and then plate E may be drawn down in like manner, (or both may be operated simultaneously) when will show in opening (L3 and 5 in opening a In first drawing down plate E of course drum K will be moved one tooth, when its indicator will point to 12%, and then when plate E is operated to move drum K one tooth the pin 7s will raise arm P and cause pawl p and wheel 0 to turn drum K another tooth, so that its indicator will then point to 13. Should both plates be operated at the same time the same result would followthat is to say, drum K would be moved two teethfor the reason that by wheel 0 it is made to travel just twice as fast as drum K, and therefore an accurate register will be made, no matter in what order the drumsare operated. This would not be the case, however, if the drums were made to travel at the same speed when registering these double numbers, for the reason that if both drums were operated simultaneously they would then each be moved but one tooth, and therefore a registration of fifty cents on drum K would then be dropped.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with the een ts-register ing drum provided with projecting pins and mechanism for turning it, of the dollars-drum, a toothed wheel secured to the side of said drum, and a lever provided with a hinged pawl to turn the said wheel, the lever being operated by the pins on the cents-drum, whereby the dollars-drum is caused to move faster than the cents-drum, for the purpose stated.

2. The combination, with the cents-drum provided with radial pins and mechanism for turning it, of the dollars-drum, a toothed wheel secured to the side of said drum, and a lever provided with a hinged pawl to turn the said wheel, and having an arm extending laterally into the path of the radial pins on the cents -drum, whereby the dollars drum is caused to move faster than the cents-drum, for the purpose stated.

3. The combination, with the cents-drum provided with projecting pins and mechanism for moving it, of the dollars-drum, a toothed wheel secured to the side of said drum, and an adjustable lever provided with a hinged pawl to turn the said wheel, the lever being operated by the pins on the cents-drum, substantially as described, and for the purpose stated.

L. The combination, with a registeringdrum, of an adjustable pawl having an integral laterally-extending indicating finger, substantially as described, and for the purposes stated.

5. The combination, with the main shaft, a loose sleeve encircling said shaft, and a framepiece rigidly secured on said sleeve and carrying a curved plate, of a retracting-spring, and a drum to which one end of said spring is attached, an arbor on which the drum is mounted, a toothed wheel on one end of the arher, and a worm-screw in engagement with said wheel for regulating the tension of said spring, for the purpose set forth.

6. In a cash-register of the class described, the combination, with the casing, the shaft, a sleeve encircling said shaft, a frame-piece carrying a curved plate, and a spring for retracting said framepiece, of an air-cushion attached to the casing and a plunger attached to the curved plate, substantially as described, and for the purpose set forth.

In testimony whereof I affix my signature in presence of two witnesses.

AVEN PEARSON.

\Vitnesses:

WM. HUNTER MYERS, G. W. BALLOCH.

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