US1376960A - Change-making machine - Google Patents

Description

M. H. MANDELBAUM AND B. R.-WEBSTER.

. CHANGE MAKING MACHINE APPLICATION FILED MAR 4,1920.

.7 m Q 4 @J M. H. MANDELBAUM AND B, R. WEBSTER.

CHANGE MAKING MA'CHINE. APPucAn o HLEl) MAR 4,1920.

Patented May 3, 1921.

2 SHEETS-SHEET 2.

w v I jm/azvro" both the 25 and 50 cent changers.

omrso STATES PATENT OFFICE.

MAURICE n. MANDELBAUM, OF CHICAGO, AND BEsTER R. WEBSTER, 0F ELGIN, ILLI- NoIs, ASSIGNOBS, BY' DIRECT AND MESNE ASSIGNMENTS, To BRANDT CASHIER COMPANY, A ooRPoRATIoN OF ILLINOIS.

CHANGE-MAKING MACHINE.

7 Specification of Letters Patent.

Patented May 3, 192 1.

Application filed March 4, 1920. Serial No. 363,168.

of the United States, and residents of Chicago, in the county of Cook and State of Illinois, and Elgin, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Change- Making Machines, of which the following is a specification.

Our invention relates to change making machines and particularly to a novel devlce having many improvements and advantages over those heretofore produced.

()ne of the objects of our invention is to provide simplified and improved mechanism for accomplishing certain results necessary or desirable in connection with a device of this kind. For instance, we provide a dlstinctly novel and useful change deliverlng chute and trap door, the operation of which more nearly conforms to the motion of the hand of the person receiving the change. In our device the movement of the door is in the arc of a circle, the center of which 1s above the outlet. Inasmuch as the person receiving the change usually stands above the machine, the motion of the hand is downward and our construction accommodates such movement.

Another advantage is in the form, construction and arrangement of the changing mechanism; that is, the means employed for changing the function of the machlne to pay on the basis of 25 or 50 cents instead of on the basis of a dollar. In our construction it is impossible to actuate both the changing devices at the same time; thaf fis,

1s avoids the possibility of error due to careless operation.

A further advantage is in the construction of the partitions which serve to divide the coin chutes. It has been found to be desirable to provide means whereby to avoid tilting or wabbling of a coin as it is being discharged from the chute.- In our con structionthe 1 result is accomplished by merely'pressing a fin or body of metal laterally from a chute of relatively thin gage material. This simplifies manufacturing and materially reduces the cost.

A further advantage is in the construction and mounting of the so-called equalizer bar for the key operated rock-ban In our'oonstruction we mount this equalizer at the side of the machine and make it of such length as to have a bearing substantially midway of the length of the bars. Thus a longthrow is secured and more efficient equaliz-' ing action efiected. In the constructions with which we are acquainted the equalizer has been mounted at a point intermediate the sides and a bearing on the center of-the rock bars has been impracticable even by making the equalizer of relatively short length. This results in more orless of a twisting action of the bars with consequent wear. 7

The. invention will be more readily understood by reference to the accompanying drawlngs in which amachine of'the character described is illustrated. Inasmuch as such machines are well'known, only a general description of the parts-will be given.

Figure 1 is a sectional view through a machlne constructed in accordance with our inventlon; 1

Fig. 2 is a plan sectional view;

Fig. 3 is a detail on the "line 33 of Fig. 1; Y I

Fig. 4; is a sectional form of the partition which we prefer to employ, and,

Fig. 5 is a face view'thereof. 7

A. main frame 10 is provided and'the operating parts are suitably secured in brackets mounted on saidframe. The-keys 11 are mounted for reciprocation between upper and lower key plates 12, 13, the latter detail showing the supporting the retracting springs 14. The

- filed Jan. 19, 1920 to hold the U-shaped equalizer in raised position against the rock-bars. The movement of the rock-bars serves to effect longitudinal reciprocation of the pay-bars 26, to the outer ends of which the pay-fingers 27 10.

are pivoted. The free ends of the members 26 are provided with anti-friction rOlleI's 28, which contact with the fioer 29 of the machine and efiect a horizontal movement of the member at that point. The pay-fingers 27 are each provided with a lateral eXten- 'sion 30, to which a coiled spring 31 is secured, the tendency of the spring being to raise the finger into an elevated positlon.

A locking mechanism for detecting a shortage of coins within the chute may consist of the bell crank pivoted at .82, and consisting of a detecting arm 33 and a look ing arm 34, the latter being adapted when in lowered position, to engage with a notch 35 in the extension 30 of the pay-finger. This locking mechanism is covered in a copending application, Serial No. 352,285,

The changing mechanism of our invention comprises a pair of U-shaped members pivoted on a shaft 36, (Fig. 2) mounted in brackets 37, the forward end 38 of one of the U-shaped members overlying the cent pay-finger while the forward end 39 of the other U-shaped member overlies the 25 cent pay-finger. Themeans for actuating these U-bars is best shown in Figs. 1 and 3. This mechanism comprises a pair of push-keys 40, 41, held in raised. position on suitable springs and having stems pro-' vided with notches 42, '48- respectively.

Mounted with its ends in the notches 42, 43,

is a rocker 44, fixedly pivoted at 45. The size of the ends of the rocker is such that there is considerable freedom of movement of the key stems or shanks relative to the .rocker but not sutlicient to permit of the locking of one key while the other is in depressed position. Inasmuch as the operating connections of the two keys with the U-bars is identical a description of but one thereof will be given. At the lower end of the key 41 is a notch 46, which engages a transverse bar 47, which spans the side members of the; U-bar. This cross member 47 is angularly arranged relative to the position of the U-bar and in that position there is a line bearing between it and the stem 41. A pawl 48, pivoted at 49 is arranged adjacent to each of the U-ba rs, the projec- U-bar and depressing the cross-member 47,

the latter will engage beneath the projection 50 and retain the bar in lowered position. When in this position the U-bar depresses the respective pay-finger, and upon actuation of any key which would otherwise effect an outward movement of the pay- Iinger, the latter will. be in such position as not to engage a coin. However, as the member 26, which carries the pay-finger 27, is advanced, a pin 51 thereon contacts with the pawl 48 and moves it from engagement with the cross-member 47, whereupon the parts return to their normal position. However, at that time thepay-finger has passed beneath a coin and the coin will not be ejected. One of the keys 40, 41, effects a change to a 50 cent basis and the other to a 25 cent basis of change making instead of the normal dollar basis and it will be seen that this effect is secured only at each actuation, that is, it cannot be made to permanently pay on a 50 or 25 cent basis.

The partition construction for the coin tray is best shown in Figs. 4 and 5, in which it will be seen that two sheet metal members 52, 53, are provided these being suitably secured to a back plate 54. At the outer edge beginning at a point below the upper end thereof, the sheet metal is bent laterally and at the lower end inwardly, as indicated at 55. In addition the metal is cut transversely, as indicated at'56 in Fig. 1, and the metal is bulged or laterally deflected to provide a fin or projection 57, the utility of which is best illustrated in Fig. 4. As shown by that figure, this projecting section of metal overlies a coin as it is being discharged and guides the coin until it is well freed of the holder. This avoidsany wabbling or tilting ofthe coin and assures that it will not disarrange the remainder of the coins in the chute in eventthere are but few thereof still remaining.

The receptacle into which the coins are received and th slide for closing the lower end thereof are'best shown in Fig. 1. The hopper 58 may be of rectangular construction and be provided with an inclined floor 59, which converges to an outlet at the central portion thereof. This outlet is closed by an arcuate door 60, mounted upon an arm 61, pivoted at 62, at a point as high up as possible on the hopper. It will be noted that p the arc of curvature of the door 60 is formed on a radius the center'of which is the pivot 62. A downwardly projecting web 63 from the doorserves as a means for'engagement by the fingers of the person receiving the change, the arrangement being such that as the hand is thrust forward the fingers engage the weband oscillate the trap door on its pivot. venient and naturalmeans for operatingthis element of the device. As shown in Fig.2, a

This serves as av verycon- -suitable spring 64 is hinged at the pivot of the door and serves to maintain the same in closed position.

It is obvious that modifications may be made in the construction shown and such modifications as are within the scope of our claims we consider within the spirit of our invention. Y

We claim:

1. In a device of the class described, the combination of a plurality of rock-bars, paying mechanism actuated thereby, a U-shaped equalizer engaging the bars at a point midway of their length, and means for pivoting said equalizer at the side of the machine, substantially as described.

2. In a device of the class described, the combination of a plurality of rock-bars, an equalizer of generally U-shape pivoted at the side of the device and projecting inwardly, the transverse member of the equalizer engaging beneath the rock-bars at a point substantially exactly midway of their length, and spring means for retaining the equalizer in position against the under side of said rock-bars, substantially as described.

8. In a device of the class described, the combination of pay-fingers for coins of different denominations, bars 'for engaging each of two pay-fingers of coins of the two highest denominations, a key for selectively actuating said bars to render said fingers inoperative to engage a coin, and means to prevent the simultaneous actuation of both of said bars, substantially as described.

, 4:. In a device of the class described, the combination of pay-fingers for coins of dif- :Eerent denominations, bars for engaging each of two pay-fingers of coins of the two highest denominations, a key for selectively actuating said bars to render said fingers inoperative to engage a coin, and means cooperating with said keys to prevent simultaneous actuation thereof, substantially as described.

5. In a device of the class described, the combination of pay-fingers for coins of different denominations, bars for engaging each of two pay-fingers of coins of the two highest denominations, a key for selectively actuating said bars to render said fingers inoperative to engage a coin, and a lever fulcrumed between and engaging said keys in such manner as to prevent the simultaneous depression of both keys, substantially as described. I

6. In a coin-paying machine normally adapted to make change on a dollar basis, the combination of pay-bars, pay-fingers secured to the end thereof, U-bars for engagin the fifty-cent and twenty-five cent payfingers to render the same inoperative, a key adapted to engage each of said U-bars, a pawl for retaining the bars in finger-engaging position, means preventing simultaneous actuation of said keys, and means operable by the advance of a pay-bar the finger. of which is held in inoperative position for releasing said pawl and assuring normal operation on the next stroke of the pay-finger, substantially as described.

7 In a coin tray, the combination of partition walls composed of sheet metal having an inturned and inbent marginal edge which terminates above the lower end of the partition, the metal adjacent the terminal point of the thus formed flange being deflected laterally above and contiguous to the plane of travel of a discharged coin, substantially as described.

8. In a coin tray, the combination of partition walls composed of sheet metal having a marginal flange which terminates above the lower end of the partition to provide a discharge notch, a triangular portion of the metal at the junction of the lower portion of the flange with the partition wall being defiected to form an overhanging ledge to engage a coin as it is being discharged, substantially as described.

9. In a coin-paying device, the combination of a receiving hopper having a dis charge outlet the bounding edges of which are of arcuate form, an arcuate closure for the outlet, and an upwardly extending arm connected to the rear of the closure, said arm being pivoted to the hopper at a point near the upper end thereof, substantially as described.

Signed at Chicago, Illinois, this 13th day of February, 1920.

MAURICE H. 'MANDELBAUM. BESTER R. WEBSTER.

Witness:

T. BUTLER.

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