US2317593A - Coin controlled release mechanism - Google Patents

Description

April 27, 1943. G. w. DOOLEY ,3

COIN CONTROLLED RELEASE MECHANISM Filed Feb. 1, 1939 2 Sheets-Sheet 1- v 5 LINVENTOR.

ATTORNEYS 2 S hee ts-S'neet 2 Filed Feb 1 I! 14! all I 1 I Ill/1ft! ||/l F i m y ml/L I I 5 n0 1 Z 4 J M 6, m "a 4/ I M. n 5 1 o 4 U o 51/1! I 1 5 M F v "if."

v I LOO-vfifi/INVENTOR.

ATTORNEYS Patented Apr. 27, 1943 UNITED STATES PATENT OFFICE or to Milton R. Calif.

Standish, San Bernardino,

Application February 1, 1939,. Serial No. 254,025

8 Claims.

This invention relates to acoin-controlled release mechanism. This mechanism maybe employed for releasing any movable part that is intended to be moved after the insertion of a coin, or coins, in a coin-receiving device. Such release mechanism may be employed for enabling a door, or a drawer, to be opened, or for any other similar purpose. It is also useful for controlling the ejector of a vending machine; and in the present specification the invention is described as applied to a vending machine for vending newspapers.

One of the objects of the invention is to provide a coin-controlled release mechanism, in which the release can be efiected by means of a coin of a larger denomination, or by means of coins of a lower denomination; for example, by means of a dime, or by means of two five-cent coins. A release mecchanism Operating in this way is very desirable because it enables the release mechanism to be operated regardless of whetherthe person wishing to operate it has a coin of the proper denomination; for example, in selling a newspaper or a magazine selling for ten cents, the release mechanism could be operated by the insertion of a dime, or by the insertion of two five-cent pieces in the machine.

Many types of coin-controlled mechanisms are now in use, and certain coin-controlled slides are also in common use. One of the objects of the present invention is to provide a construction for enabling a common type of coin-receiving means to be employed, constructed for operation by means of coins of diiierent denominations, and to provide simple means for cooperating with the same to enable the release mechanism to be operated enither through the medium of a single coin of a higher denomination, or a plurality of coins of a lower denomination.

A further object of the invention when applied to a vending machine, is to provide simple means for preventing the machine from being operated in such a way as to permit the removal of more than a single vended article as a result of the insertion of the price of the article in a coin, or coins.

Further objects of the invention will appear hereinafter.

The invention consists in the novel parts and combination of parts to be described hereinafter, all of which contribute to produce an efficient coin controlled release mechanism.

A preferred embodiment of the invention is described in the following specification, while the broad scope of the invention is pointed out in the appended claims.

In the drawings:

Fig. 1 is a vertical section through one end of a newspaper vending machine embodying my invention, certain parts being broken away.

Fig. 2 is a horizontal section taken about on the line 2-2 of Fig. 1, certain parts being broken away, and further illustrating details of the mechanism.

Fi 3' is a vertical section taken about in the plane of the line 3-3 of Fig. 1, and particularly illustrating details of the releasing mechanism for the ejector.

Fig. 4 is also a vertical section but taken about in the plane of the line 44 of Fig. 1, and particularly illustrating a check device for preventing a fradulent operation of the machine, which would enable more than one vended article to be delivered from the machine on a single coin payment. I

Fig. 5 is a vertical section taken about on the line 5--5 of Fig. 1, and illustrating a. one-way check device which operates in such a way as to prevent a partial actuation of the ejector.

Fig. 6 is a fragmentary vertical section taken through one of the coin-receiving devices, and illustrating how the presence of the coin enables the coin-receiving device to transmit motion to actuate the release mechanism.

Fig. 7 is a perspective of the detent bar, which is one of the novel elements of the machine.

Before proceeding to a more detailed description of the invention, it should be stated that in practicing the invention I construct the mechanism in such a way that the desired release can be efiected through the use of a single coin of a high denomination, or a plurality of coins of a lower denomination equal in sum to the value of the single coin. The principle on which the machine operates is that when a single coin of higher denomination is employed, it enables a detent to be given its complete or full movement immediately, thereby moving it from its position of rest in which it obstructs the movement of the part that is to be moved, to its releasing position. The mechanism can be used for various purposes; for example, as a lock for a locker door, or closet door, or a drawer, or any situation where a customer is to be provided with an article, or access to space through the medium of coins introduced into the machine. When the coins of smaller denomination are introduced in succession, each operation of the coin-receiving device will effect a partial movement of the detent toward its releasing position. In other words, the mechanism is so constructed that it can be operated by a coin of higher denomination; for example, a dime, and also by the insertion of two five-cent coins requiring two operations of the five-cent coin-receiving device.

Referring more particularly to the specific construction illustrated, and with special reference to Figs, 1 and 2, the mechanism is mounted in a casing I of any suitable construction, preferably including a magazine 2 in which the articles 3, such as newspapers to be vended, are received. At one end of the casing a substantially vertical partition wall or frame plate 4. may be provided, on which most of the mechanism of the machine is mounted.

At an elevated point at the front wall 5 of the casing, I mount a plurality of coin-receiving devices. two of these devices, one of which is constructed to be operated by the insertion of a dime, and the other of which is constructed to be operated by the insertion of five-cent pieces, or nickels. These coin-receiving devices 6 and I are preferably mounted side by side. Of course, these coin receivers may be adapted to operate on any other denomination of coins. In the present instance, they can be operated with dimes and nickels, because these denominations particularly adapt the machine for selling newspapers or other periodicals that sell for a dime. The coin-receiving devices'fi' and I are preferably of the common slide type; that is to say, each coin receiver is formed with a push slide 8 (see Fig. 6) and guided to slide in a horizontal position in a suitable guide 9. The forward end of each slide 8 presents'a pocket in which a coin such as a. coin I can be inserted, and when the coin has been inserted,by pushing upon the slide 8, drivers indicated generically by the number II, also in the form of slides guided in the guide 9, can be pushed forwardly. I utilize this forward movement of the two drivers Ila and III) to operate the releasing mechanism.

These coin-receiving devices 6 and I are mounted or so adapted that the slide corresponding to the coin of larger denomination; for example, the slide having the driver Ila, will give the release mechanism twice as much movement as the driver I lb. It is obvious that this could be the driver Ila with a removable extension or,

headl2, and mounting the slides in alignment laterally.

Referring now particularly to Fig. 1, the actuator I3 is preferably in the form of a bell crank lever having an upper arm in the path of the head l2, and the driver Nb, and having a lower arm. 14 that carries means for actuating the detent that normally prevents movement of the movable part; for example, the ejector of the machine; This bell crank lever I3 is pivotally mounted on the vertical frame plate 4.

The detent that is advanced by movements of th actuator I3, is preferably in the form of a detent bar i guided to slide vertically, or in a more or less upright position on the face of the frame plate 4.

,7 Any suitable means may be provided for In the present instance, there are only enabling the actuator l3 to move the detent bar l5, but in the present instance this is accom-- plished by providing a dog or driving pawl I61 that is pivotally mounted on the end of the arm. I 4. The pawl l6 projects up from a plate-likev body i1, and in the position of rest of the actuator the lower edge of this body I! is seated on a bracket IB upon which it is held by any suitable means such as a coil spring I 9. When the actuator I3 is operated by the nickel coin-receiving device 1, the driver Hb will strike a transverse plate 20 carried by the upper end of the actuator, and will push the sam rearwardly toward but not up to a vertical position indicated by the dotted lines 2|; but this movement will move the arm l4 through a small angle equal to about half of the angle between the upper arm of the bell crank lever I3 and the vertical line through its pivot, as indicated in Fig. 1. When this movement occurs, as the arm I 4 moves upwardly, the spring I 9 will pull the dog or pawl [6 into an actuating notch 22 in the detent bar l5, and further movement of the actuator will advance the bar l5 in an upward direction, raising it to an intermediate but nonreleasing position, that is to say, sufliciently to enable latch means to engage a latching notch 23 on the opposite side or edge of the bar l5. This latch means is preferably in the form of a pawl 24 that is pulled toward the bar I5 by a coil spring 25. This latch means will therefore hold the bar l5 in this partial advanced or intermediate position, that is, moved toward its releasing position, but still in a non-releasing position. A second operation of the coin device I will give a second movement to the actuator I3, causing the pawl IE to engage in the second notch 26 just below the notch 22. This second movement of the actuator [3 will advance the detent bar an amount equal to its first advance, enabling the latch pawl 24 to engage in a second latching notch 21. Lifting the detent bar l5 in this way will move it into a position such that it will release the ejector of the machine and permit its operation. Any suitable means may be employed for enabling the detent bar to obstruct the movement of the ejector when the detent bar is in its position of rest, and so as to enable the detent bar to free the ejector in its advanced position. In the present instance, however, in order to accomplish this, I prefer to provide the side of the bar l5 with a clearance notch or gap 28. In the completely advanced position of the detent bar l5, this notch will come into i alignment with a dog 29 that is a projection from the face of a slide bar 30 that is connected with th ejector 3| within the magazine 2, and which is operated to eject the newspapers 3. The bar 30 is connected up to the ejector so that when the ejector is operated, this bar 30 moves forward. In the present instance, the machine is provided with an actuating shaft 32 having a rigid arm 33 connected by a link 34 to the under side of the bar 30. The shaft 32, where it passes through the lower part of the magazine, is provided with rigid arms 35 connected by links 36 to the ejector 3! so that when the shaft 32 is rotated the ejector will be moved forward. The construction of the ejector will be described more fully hereinafter. The shaft 32 can be rotated through the agency of a pull rod 31 guided through th forward wall 5 of the machine and provided with a knob 38 at its forward end. The rear end of this pull rod or stem 3'! is pivotally attached to the rigid arm or lever 33 carried by the shaft 32. In the operation of the machine, if a dime is inserted in the coin-receiver 6, instead of inserting two nickels in the coin-receiver l as already described, the driver head I2 will move th upper arm of the actuator l3 immediately through an angle such as that indicated by the dotted lines 2|. In other words, the movement imparted to the detent bar |5 will carry the lower latching notch 21 up to the level of the point of the latch 24, is one single movement.

The mechanism is provided with means for automatically releasing the latch 24 when the ejector 3| is actuated. For this purpose a laterally projecting pin may be provided on the latch that is in the path of the bracket plate 4| projecting up from the slide bar 30. A return spring in the form of a coil spring 42 may be attached to this bracket plate 4| and to a fixed pin 43 to assist in returning the bar 30 and the ejector 3| to their normal position.

The machine is preferably provided with means for insuring that when an ejecting movement is started, the ejector will be moved forward all the way. In other words, it cannot be given a partial movement and then returned to its startting position. For this purpose I provide a check pawl 44 to cooperate with rack teeth 45 formed on the upper edge of the bar 30. This check pawl 44 is pivoted for free movement, and for this purpose I prefer to mount it on the pin 43. The check pawl has a tapered nose at its lower end, the tip of which lies adjacent to the level of the roots of the teeth 45. In the position of rest of the ejector and the bar 33, the nose of this check pawl lies at a gap 46 or cut-away portion for the upper edge of the bar that is out down to the level of the roots of th teeth. A spring is provided for enabling t'his pawl to be deflected in either direction by the rack teeth passing the same, but the pawl will operate to prevent any return movement until the rack has passed completely out of contact with the pawl. At the end of th rack the teeth 45 are also omitted so as to form a gap or cut-away portion 41. When this gap or relief edge at 41 arrives under the pawl at the end of the forward movement of the ejector, the spring on the pawl can pull it back into an upright position, enabling the pawl to swing in the opposite direction on its pivot when the bar 30 is returning to its normal position. In the present instance, the spring for the pawl is in the form of a coil spring 48 attached to the'upper end of the pawl and having its upper end attached'to the upper end of the guide 49 in which the bar 30 is guided.

' In the operation of the machine, the person operating it is instructed to insert the coin in the coin slide, push the coin slide inwardly, and then let go. A spring associated with the coin slide (not illustrated) returns the coin slide to its initial position. However, it might occur to a dishonest person that by not letting go of the coin slide to permit its return, the coin shoe would then continue to hold the actuator l3 in a releasing position, that is to say, while the latch 24 is holding the detent bar l5 in its released position, thereby permitting advancing movement of the bar 30. If, under these circumstances, the knob 38 were advanced a short distance insufficient however, to trip the latch pawl 24 with the bracket plate 4i, the articles such as the papers 3 in the vending machine could be shoved out through the-delivery opening of the machine.

In order to prevent this, I prefer to provide another check device operating in'such a way that although it will not interfere with the forward movement of the bar 30, it will operate to prevent a reciprocating movement of the bar 30 with a very slight travel. In other words, this check device supplements the operation of the check pawl 44 but is more in the nature of a positive lock for locking the bar 30 against operation in a fraudulent manner. For this purpose I provide the lower edge of the bar 30 with a recess or notch 50, and adjacent to the location of this notch I provide a guide 5| having a vertical guideway 52 for a locking pawl or bolt 53, the upper end of which is formed with a nose to fit into the notch 5|]. This locking bolt 53 is provided with a wire stem 54 that extends upwardly from the same, and which is connected to a coil spring 55, the upper end of which is attached to the lower arm M of the actuator I3. In the position of rest illustrated in Fig. 1, this spring 55 is not in tension, but as soon as the actuator I3 is actuated, tension will be exerted in this spring to pull the lock 53 up against the lower edge of the bar 30, and hence if the operator of the machine then attempts to pull the knob 38 to operate the ejector, the bolt 53 will immediately be pulled up into the notch 50 and arrest any further movement of the notch, and the ejector and bar 3|).

If the lock bolt 53 is of sufiicient weight and there is no resistance in its guide 52, it could return by gravity; but in order to prevent any possibility of this not occurring, I prefer to provide a small coil spring 56, the lower end of which is anchored on the outside of the guide 5| and the upper end of which is attached to a pin on the latch bolt running in a slot 5'! in the guide (see Fig. 4). It should be understood, however, that the spring 56 is a weak spring, and its force is immediately overcome by building up tension in the spring 55.

The coin-receiving devices 8 and l are constructed so that as soon as the slide has been given its full rearward movement, the coin falls out of the coin device and into a coin drawer or receptacle 58.

The case is provided with a removable cover 59, which may be locked in place by means of a lock 6i) into which a key may be inserted from above, said lock being provided with a bolt 6| that will project under the edge 62 of the cover opening.

The ejector 3| is in the form of an elongated plate, which may be provided at its rear edge with a downward y projecting flange 63 to which the return spring 64 in the form of a coil spring is attached. The ejector 3| is in the form of a long plate, the ends of which are received quite loosely in a channel-shaped guide (see Fig. 5).-

In other words, the guide presents horizontal flanges 65 between which the end of the ejector fits quite loosely, and in such a way as to permit the forward end of the ejector to be tipped upwardly when the ejector is operated. In order to give this mode of operation, I provide a construction whereby the operating links 38 already described, will exert an upward thrust as they move the ejector forward. For this purpose these links 36 incline upwardly in a forward direction as indicated in Fig. 1, their forward ends being attached pivotally to small angle brackets 65. The ejector bar is provided with upwardly inclined sharp teeth 6'! preferably in the form of Wire teeth. vThese teeth engage the lowermost paper 3 that is to be vended, and operate to push it out through a delivery opening 68 in the forward wall 5 of the case. This opening is normally closed by an offset cover 69 that has a hinge connection on the inside. This flat cover 89 is constructed so that it more or less obstructs the delivery opening 68, although it will permit the delivery of the paper through it,

The papers 3 are supported on a shelf or false bottom II, and this bottom is provided with clearance slots 12 for the ejector teeth 61.

Referring again to Fig. 2, I prefer to construct the driver Nb of the nickel coin slide, in such a way that when desired, the extension or head I2 can be removed from the ten-cent coin device and applied to it. This gives the machine great utility in selling daily papers including Sunday editions, because during week daysthe head I2 can be attached to the five-cent coin slide. This will enable the five-cent coin slide to operate the machine to deliver a paper. On Sunday, when the editions of the paper sell for ten cents, the head I2 would be located on the dime coin slide as illustrated in Fig. 2. This will enable the machine to be operated either by a ten-cent piece or by two nickels, to deliver a paper.

Referring again to Fig. 1, when the latch means 24 is of the kind illustrated, it is preferable to provide a guide bar 24a. This guide bar lies a short distance from the vertical frame plate 4, and is attached to the vertical frame plate 13.

The case is preferably provided with a glass front, or window I4 (see Fig. 2).

The mode of operation of the entire machine will now be described. Upon insertion of a ten-cent coin in the coin-receiver 6, and pushing its slide 8 inwardly, the driver Ha with the extension I2, will be shoved against the plate or cross headZIl at the upper end of the bell crank lever I3, which operates as an actuator for the detent bar I5. By reason of the presence of the head or extension I2, the actuator I3 will be given a complete movement, and as it' rocks, the pawl IE will swing upwardly. and engage the upper notch 22, thereby lifting the detent bar I5 suificiently to bring the notch 28 inline with the projection or dog 29 on the bar 30. The movement of the bar 30 is then unobstructed, and hence when the knob 38 is pulled, this bar 30 will move forward with the ejector 3i, the ejector being actuated through the rock shaft 32 and the arms 35 connecting to the link 42. However, before pulling the knob 38 the coin slide will have been released by the operator. If he does not release it and attempts to operate'the machine, the tension in the spring 55 will pull the lock bolt or pawl 53 up against the lower edge of the bar 30, and when the knob 38 is pulled, this lock bolt will spring into the notch 50 and prevent any further movement of the ejector in either direction until the coin slide is released.

As the check bar 30 moves forwardly when the knob 38 is pulled, the teeth 45 will strike the nose of the check pawl 44 and deflect it toward the left. The check pawl will operate to pre vent any attempt to reverse the movement of the knob 38 in pulling it out. As soon however, as the teeth 45 have completely passed the check pawl, the spring 48 will pull the pawl back into its normal vertical position while the other gap 41 is under the check pawl. This corresponds to the extreme forward position of the ejector.

If a five-cent coin is inserted in the coin receiver 1 (see Fig. 2) its forward end III) will strike the cross head 20, rock the bell-crank I3 and cause the pawl I6 to engage notch 22 and raise the detent bar I5, but the movement imparted will only raise the detent bar I5 to a half-way position with the pawl 24 engaging the notch 23. This forward movement of the slide 8, however, will be sufficient to release the coin, and the slide- 8 will then return to its normal position to receive a second five-cent piece. When the slide 8 advances the second time, it will again engage the cross head 20, and this movement will actuate the bell-crank lever I3 to bring the pawl I6 into the notch 26, which will then be held at the former level of the notch 22. This will give the detent bar l5 its complete releasing movement so that the pawl 48 engages the lower notch 21, thereby holding the detent bar I5 with its notch 28 in a position that will permit the dog 29 to pass the bar when the ejector moves forward.

As soon as the knob 38 is released, the springs 64 and 42 will return the ejector, and the bar 39 to their normal positions of rest.

It is understood that the embodiment of the invention described herein is only one of the many embodiments this invention may take, and I do not wish to be limited in the practice of the invention, nor in the claims, to the particular embodiment set forth.

What I claim is:

1. In a coin control for releasing a mechanism having a moving part, the combination of a movable stop normally disposed in a locking position to prevent movement of the said moving part, and movable into a releasing position in which it permits movement of said moving part, a primary coin-receiving means for receiving a coin of a given denomination, a secondary coinreceiving-means for receiving a coin of a lower denomination, each coin-receiving means having a driver with means for moving the same through a path of travel, an actuator actuated in common by said drivers and projecting into the paths of said drivers, said drivers having engaging points respectively located at different distances from said actuator so that the driver corresponding to the coin of lower denomination will consume more of its travel than the driver corresponding to the coin of larger denomination before engaging the actuator, means associated with the actuator for moving the stop with a step-by-step movement through the agency of successive operations of the secondary driver to advance the stop into its releasing position; said primary driver operating to impart a complete movement to the actuator to move the stop' immediately to its releasing position through the agency of one actuation of the primary driver.

2. In a coin control for releasing a mechanism having a moving part, the combination of a movable stop normally disposed in a locking position to prevent movement of the said moving part, and movable into a releasing position in which it permits movement of said moving part,

. a primary coin-receiving means for receiving a coin of a given denomination, a secondary coinreceiving means for receiving a coin of a lower denomination; each coin-receiving means having a driver with means for moving the same through a path of travel, an actuator actuated in common by said drivers and projecting into the paths of said drivers, said drivers having engaging points respectively located at different distances from said actuator so that the driver corresponding to the coin of lower denomination will consume more of its travel than the driver corresponding to the coin of larger denomination before engaging the actuator, means associated with the actuator for moving the stop with a step-by-step movement through the agency of sucessive operations of the secondary driver to advance the stop into its releasing position; said primary driver operating to impart a complete movement to the actuator to move the stop immediately to its releasing position through the agency of one actuation of the primary driver, and movable means associated with the secondary driver for altering the location of its engaging point so as to enable one operation of the secondary driver to impart a great movement suificient to move the stop to its releasing position in one actuation of the secondary driver.

3. In a coin control for releasing a mechanism having a moving part, the combination of a movable stop normally disposed in a locking position to prevent movement of the said moving part, and movable into a releasing position in which it permits movement of said moving part, a primary coin-receiving means for receiving a coin of a given denomination, a secondary coinreceiving means for receiving a coin of a lower denomination, each coin-receiving means having a driver with means for moving the same through a path of travel, an actuator actuated in common by said drivers and projecting into the paths of said drivers, said drivers having engaging points respectively located at different distances from said actuator so that the driver corresponding to the coin of lower denomination will consume more of its travel than the driver corresponding to the coin of larger denomination before engaging the actuator, a pawl actuated by the actuator, said stop having a plurality of spaced shoulders to cooperate with said awl when the actuator is operated, to advance the stop with a step-by-step movement through the agency of sucessive operations of the secondary driver to move the stop to its releasing position, said primary driver operating to impart a complete movement to the actuator to move the stop immediately to its releasing position through the agency of one actuation of the primary driver.

4. In a coin control for releasing a mechanism having a moving part, the combination of a primary coin slide having means for receiving a coin of a given denomination, a secondary coin slide having means for receiving a coin of a lower denomination, means for supporting and guiding said slides to move substantially parallel with each other, an actuator disposed to the rear of said coin slides, each of said coin slides having a driver with an engaging tip to impinge upon the actuator during the travel of the driver, a stop bar guided to move longitudinally in a direction transverse to the direction in which said moving part moves, said stop bar normally located in a locking position in which it prevents the actuation of said moving part, and capable of assuming a releasing position in which it permits free movement of said moving part, a pawl carried by the actuator for shifting the stop-bar toward its releasing position, said stopbar having spaced shoulders to cooperate with said pawl, the engaging tips of said drivers being located at difierent distances from the actuator with the engaging tip of the primary driver located nearer to the actuator than that of the secondary driver, said secondary driver operating when actuated successively, to advance the stop-bar with a step-by-step movement to its releasing position, and said primary drive; operating upon one actuation of the same to impart suflicient movement to the actuator to move the stop-bar in one operation to its releasing position.

5. In a coin control for releasing an ejector slide for a vending machine, the combination of a primary coin slide and a secondary coin slide mounted and guided to slide in a direction substantially parallel with the direction of movement of the ejector slide, said primary coin slide having means for receiving a coin of a given denomination, said secondary coin slide having means for receiving a coin of a lower denomination, an actuator disposed to the rear of said coin slides, each of said coin slides having a driver with an engaging tip to impinge upon the actuator during the travel of the driver, a stopbar guided to move longitudinally in a direction transverse to the direction in which said coin slides move and normally located in a locking position in which it prevents the actuation of the ejector slide, said stop-bar capable of moving into a releasing position in which it will permit actuation of the ejector slide, and a pawl carried by the actuator for shifting the stop-bar to its releasing position.

6. In a coin control for releasing a mechanism having a moving part, the combination of a movable stop normally disposed in a locking position to prevent movement of the said moving part and movable into a releasing position in which it permits movement of said moving part, a coin-receiving means having a driver associated therewith and movable through a path of travel when the coin-receiving means is operated, an actuator disposed in the path of travel of the driver impinged upon by the driver and moved thereby, and means actuated by the actuator for moving the stop with a stepby-step movement to its releasing position.

7. In. a coin control for releasing a mechanism having a moving part, the combination of a movable stop normally disposed in a locking position to prevent movement of the said moving part and movable into a releasing position in which it permits movement of said moving pa a coin-receiving means, an actuator disposed to the rear of said coin-receiving means, said coin-receiving means having a driver, and means for actuating the driver so that it impinges upon the actuator during the travel of the driver, a movable stop, means associated with the actuator for moving the movable stop with a step-by-step movement to move the same into its releasing position, and a detachable head carried by the driver for increasing the amount of movement that can be imparted by the driver to the actuator, and operating to give the same sufficient movement to move the movable stop by a single actuation, to its releasing position.

8. In a coin control for releasing an ejector slide for a vending machine, the combination of a primary coin slide and a secondary coin slide mounted and guided to slide in a direction substantially parallel with the direction of movement of the ejector slide, said primary coin slide having means for receiving a coin of a given denomination, said secondary coin slide having means for receiving a coin of a lower denomination, an actuator disposed to the rear of said coin slides, each of said coin slides having a driver with an engaging tip to impinge upon the actuator during the travel of the driver, a stop bar guided to move longitudinally in a direction transverse to the direction in which said coin slides move and normally located in a locking position in which it prevents the actuation of the ejector slide, said stop bar capable of moving into a releasing position in which it will permit actuation of the ejector slide, a pawl carried by the actuator for shifting the stop bar to its releasing position, and an extension head attachable to, and detachable from, the secondary driver, operating when attached to the same to enable the secondary driver to move the stop bar to its releasing position in one operation of the secondary driver.

GEORGE W. DOOLEY.

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