US1457699A - Coin-testing mechanism for coin-controlled machines - Google Patents

Description

June 5, 1923.

A. D. GROVER COIN TESTING MECHANISM FOR COIN CONTROLLED MACHINES 2 Sheets-Shee/t'- l Original Filed Aug. 24, l9l7- June 5, 1923.

A. D. GROVER TESTING MECHANISM FOR COIN CONTROLLED MACHINES COIN Original Filed Aug. 24, l9l7 2 Sheets-Sheet 2 /NVENT DR filber 17. Grover;

dizzy', l

will" Patented June 5, 1923.

ALBERT D. GROVER, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TQ

AUTOSALES CORPORATION, A CORPORATION OF NEW YORK.

COIN-TESTING MECHANISM FOR COIN-CONTROLLED MACHINES.

Application tiled August 24, 1917, Serial No. 187,935. Renewed April 30, 1919. Serial No. 293,809.

T o all whom 'it may coflwem:

Be it known that I, ALBERT D.' GRovER, a citizen of the United States, and resident of New York, county and State of New York,

6 have invented certain new and useful Im provements in Coin-Testing Mechanisms for Coin-Controlled Machines, of which the following is a specification.

The object of my invention 1s to provide a coin-testing device for coin-controlled machines to prevent operation of the machine by means of washers, by means of coins or checks that are too thin, and by coins or checks thatv are of smaller than prescribed diameter. The mechanism of my invention is exceedingly simple and compact, and 1s especially adapted to be applied to vending machines of small size, such as are used in theatres or like places.

The various objects and advantages of my invention will become apparent from a detailed description of the accompanying drawings, which illustrate a preferred embodiment of my invention.

In these drawings- Fig. 1 shows a rear view of a supporting plate adapted to be attached to a vending machine and provided with the coin-testing mechanism of my invention, the parts being shown in position when a good coin is passin through the machine.

ign 2 is a front view of the mechanism shown in Fig. 1, a portion of the front cover plate being broken away to show the parts within.

Fig. 3 is a View similar to Fig. 1, showing how a washer is locked against passage through the machine.

Fig. 4 is a front view of Fig. 3, a portion of the cover plate being broken away ,for the sake of clearness.

Fig. 5 shows a fragmentary detailed view in section on an enlarged scale, the section being taken approximately on line 5 5 of Fig. 3, looking in the direction of the arrows.

Fig. 6 is an enlarged view in cross-section, taken approximately on line 6 6 of Fig. 2, looking downwardly.

Fig. 7 is an enlarged view on line 7 7 of Fig. 4, looking downwardly.

Fig. 8 is a view similar to Fig. 3, on an enlarged scale, showing how a too-thin coin or check is locked against passage through the machine.

Fig. 9 is a to plan view in cross-section on line 9 9 of ig. 8.

Fig. 10 is a fragmentary view in elevation, showlng how a too-small coin or disk is locked against passage through the machine. Fig. 11 is a, longitudinal cross-section on hne 11 11 of Fig. 10, looking in the direction of the arrows; and

Fig. 12 is a perspective view of the cointesting and washer-catching pawl of my invention.

The various parts of the mechanism of my invention are mounted on a suitable support which is shown in the drawings in the form of a plate or casting A adapted to be attached to any suitable form of coin-controlled machine. Broadly speaking, the support A may be of any desired form of construction. This support or casing is provided with a coin-passage P through which the deposited coins are conveyed into operative position within the machine. In the coin-passage P operates a coin-carrier 1 which is shown in the form of a disk having one or more coin-receiving recesses 2. The coin-carrier 1 is operatively connected with a suitable member on the outside of the machine, such as a hand knob 3 o-r the like. The knob 3 is provided with a hub 4 which passes through the support A and to which the coin-carrier 1 is secured by a screw 5 or otherwise.

ln the recess 6 0f the support A is mounted a slide 7. Suitable spring means, such as a coil spring 8, normally holds the slide 7 in uppermost position, as shown in Fig. 1. The coil spring 8 may conveniently be housed in the opening 9 of the slide 7. The upper end of the spring 8 bears against the top of the opening 9, while the lower end is supported on the fixed stud 10 carried by the support A. The slide 7 is provided with a lateral coin-engaging extension 11 which projects into the coin-passage P The eX- tension 1l is formed with a downwardly beveled edge 12, over which the' coin rides to depress the slide out of the way and allow the coin to pass through the machine. Preferably, also provide the extension 11 with an edge 13 which locks a coin against reverse movement after it has been passed into the -machine a suiiicient distance to engage the edge 13. So far as the coin-testing mechanism of my invention is concerned, the locking edge 13 is not necessary.

On the opposite side of the supporting plate A is pivoted an arm 14 on a pin or stud 15. At its lower end, the arm 14 carries a stop 16 which extends through an opening 17 of the support A into the path of movementl of the locking shoulder 18 on the slide 7.

Adjacent to the stop arm 14, is mounted a coin-testing pawl 19. The lower end of this pawl is supported in a suitable socket'or bearing 20 carried by the support A. In the drawings, I have shown the support A provided with a recess or fiat chamber B in which the arm 14 and pawl 19-are accommodated. The chamber B is closed by a cover plate 21. The form of the pawl 19 is best shown in Fig. 12, from which it will be seen that at its upper end, the pawl isprovided with a lateral extension 22, having a beveled edge 23, and with a projection 24 extending in the plane of the body of the pawl. The projection 24 is provided with an abrupt upper edge 25 and with a beveled lower edge 26. The arm 14 is provided with a lateral extension 27 arranged to be engaged by the beveled edge 23 of the pawl 19 when the latter is forced toward the arm 14 under the action of suitable spring means, such as the spring 28. This spring is shown mounted on a stud 29, and is at its free end permanently in engagement with the pawl 19, as clearly seen in Figs. 2 and 4.

The projection 24 of the pawl 19 normally extends into the coin-passage P under the action of the spring 28. This is clearly shown in Figs. 5 and 11. In order to allow the coin-carrier 1 to rotate freely when there is no coin present, or when carrying a good coin, I provide the coin-carrier with beveled edges 30, as indicated in dotted lines, for repressing the projection 24 out of the coinpassage, whereby the forward rotation of the coin-carrier is not interfered with, Whether the carrier be empty or carries a good coin.

The beveled edge of the projection 24 permits the coin-carrier to be rotated reversely when empty. So that, when the coin-carrier is empty, it is free to be rotated in either direction. This is not essential to my invention and I describe it here merely as a preferred form. Experience in the operation of vending machines has shown that when an empty coin-carrier is suddenly brought to a stop after a limited amount of rotation, a great deal of unnecessary noise may be caused by this idle movement of the coin-carrier. It is a fact that persons, especially children, will toy with the operating member on the outside of a vending machine without depositing a coin. To avoid this unnecessary noise caused by playing with the machine, Iy provide the beveled edge l? at one end of each coin-receiving recess. Also, it is not necessary that two coin-receiving recesses be provided on the coin-carrier l. The sole purpose in providing two, as shown in the drawings, is to require but a short rotation of the coin-carrier before the deposited coin will fall into one of the recesses. The machine will work just as well with only one recess in the coin-carrier. The projection 24 lies within the circumference of the coin-carrier and is arranged in the circle of movement of the beveled edges 30. lVhen a coin is inserted into the coin-entrance slot, it falls upon some portion of the coin-carrier. The position of the coin-carrier at the moment when the coin is inserted, is utterly immaterial. Should it happen that one of the recesses 2 is in direct alignment with the coin-entrance passage, the coin will at once fall into proper position in the recess. When the coin-carrier is in that precise position, the beveled edge 3() of the opposite recess will lie over the projection 24 and will have repressed the same. This last mentioned point in the operation of the machine is immaterial, for no matter in what position the coin-carrier may be when the coin is deposited, the forward rotation of the coin-carrier will cause the coin to drop into one of the recesses 2 and will cause the beveled edge 30 of the other recess to repress the projection 24. Therefore, when the further rotation of the coin-carrier brings the coin against the projection 24. the latter will remain repressed, for the coin is of substantially the same thickness as the coin-carrier, and is in effect a continuation thereof.

-When the pawl 19 is in normal positionthat is to say, when the projection 24 extends into the coin-passage P, as shown in Figs. and 11.- tlie beveled edge 23 of the extension 22 swings the arm 14 into the position shown in Figs. 3 and 4. In that position of the arm 14, the stop 16 is in alignment with the shoulder 18 of the slide 7. When the arm 14 is thus held in locking position by the pawl 19, the coin-actuated slide 7 is locked against full downward movement, its movement being arrested as soon as the stop 16 comes into Contact with the edge 31 of the shoulder 18. It is only when the extension 22 of the pawl 19 is out of engagement with the arm 14 that the latter hangs in an inoperative position, as shown in Figs. 1 and 2. In this, which may be called the normal position of the arm 14, the stop 16 is out of the path of movement of the shoulder 18, and the slide 7 is free to be moved out of the way by a proper coin in the carrier 1. Although I have shown the arm 14 provided with a weighted portion 32, which rocks the arm into unlocking position as soon as released by the pawl 19, it is obvious that suitable spring means might be employed for the same purpose.

When a good coin is deposlted in the. machine, and the coincarrier rotated forwardly in the direction indicated by the arrow a,'tl1e pro'ection 24 of the pawl 19 1s cammed out o the coin-passage'P by the beveled edges 30 of the coin-carrier, and 1s held in that repressed position by the coincarrier and the coin. As the coin is approximately of the same thickness as the coin-carrier, it becomes in effect a part of the comcarrier, and so holds the projection 24 out of the coin-passage in the same way as the coin-carrier itself. When the coin in the coin-carrier engages the beveled edge 12 of the extension 11 on the slide 7, the latter is forced downwardly. During this movement of the parts, the arm 14 hangs in unlocking position, as shown in Figs. 1 and 2, because the extension 22 of the pawl 19 is bem held out of contact with the extension 27 o the arm 14 by the coin-carrier and the coin itself. Consequently, the slide 7 is free to be depressed by the coin until the latter is carried past the ,extension 11 and over the guiding edge 33 of the coin-paage through the discharge opening 34, whence the coin falls into operative position within the machine. Or, the coin may perform its intended function while it is being carried through the coin passage and before it reaches the exit opening 34. The particular function of the coin in the machine is immaterial, so far as my invention is concerned. The coin may operate either a goods ejector, or make an electrical connection, or perform any other desired function.

Let us now suppose that a washer is deposited in the machine and the coin-carrier rotated forwardly. As soon as the opening in the washer comes opposite the projection 24 of the pawl 19, the spring 28 throws the projection 24 into the opening of the washer. This movement of the pawl 19 causes the inclined edge 23 of the extension 22 to engage the extension 27 of the arm 14 and thus move the arm into the locking position shown in F igs. 3 and 4. In this position of the arm 14`v the stop 16 is in the path of movement of the shoulder 18. Therefore, as soon as the lower edge 31 of-the shoulder 18 encounters the stop 16 ofthe arm 14, further downward movement of the. slide 7 is arrested, and the washer as well asthe coincarrier are locked against further forward movement. This is clearly shown in Figs. 3 and 5, where' the washer is indicated by W.

In order to facilitate the locking engage ment between the shoulder 18 and the stop 16, the engaging edges or surfaces of those two parts are oppositely beveled, so that the two interlock as soon as they meet. The action of the parts in arresting a washer is and coin-carrier are not arrested by engage- A ment with-the projection 24 of the pawl 19,

but by the locking engagement between the slide and the arm 14. In other words, the

abrupt edge 25 of the projection 24 possesses no washer-catching function, but is for the purpose of stopping coins of too-small diameter, as will presently be explained. The

abrupt edge 25 does not engage the inner edge of the washer to lock the washer, but the projectiton 24 simply enters the opening of the washer for the purpose of controlling some other mechanism by means of which the arresting of the washer and the coincarrier is brought about. Therefore, as far as the washer-catching feature of my invention is concerned, the upper edge'25 of the projection 24 need not be abrupt as shown, but the. projection could simply be in the form of a rounded button or any similar shape, so long as the lower edge 26 is beveled to permit a removal of the washer by reverse rotation of the coin-carrier.

The slide 7 is locked against full movement by the arm 14, not only when a washer is deposited, as above described, .but also when a coin or check of less than the required thickness is present. In Figs. 8 and 9, I have shown a disk D which is of less thickness than a proper coin, and therefore of less thickness than the coin-carrier. When the disk comes opposite the projection 24 of the pawl 19, the projection 24 is moved a slight distance into the coin-passage, and this movement is sufficient to cause the beveled edge 23 to actuate the arm 14 into the position shown in Fig. 8, where it will be seen that the stop 16 is in alignment with the shoulder 18 of the slide 7. Therefore, the forward movement of the coincarrier and the thin disk D is arrested as soon as the shoulder 18 and the stop 16 come into locking engagement. As previously explained, the engaging edges of the stop 16 and shoulder 18 are oppositely beveled, so that, when these two locking parts meet, the stop 16 will be forced by the edge 31 from the position shown in Fig. 8 into the position shown in Fig. 3, the same as when a washer was deposited. In this Way, a slight movement of the arm 14 toward the slide 7, is suicient to insure a locking engagement between the two.

In order to cause the pawl 19 to perform the additional function of arresting disks of smaller size than the intended coin, I make the upper edge 25 of the projection 24 in the form of an abrupt shoulder. A

spring 35, pivoted at 36 to the rear plateB of the support A, is at its free end formed with a beveled head 38 arranged to extend through an opening 39 of the plate 37 into the coin-passage P. I have shown the spring 35 only in Figs. 10 and 11, so as not to obscure the other figures. The purpose of the spring-pressed beveled head 38 is to engage the face of the coin or disk. If the deposited coin or disk is of smaller diameter than that of the prescribed coin, the spring head 38 will retard the movement of the disk E relatively to the movement of the coin-carrier, and a space or gap 40 is formed between the lower edge of the disk E and the coin recess 2. This is clearly shown in Fig. 10. It will be understood in this connection that the coin recess 2 is formed to fit almost eX- actly a coin of the proper size, so that a smaller coin will leave the recess 2 when retarded by the spring 38. As soon as the gap 40 comes opposite the projection 24 of the pawl 19, the spring 28 thrusts the projection 2i into that gap. The result is that the lower edge of the small disk E encounters the abrupt locking shoulder 25 of the projection Q4, and the disk and coin-carrier are locked against further forward movement. The disk E, however, may by a reverse rotation of the coin-carrier, be carried back to the coin-entrance, whence it may be removed by hand.

It will be seen from the foregoing that I have provided a very simple, compact and efficient mechanism, which in its preferred form has three distinct coin-testing functions-namely, prevents washers, checks which are too thin, and checks which are too small, from passing into the machine, at the same time allowing the intercepted checks to be withdrawn to keep -the coinpassage clear.

Although I have herein set forth a specitic form of mechanism embodying my invention, I will have it understood that I do not intend to be limited to the details shown and described. It is obvious that, in its broad aspect, my invention may be mechanically carried out in other ways than that set forth.

Having thus described my invention what I claim as new and desire to secure by Letters Patent of the United States, is:

1. In a coin-controlled machine, a shallow upright casing provided with a coinpassage and a coin-entrance slot, said passage and said slot being in the plane of said casing, a coin-carrier operable in the plane of said casing for conveying the deposited coin through said passage, a yieldably mounted pawl movable transversely, of the plane of said casing and having a portion normally projecting into said passage, said projecting portion being repressed y a proper coin on said carrier to permit full operative movement of the carrier, and a device mounted to operate in the plane of said casing and controlled by said pawl for positively locking said carrier against forward movement when the check on said carrier allows said projecting portion to extend a predetermined distance into said coin-passage, said projecting portion permitting reverse movement of the coin-carrier to bring the intercepted check back to the coin-entrance slot for removal, said mechanism being in unlocking position when said projecting portion of the pawl is held out of the coin-passage.

2. In a coin-controlled machine, a casing provided with a descending coin-passage and a coin-entrance slot, a coin-carrying disk rotatable in said coin-passage for conveying the deposited coin therethrough, a member on the outside of said casing for operating said disk, a yieldably mounted pawl having a portion normally projecting into said coin-passage, means on said disk for repressing said projecting portion when the disk is rotated empty, said projecting portion being also repressed by a proper com in said disk to permit full operative movement thereof, and mechanism controlled by said pawl and mounted independently thereof for positively locking said disk against forward rotation when the check in said disk allows said projecting portion to extend a predetermined distance into said coin-passage, said projecting portion permitting reverse rotation of the disk to bring the intercepted check back to the coin-entrance slot for removal, said mechanism being in unlocking position when said projecting portion of the pawl is held out of the coin-passage.

3. In a coin-controlled machine, a casing provided with a coin-passage and a coinentrance slot, a coin-carrier for conveying the deposited coin through said passage, a yieldably mounted pawl having a portion normally projecting into said passage, said projecting portion being repressed by a proper coin on said carrier to permit full operative movement of the carrier, a yieldable member in the path of movement of the coin on said carrier and adapted to be moved out of the way by the coin to permit operative movement of the carrier, and a movable locking device controlled by said pawl for locking said member against movement by the check on said carrier when said check allows said projecting portion to eX- tend a predetermined distance into said coin-passage, said projecting port-ion of the pawl permitting reverse movement of the coin-carrier to bring the intercepted check back lto the coin entrance slot for removal, said device being in unlocking position when said projecting portion of the pawl is held out of the coin-passage.

4. In a coin-controlled machine, a casing provided with a descending coin-passage and a coin-entrance slot, a coin-carrying disk rotatable in said coin-passage for conveying the deposited coin therethrough, a member on the outside of said casing for manually operating said disk, a yieldably mounted pawl having a portion normally projecting into said coin-passage, means on said disk for repressing said projecting portion out of the coin-passage to permit rotation of said disk when empty, said projecting portion being repressed'by a proper coin in said disk to permit full operative movement thereof, a yieldable member in the path of movement of the coin in said disk and-adapted to be moved out of the way by the coin to permit full forward rotation of said disk, and a movable locking device controlled by said pawl for locking said member against movement by the check in said disk when said check allows said projecting portion to extend a predetermined distance` into said coin-passage, said projecting portion permitting reverse rotation of the coin disk to bring the intercepted check back to the coin-entrance slot for removal, said device being in unlocking position when said projecting portion of the pawl is held out of the coin-passage.

5. In a coin-controlled machine, a casing provided with a coinpassage and a coinentrance slot, a coin-carrier for conveying the deposited coin through said passage, a yieldable member projecting into the path of movement of the coin through said passage and adapted to be moved out of the way by a proper coin, and mechanism controlled by the thickness of the check in said carrier for locking said member against movement when said check is of less than predetermined thickness at its center, whereby said coin-carrier and said check are locked against forward movement, said mechanism permitting reverse movement of the coin-carrier to bring the intercepted check back to the coin-entrance slot for removal.

6. In a coin-controlled machine, a easing provided with a coin-passage and a coinentrance slot, a coin-carrier for conveying the deposited coin through said passage, a yieldably mounted pawl having a portion normally projecting into said passage, said projecting portion being repressed by a proper coin on said carrier to permit full o erative movement of the carrier, a yielda le member in the path of movement of the coin on said carrier and adapted to be moved out of the way by said coin to permit operative movement of the carrier, a movableilocking device mounted independently of said pawl and provided with a. normally inoperative sto and means on said pawl for actuating said device to move said stop into positionto lock said memberv against movement by the check in said carrier when said check allows' said projecting portion to extend a predetermined distance into said coin-passage, said projecting portion permitting reverse movement of the coin-carrier to bring the intercepted check back .to the coin-entrance slot for removal, said stop being in unlocking or inoperative position when said projecting portion of the pawl is held out of the coin passage.

7. In a coin-controlled machine, a coincarrier. a yieldable pawl 'having a portion projecting into the path of the ooin on said carrier, said projecting portion being moved out of the way by a proper coin on the carrier, a movable locking device arranged to be actuated by said pawl into locking posit1on when the check on said carrier is of less than predetermined thickness at the point where it engages said projecting portion of the pawl, and a member independent of the coin-carrier for locking said coin-carrier against forward movement when said device 1s 1n locking position, said projecting portion of the pawl permitting reverse movement of the coin-carrier for the removal of the intercepted check.

8. In a coin-controlled machine, a casing provided with a coin-passage and a coin-entrance slot, a coin-carrier having a recess for receivlng the deposited coin to convey the same through said passage, a pivoted pawl having a head normally projecting into the path of the coin in said carrier, said projecting head having an abrupt upper edge and an inclined lower edge, and a spring having a portion arranged in the path of the coin in said carrier to retard the movement of a too-small coin'or check with respect to the movement of said carrier before said coin or check reaches the projecting head of said pawl, whereby a. space or gap is formed between the lower edge of the too-small coin or check and said recess of the coin-carrier to allow said head to project into said space or gap, the abrupt upper edge of said head engagmg the lower edge of the too-small coin o r check and thereby looking the coin-carrler against further forward movement, said inclined lower edge of the pawl head permitting reverse movement of the coin-carrier to bring the intercepted coin or cheek back to the coin-entrance slot for removal.

9. In a coin-controlled machine, a casing provided with a descending coin-passage and a coin-entrance slot, a disk rotatable in said coin-passage and having a recess for receiving the deposited coin to convey the same through said passa-ge, an upwardly extending pawl pivoted at its lower end at one side of said coin-passage and provided at its upper end with a head projecting normally into the path of the coin in said disk, said projecting head having an abrupt upper edge and an inclined lower edge, and a spring mounted at the opposite side of said coin-passage, said spring having a portion arranged in the path of the coin in said carrier to retard the movement of a too-small coin or check with respect to the movement of said coin-carrier before said coin or check reaches the head of said pawl, whereby a space or gap is formed between the lower edge of the too-small coin or check and the coin-recess of the disk to allow said head to project into said space or gap, the abrupt upper edge of said head engaging the lower edge of the too-small coin or check and thereby locking said disk against further forward movement. said 1 nclined lower edge of the awl head permitting reverse rotation of said disk to carry the intercepted coin or check back to the coin-entrance slot for removal.

10. In a coin-controlled machine, an iipright casing provided with a descending coin-passage and a coin-entrance s lot, a coincarrier having a recess for ieceiving the deposited coin to convey the same downwardly through said passage, a pivoted pawl having a head normally projecting into the path of the coin in said carrier, said projecting head having an abrupt upper edge and an inclined lower edge, and a device for retarding the descending movement of a too-small coin or check with respect to the movement of said carrier before said coin or check reaches the projecting head of said pawl, whereby a space or gap is formed between the lower edge of the too-small coin or check and said recess of the coin-carrier to allow said head to project into said space, the abrupt upper edge of said head engaging the lower edge of the too-small coin 'or check and thereby locking the coin-carrier against further forward movement, said inclined lower edge of t-he pawl head permitting reverse movement of the coin-carrier to bring the intercepted coin or check back to the coin-entrance slot for removal.

11. As a new article of manufacture, a coin-testing member for coin-controlled machines, comprising a main body portion, a head projecting from said body portion in the plane thereof, said head having an abrupt edge and an inclined edge, and a beveled portion extending laterally from said body portion, for the purposes specified. i

12. As a new article of manufacture, a coin-testing member for coin-controlled machines, said member being formed of a single piece of fiat metal having a main body portion, one end of said body portion being bent laterally thereof and having a beveled edge, and a beveled head projecting from said body portion in the plane thereof near said lateral portion, for the purposes specified.

13. As a new article of manufacture, a coin-testing member for coin-controlled macoin-passage leading from said slot, acoincarrier for'receiving the deposited coin and carrying the same through said passage, a yield-able member havin a portion nor` mally projecting into said coin-passage but adapted to be moved out of the way by a proper coin in the coin-carrier, and mechanism Separate from said member and controlled thereby for locking said coin-carrier against forward movement when the check on said coin-carrier allows said projecting portion to extend into said coin-passage, said mechanism including a yieldab-le element arranged to be engaged. byV the edge of the coin or check in said coin-carrier.

15. In a coin-controlled machine, a rotatable coin-carrier, a pivoted member adapted to engage the face of the coin or check in said coin-carrier, and mechanism separate from said member and controlled thereby for locking said coin-carrier against forward rotation when the check in said coin-carrier is of less than predetermined thickness at any point where it contacts with said member, said member and said mechanism being mounted to operatein planes at right angles to each other.

16. In a coin-controlled machine, a coincarrier, a movable member adapted to engage the face o-f the coin or check in said coin-carrier, a movable locking device controlled by said member and adapted to be moved into locking position when the check on said coin-carrier is of less than predetermined thickness at any point where it contacts with said member, and means arranged to be engaged by the edge of the coin or check in the coin-carrier for loc-king said coin-carrier against forward movement when said device is in locking position, said coin-carrier being reversely movable to carry the intercepted check into refunding position.

17. In a coin-controlled machine, a coincarrier, a movable member having a portion adapted to engage the fac/e of a. coin or check in said coin-carrier, said engaging portion having a locking surface, and a de vice for positively retarding the movementv of a too-small coin or check with respect to the movement of said 'coin-carrier before said coin or check reaches said engaging portion, whereby a space or gap is definitel formed between said too-small coin or chec and said coin-carrier to allow said engaging portion to project into said space -or gap, so that said locking surface engages the edge of the too-small coin or check and thereby positively locks the coin-carrier against .further forward movement, said coin-carrier being reversely movable to carry the intercepted coin or check into refunding position.

18. In a coin-controlled machine, a rotatable coin-carrier, a movable member having a projection for engaging the forward edge of a too-small coin or check in said coin-carrier and thereby positively arresting said coin-carrier against further movement, an actuating element carried by said member, and mechanism for arresting the forward movement of said coin-carrier when it carries a check of less than predetermined thickness at the center, said mechanism being actuated by said element and the position of said element being controlled byA said projection.

19. In a coin-controlled machine,'a coincarrier, a movable member provided with a projection having two coin-engaging surfaces, one of said surfaces being adapted to engage the face of a coin or check in said coin-carrier, the other surface being adapted to engage the forward edge of a too-small coin or check in said coin-carrier and thereby lock said too-small coin or check against further movement into the l machine, sai'din said coin-carrier, and mechanism for projection permitting reverse rotation of the coin-carrier for removal of the too-small coin or check, and mechanism controlled by said member and mounted independently thereof for locking said coin-carrier against forward movement when the check in said coin-carrier is of less than predetermined thickness at any point w ere it contacts with the first-mentioned surface of sai` member. j

20. In a coin-controlled mechanism, a shallow upright casing adapted to be sa cured toa vending machine, said casing 5.aing provided with a coin-passage an a coin-entrance slot arran ed both in the plane in the casing, a rotata le coin-carrier operable in said coin-passage to receive a deposited coin or check and carry it downs wardly into operative position, a. member mounted in said casing to operate in a plane transversely thereof, and means on said member for entering the hole of a washer and for engaging th'e edge of a too-small coin or check in said coin-carrier, thereby locking said coin-carrier against further forward rotation, said member permitting reverse rotation of the coin-carrier for ready removal of the intercepted coin or check through the entrance slot.

21. In a coin-controlled machine, a coincarrier, a movable member arranged to be engaged by the edgev of a proper coin in said coin-carrier and thereby moved out ofl the way, a second movable memberv adapted to engage the face of a coin or check in said carrier, and mechanism for locking said first member against movement when the coin or check engaged by said second member is of less than predetermined thicknessl at the center. l

22. In a coin-controlled machine a rotatable coin-carrier, a spring-presse member arranged to be engaged by the ed e. of a proper com in said com carrier and t ereby moved out of the way, a pivoted device arragged to engage the face of a coin or check locking j said member against movement when the coin or check engaged by said device is of less than predetermined thiclmess at the center.

23. In a coin-controlled machine, a rotatable coin-carrying'disk, a movable member mounted to operate in a plane transversely to the plane of said disk, and means on said member for entering the hole of a. washer and for engaging the ed e of a toosmall coin or check held in said 'sk, whereby said disk is locked against further forward rotation, said means permitting re'- verse ratation of the disk for removal of the interet ed coin or check. j

In witness whereof, I hereunto subscribe my name this 21st da of August, 1917.

ALB RT D. -GROVER

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