US3349881A - Vending cycle lockout circuit - Google Patents

Description

V. D. CAMP VENDING CYCLE LOCKOUT CIRCUIT Filed June 6, 1966 AMP ATTORNEYS United States Patent O 3,349,881 VENDING CYCLE LOCKOUT CIRCUIT Vernon D. Camp, Chattanooga, Tenn., assigner to The Seeburg Corporation, Chicago, Ill., a corporation of Delaware Filed June 6, 1966, Ser. No. 555,436 9 Claims. (Cl. 194-10) ABSTRACT F THE DISCLSURE A lockout circuit for the vend cycle of a multi-selection, coin operated vending machine is provided wherein dispensing from a plurality of columns is controlled by a vend motor for each column. Each vend motor is arranged to be energized during the latter portion of its vend cycle through a timer switch. The timer switch is operably connected to prevent energization of a corresponding selector relay if the timer switch is not in the normal position upon establishment of credit. A cam actuated lockout switch is electrically connected in circuit and adapted to be displaced upon energization of a lockout motor to remove established credit at the proper time and ensure delivery of only one article per credit.

The present invention relates generally to a coin operated vending machine for selectively dispensing articles, one at a time, from a plurality of sources and, more particularly, to a novel lockout circuit for a coin operated vending machine having a multiplicity of stacks or columns each of which is adapted to receive a plurality of articles to be selectively dispensed and a multi-motor arrangement adapted to be energized for dispensing the articles, one at a time, from one of the stacks in response to a selection by a customer. The lockout circuit of the present invention insures delivery of only one article per established credit and allows alternate selection of articles when one selection is stalled.

Coin operated vending machines for selectively dispensing articles, one at a time, from a plurality of sources are Well known. Such vending machines generally comprise a plurality of stacks of articles which may be vertically arranged in columns in side by side relationship. Upon deposit of a suitable coin, credit is established and adispensing cycle is initiated according to the selection of the customer which causes a vend motor to be cycled and a single article to be dispensed from the selected stack.

While various mechanical arrangements are known in the prior art to prevent delivery of more than one article at a time from a stack and to prevent jack-potting of the machine, the lvending industry has not been successful in developing a satisfactory electrical circuit which solves the problem of removing established credit at the proper time to insure delivery of only one article per established credit and which is characterized by minimum requirements of .power of operation and minimum interferences of elements, thereby, allowing a flexibility in construction and operation whichreduces the cost of operation and maintenance.

In known electrical circuit arrangements, there is generally provided a timer switch which is actuated by Ia cam driven by the vend motor. Upon establishement of proper credit, the vend motor is energized for one cycle and actuates the timer switch to remove the established credit. Although such an arrangement allows delivery of only one article per credit; if the vend motor should stall and thus fail to make a complete cycle, the timer switch is not returned to its normal position and the entire vending machine is put out of order, thus removing the machine as a source of revenue and requiring the attendance of maintenance personnel. This and other disadvantages of ,be hereinafter described known prior art arrangements are overcome by the present invention which provides a novel vending cycle lockout circuit which removes established credit 4at the proper time to insure delivery of only one article per established credit and which, in the event of a vend motor stall, allows op eration of the remaining selections.

Accordingly, it is a primary object of the present invention to provide a novel vending cycle lockout circuit.

Another object of the present invention is to vprovide a novel vending cycle lockout circuit which removes established credit at the proper time to insure delivery of only one article per established credit. l

Another object of the present invention is to provide a novel vending cycle lockout circuit which prevents jackpotting of the machine.

Another object of the present invention is to provide a novel vending cycle lockout circuit which prevents additional loss of credit on a stalled selection.

Another object of the present invention is to provide a novel vending cycle lockout circuit which will prevent placing the entire vending machine Vout of order in the event of a stalled selection and which will allow operation of the vending machine with any number of selections stalled so long as there is at least one selection that is not stalled.

The present invention is particularly adapted for use with a coin operated vending machine having a multiplicity of stacks or columns each of which may be provided with articles Ofvdiierent characteristics such as, for example, bottled beverages of dilerent flavors and having a multimotor arrangement for selectively dispensing articles one at a time according to the choice of the customer. To this end, dispensing from each column is controlled by a vend motor which is arranged to be energized during the latter portion of its Vend cycle through a timer switch. The timer switch is operably connected to prohibit energization of the corresponding selector relay if the timer switch is not in its normal position upon establishment of credit. Lockout means are provided for removing established credit at the proper time to insure delivery of only one bottle per established credit and allow operation of the remaining selections in the event of a stall -in the selected column. Further protective means are provided to prevent jack-potting in the event of malfunctioning of the lockout means by automatically discontinuing the power to the vend motors to prevent the completion of the cycle by the vend motor in the selected column.

Other objects andthe attendant advantages of the present invention wi-ll be apparent from the following description taken in connection with the accompanying drawing. Although one specific form of the invention is illustrated, it is to be expressly understood-that this drawing is for the purpose of illustration only and is not intended to represent the full scope of the invention which is defined by the appended `claims which particularly point out and distinctly claim the subject matter of the invention.

In the accompanying drawing, FIG. 1 is a schematic diagram of the novel vending cycle lockout circuit of the present invention.

Since the inventive yconcept ofthis invention resides in a new and improved lockout circuit and is independent of the cabinet in whichit is located or the means for delivery of the article that is dispensed, Vthe invention will with reference only `to the schematic of the control circuit, its method of operation and control.

Referring to FIG. l, there is illustrated schematically the novel vending cycle lockout circuit of the present invention for a coin operated vending machine which includes a plurality of stacks or columns of articles arranged to be selectively dispensed, one at a time, according to the choice of a customer.

in the operating circuit of one stack corresponding to a like component in other stacks is designated with a like numerical reference character which is followed by an alphabetical character designating the particular stack with which the component is associated.

- For example, each stack has associated therewith a vend motor 10, a timer switch 11, a pair of sold out switches 12 and 13, a sold out indicator light 14, a selector switch 15 and a selector relay 16. Those components designated with a numerical character followed by the character A are disposed for operation with respect to stack A to effect selection of an article therefrom according to the choice of a customer. In addition to the components associated with a particular stack, a number of common control components are provided including a coin operated vend switch 17, a vend relay 18, a coin reject electromagnet 19, a lockout motor 20, a cam operated lockout switch 21, a select indicator light 22, and a correct change indicator light 23.

Power to the lockout circuit is applied across a pair of supply conductors 24 and 25 which may be connected to a conventional alternating current supply source. When the machine is in normal working order, credit is estab- ,lished by energization of vend relay V18 upon insertion of a proper coin into a coin box (not shown) and actuation of the coin operated vend switch 17.

Vend switch 17 may be a conventional micro-switch I having a pair of fixed contacts 2-6 and 27 and a movable contact arm 28 adapted to be momentarily displaced from a first position to a second position and returned to its i'lrst position upon insertion of theproper coin in the vending machine coin box. Movable contact arm 28 is connected to supply conductor 24 and upon displacement of the arm to its second position completes the energizing circuit to vend relay 18 through contact 27 and conductor 29 connected to one end of the energizing coil 30 of vend relay 18. The other end of the energizing coil 30 is connected to supply conductor 25. vConductor 25 also forms a common power Afeed line for each of the vend motors A-10F sold out indicated lights 14A-141:, selector relays 16A-16F, reject electromagnet 19, select in- Vdicator light 22, correct change indicator light 23 and lockout motor 20.

Displacement of movable contact arm 28 also causes power to be momentarily removed from the starting circuit for the lockout motor which is electrically connected to the fixed contact 26 of switch 17. The circuit may be traced from lockout motor 20 through conductor 31, the lower set of contacts, as viewed in the drawing, of an energized selector relay 16, and conductor 32 connected to fixed contact 26.

Each selector relay 16 includes an energizing coil 33 and upper and lower set of contacts 34 and 35 respectively, as viewed in the drawing. Each set of contacts includes a movable contact arm 36 and 37 forming a common terminal between Ya pair of corresponding fixed contacts 38, 39 and 40, 41. The lower set of contacts 3S is arranged in the starting circuit fonthe lockout motor 20 as hereinbefore described, while the upper set of contacts 34 is arranged to provide a holding circuit for energizing coils 33.

To this end, the fixed Contact 40 of each selector relay is connected to conductor 31 by means of a conductor 42, and the movable contact 37 of each selector relay is connected in series with the fixed contact 41 of the selector relay corresponding to the next succeeding stack through conductors 43, with the exception of the last stack, wherein the movable contact 37 is connected to contact 26 of CIK the coin switch 17 through conductor 32. Each movable contact arm 36 of the upper set 34 is similarly connected to the xed contact 39 of the selector relay corresponding to the next succeeding stack through a conductor 44, with the movable contact arm 36 of the selector relay of the last stack being connected to the supply conductor 24 through conductor 45, the lower set of contacts, as viewed in the drawing, of vend relay 18 in its energized condition, conductor 46 and the normally closed contacts 26, 28 of coin operated vend switch 17.

Initial energization of a selector relay is made through the corresponding selector switch 15, sold out switch 12 and timer switch 11. The circuit may be traced from a coil 33 through the corresponding connecting conductor 47, timer switch 11, conductor 48, sold out switch 12, conductor 49, selector switch 15, conductor 68, contacts 36 and 39 of relay 16, conductor 45, the lower set of contacts in the energized position o f vend relay 18, conductor 46 and coin switch 17 to supply conductor 24. Energization of coil 33, causes the movable contacts 36 and 37 to be displaced from a rst position to a second position in contact with fixed contacts 38 and 40, respectively, to establish the holding circuit for the energizing coils 33 of relay 16 and to estabhsh the starting circuit for v lockout motor 20 through contacts 37, 40.

- energized upon actuation of coin operated vend switch 17,

causing movable contacts 52 and 53 to be displaced downwardly, as viewed, in the drawing. rThis removes from the timing switches 11 applied through conductors S8 and 59 leading from fixed contact 56, and applies power to conductor 45 through xed contact '57 when contact 28 returns to its original position.

The normally closed contact 52, 54 of vend relay 18 permit power to be applied to the coin reject electromagnet 19 when the coil of vend relay 18 is deenergized. The circuit may be traced from the electromagnet 19 through conductor 60, contacts 52, 54, conductor 61, the normally closed contacts of sold out switches 13, conductor 62, the normally open, held closed contacts of lockout switch 21 and conductor 63 to supply conductor 24. Energization of vend relay 18 opens the circuit to the coin reject electromagnet 19 through opening of contacts 52, 54.

Coin reject electromagnet 19 provides a conventional lcoin blocking function through operation of its armature (not shown). In its normally energized condition, the armature is actuated so as to permit a coin to be inserted for establishing credit; however, once the coin operated vend switch 17 is closed and vend relay 18 is energized, the coin reject electromagnet 19 is deenergized so as to operatively prevent the insertion of another coin. Correct change light 23 is connected across the energizing coil of the coin reject electromagnet 19 to provide a suitable indication, when lit, that the vending machine is ready to receive coins.

As hereinbefore described, the energizing circuit for the coin reject electromagnet is established through parallel connected sold out switches 13. Each sold out switch 13 is disposed at a corresponding stack for monitoring the supplyv and actuation in a conventional manner from a rst to a second position upon depletion of the supply of articles in that stack. When actuated to its second position switch 13 establishes the energizing circuit for a corresponding sold out indicator light 14, but the circuit through the lockout switch 21 is not broken until all switches 13A-13F are open. A second group of sold out switches 12 are provided in the energizing circuit of the vend motors to break the energizing circuit for a corresponding vend motor in a conventional manner upon depletion of the supply of articles in the stack. Sold out switches12 may be operated independently of sold out switches 13 or they may be ganged thereto for simultaneous operation.

Each vend motor has associated therewith a corresponding timer` switch 11 comprising a movable Contact 64 and a pair of fixed cont- acts 65 and 66. Each switch 11 is adapted vvto be actuated between a first position, in which the corresponding vend motor 10 is energized through conductor 67, 48, sold out switch 12, conduct-or 49 and an actuated selector switch 15, and a second position, after energization of the corresponding vend motor, to establish a by-pass energizing circuit for the vend motor through conductor 59. To this end, each timer switch 11 may be a microswitch having its movable contact-biased in downward position, as viewed in the drawing, and adapted to be released to its second position by a timer cam 76 driven from the shaft of a corresponding vend motor.

After energization of the appropriate vend motor, the corresponding timer cam 76 is driven to allow the corresponding' timer switch to snap to its second position whereupon contacts 64, 65 are closed. Initial energization of the vend motor is effected through actuation of the selector switch 15 which also establishes the energizing circuit for a corresponding selector relay 16 through contacts 64, 66. Each selector switch has one fixed contact 69 serially connected to the movable contact 70 of the selector switch in the next succeeding stack, the xed contact 69 of the last selector switch being connected in series with the select indicator light 22 through conductor 71 to provide a visual indication to the customer that the machine is ready for selection. Movable contact 70 which forms a common terminal for both positions of the selector switch is connected at Swich 70A to conductor 68. The other fixed contact 72 of each selector switch is connected to the movable contact of a corresponding sold out switch 12. n

Established credit is removed from the circuit upon actuation of the cam actuated lockout switch 21 which occurs when lockout motor is energized. In the normal position, lockout switch 21, which may be a conventional microswitch having a movable contact 73 and a pair of fixed contacts 74 and 75, provides power to the holding circuit of vend relay 18 through its contacts 52, 55, sold out switches 13 and conductor 62 connected to the line 24 through movable contact 73 and xed contact 74. Lockout motor 20 revolves a timing cam 77 in a conventional manner, which actuates switch 21 to its second position and establishes a secondary energizing circuit for motor 20 through contacts 73 and 75 and conductor 63 connected to supply line 24. Initial energization of lockout motor 20 is established as hereinbefore described through conductor 31 upon energization of one of a selector relay 16.

For convenience, a typical sequence-of-operation of the vending cycle lockout circuit is set forth as follows:

A coin is inserted in the coin box which actuates the coin operated vend switch 17. Actuation of coin operated vend switch 17 breaks the circuit at contacts 26, 28 and impulses the vend relay 18 through contacts 27, 28. Opening of contacts 26, 28 breaks the power source to the lockout motor starting circuit in the selector relays 16 and also breaks the power source to the vend relay credit contacts.

Upon energization of the vend relay 18, the energizing circuit for the coin reject electromagnet 19 is broken, causing it to rejectfurther coins. Simultaneously, a holding circuit is established through contacts 52, 55 to maintain the vend relay coil 30 energized when the vend switch 17 returns to normal. Closure of contacts 53, 57 enables the holding circuit for the selector relays.

The machine is now ready for a particular selection by the customer which is effected through operation of a selector switch. For example, if the selector switch 15A for the irst stack is actuated, a circuit is established for energization of vend motor 10A and also for energization of selector relay 16A through contacts 64, 66 of timer switch 11A. Selector relay 16A opens contacts 36, 39 'to prevent double vending, while lockout motor 20 is energized through contacts 37, 40. Energizing current to the vend motor 10A is lapplied through the timer switch contacts 64, 66 upon return of the movable contact arm of the selector switch to its original position.

Energization of the vend motor 10A drives the associated timing cam 76A to cause the timer switch 11A after a suitable interval to snap back to the second position establishing a by-pass energizing circuit for the Vend motor through conductor 59 and breaks the circuit to the selector relay energizing coil. This allows the vend motor 10A to continue to run and be carried through the latter part of its cycle through the timer switch after credit is removed by the lockout switch 21 which is actuated at some time interval after the timer switch has been released,

As hereinbefore described lockout switch 21 establishes the power circuit to the coin reject electromagnet 19 through its contacts 73, 74 and contacts 52, 54 of vend relay 1S, thus allowing the machine to accept money. When vend relay 18 is energized, the circuit to electromagnet 19 is broken and lockout switch 21 completes the holding circuit of the vend relay established through its contacts 52, 55.

Energization of lockout motor 20 through the selector relay 16A causes the lockout motor drive cam 77 to actuate lockout switch 21 to its second position so as to break the circuit to the holding circuit of the vend relay 18 thereby allowing the ven-d relay to return to its normal stand-by position and remove established credit. This also establishes the by-pass energizing circuit for vend motor 10A through conductors 58, 59 and contacts 64, 65 of timer switch 11A so that the vend motor 10A continues to run to complete its cycle and also establishes the secondary energizing circuit for the lockout motor through contacts 73, 75. The vend motor 10A continues to run directly through the timer switch 11A until the energizing circuit to the vend motor through contacts 64, 65 is broken when the timer Iswitch returns to its initial position which is effected by cam 76.

When vend rel-ay 18 is returned to its normal stand-by position, the energizing circuit to the holding circuit for selector relay 16A is broken and the circuit for coin reject electromagnet 19 is enabled; however, the coin reject electromagnet is not energized at this time, because the energizing circuit is open at the lockout switch 21.

The lockout motor continues to run on current directly through the lockout switch contact 73, 75 until the lockout switch 21 is returned to its initial position. Thus, upon release of contact 73 from its second position, lockout motor 20 is stopped and power is returned through the sold out switches 13 to the vend relay movable contact 52 an-d reject electromagnet 19 is energized. l

In the event of a stall of vend motor 10A, the timer switch 11A does not return to the initial stand-by position; however, the remaining selections are unaitected and will operate properly. Since there is no load other than the activation of the lockout switch 21 on the lockout motor 20, the lockout motor will always complete its cycle, while additional loss of credit on a selection assumed to be stalled is prohibited by breaking the circuit to the corresponding selector relay through the open contact of the corresponding timer switch.

The circuit will operate properly with any number of selection stalls, so long as there is at least one selection that is not stalled. In addition, to prevent the vend motors from completing their cycle in the event that the lockout motor fails to activate the lockout switch, the energizing circuit to the normally closed, held open contacts 64, 65v of the timer switch 11 is provided through contacts S3, 56 of the vend relay. This prevents the vend motors from completing their cycle in the event that the lockout motor fails to activate the lockout switch and provides an anti-jackpot feature.

While the lockout circuit of the present invention has been described with reference to a particular embodiment, changes in or modifications to the illustrated embodiment may now be suggested to those skilled in the art without departing from the present inventive concept. Reference therefore should be had to the appended claims to determine the full scope of the invention.

What is claimed is:

1. ln a coin operated vending machine having a plurality of stacks of articles adapted to be selectively dispensed and a plurality of vend motors, each of which corresponds to a separate stack and is arranged to be selectively energized to dispense articles from the corresponding stack, one at a time, according to the choice of a customer, the improvement comprising a vending cycle lockout circuit having a pair of line conductors adapted to be connected to a power source, circuit means including a vend relay arranged to be energized from the line conductors, and a coin operated vend switch, said coin operated vend switch being electrically connected in series with one of said line conductors and adapted to be momentarily actuated from a first to a second position upon insertion of a coin for energization of said vend relay, a lockout switch adapted to be actuated between a first and a second position, a lockout motor disposed for actuating said lockout switch between said first and said second position, said lockout switch in its first position adapted to be electrically connected in series with said vend relay for establishing a holding circuit therefor upon return of said coin switch to its first position, said lockout switch in its second position being electrically connected in series with said lockout motor and to establish a second energizing circuit for said lockout motor across said line conductors, said lockout motor having a first energizing circuit across said lline conductors including said vend switch in its first position and a plurality of individual energizing circuits connected across said line conductors for selectively energizing said vend motors, each of said energizing circuits including a manually operable selector switch having a first and a second position, a timer switch adapted to be actuated by a corresponding vend motor between a first and a second position, and a selector relay adapted to be initially energized through a corresponding timer switch in its first position and upon actuation of a corresponding selector switch to its second position, said timer switch in its second position being electrically connected in series with its corresponding vend motor to establish a by-pass energizing circuit for said vend motor when said selector switch is returned to its first position to allow said motor to complete its vending cycle and return said timer switch to its first position.

2. A coin operated vending machine as set Iforth in claim 1 further including cam means driven by said lockout motor for actuating said lockout switch between its first and second position.

3. A coin operated vending machine as set forth in claim 1 wherein said vend relay includes a set of contacts adapted to be displaced from a first to a second position upon energization of said vend relay and further including a coin reject electromagnet having an energizing coil, one end of said coil being connected to the other of said line conduct-ors, the other end of said coil being connected to said one of said line conductors through said set of contacts of said vend relay in the first position whereby -when said vend relay is energized said energizing coil is deenergized to prevent insertion of a coin for establishing credit to the vending machine.

4. A coin operated vending machine as set forth in claim 1 wherein said vend relay includes a set of contacts adapted to be displaced from a first to a second position upon energization of said vend relay, said set off contacts of said vend relay in its first position being serially connected between said vend switch in its first position and said timer switch in its second position to establish said by-pass energizing circuit for said vend motor when said vend relay is deenergized.

5. A coin operated vending machine as set forth in claim 1 wherein each selector relay includes a set of contacts adapted to be displaced from a first to a second position upon energization of the corresponding selector relay, said set of contacts of each selector relay having a common terminal in the first and the second position, said set of contacts of a selector relay in its second position being serially connected with said vend switch in its first position and each set of contacts in its first position being serially connected with each other such that energization of any selector relay establishes said first energizing circuit for said lockout motor.

`6. A coin operated vending machine as set forth in claim 5 wherein each selector relay includes a second set of contacts adapted to be displaced from a first to a second position upon energization of the corresponding selector relay, said second set of contacts of each selector relay having a terminal common in the first and the second position, each of said second set of contacts in their first position being serially connected to each other, said serially connecting second set of contacts being arranged for connection to one of said line conductors through said vend switch in its first position upon energization of said vend relay and to a vend motor through a corresponding selector switch upon manual actuation thereof from its first to its second position.

7. A coin operated vend switch as set forth in claim 6 wherein each selector switch includes a terminal common to said first and said second position, each selector switch being serially connected to each other when in the first position, said serially connected first positions being connected to said serially connected second sets of contacts of said selector relay whereby actuation of a selector switch from its first to its second position energizes a corresponding vend motor and a corresponding selector relay.

8. A coin operated vending machine as set forth in claim 7 further including a normally closed sold out switch corresponding to each stack for monitoring the presence of articles in the stack, each sold out switch being serially connected between a vend motor and the second position of a corresponding selector switch, each sold out switch adapted to be actuated to an open position to break the circuit for the corresponding vend motor only upon ldepletion of articles in that stack.

9. A coin operated vending machine as set forth in claim 7 further including a normally closed sold out switch for each stack for monitoring the presence of articles in that stack, each of said sold out switches being connected in parallel with each other and in series with said lockout switch in the first position and adapted to be actuated to an open position to open the circuit to said lockout switch lupon depletion of the supply of articles in all of the stacks.

References Cited UNITED STATES PATENTS 2,231,255 2/ 1941 Collins 194-9 2,835,409 5/1958 Rankin 221-67 2,884,110 4/1959 Krasney 194-10 2,895,582 7/1959 Turner 221-129 2,913,087 11/l913 Lamb 194-13 3,179,288 4/1965 Davy 221--129 3,191,737 6/1965 James et al. 194-10 3,232,400 2/ 1966 Hendrickson 221-129 WALTER SOBIN, Primary Examiner.

Claims (1)

1. IN A COIN OPERATED VENDING MACHINE HAVING A PLURALITY OF STACKS OF ARTICLES ADAPTED TO BE SELECTIVELY DISPENSED AND A PLURALITY OF VEND MOTORS, EACH OF WHICH CORRESPONDS TO A SEPARATE STACK AND IS ARRANGED TO BE SELECTIVELY ENERGIZED TO DISPENSE ARTICLES FROM THE CORRESPONDING STACK, ONE AT A TIME, ACCORDING TO THE CHOICE OF A CUSTOMER, THE IMPROVEMENT COMPRISING A VENDING CYCLE LOCKOUT CIRCUIT HAVING A PAIR OF LINE CONDUCTORS ADAPTED TO BE CONNECTED TO A POWER SOURCE, CIRCUIT MEANS INCLUDING A VEND RELAY ARRANGED TO BE ENERGIZED FROM THE LINE CONDUCTORS, AND A COIN OPERATED VEND SWITCH, SAID COIN OPERATED VEND SWITCH BEING ELECTRICALLY CONNECTED IN SERIES WITH ONE OF SAID LINE CONDUCTORS AND ADAPTED TO BE MOMENTARILY ACTUATED FROM A FIRST TO A SECOND POSITION UPON INSERTION OF A COIN FOR ENERGIZATION OF SAID VEND RELAY, A LOCKOUT SWITCH ADAPTED TO BE ACTUATED BETWEN A FIRST AND A SECOND POSITION, A LOCKOUT MOTOR DISPOSED FOR ACTUATING SAID LOCKOUT SWITCH BETWEEN SAID FIRST AND SAID SECOND POSITION, SAID LOCKOUT SWITCH IN ITS FIRST POSITION ADAPTED TO BE ELECTRICALLY CONNECTED IN SERIES WITH SAID VEND RELAY FOR ESTABLISHING A HOLDING CIRCUIT THEREFOR UPON RETURN OF SAID COIN SWITCH TO ITS FIRST POSITION, SAID LOCKOUT SWITCH IN ITS SECOND POSITION BEING ELECTRICALLY CONNECTED IN SERIES WITH SAID LOCKOUT MOTOR AND TO ESTABLISH A SECOND ENERGIZING CIRCUIT FOR SAID LOCKOUT MOTOR ACROSS SAID LINE CONDUCTORS, SAID LOCKOUT MOTOR HAVING A FIRST ENERGIZING CIRCUIT ACROSS SAID LINE CONDUCTORS INCLUDING SAID VEND SWITCH IN ITS FIRST POSITION AND A PLURALITY OF INDIVIDUAL ENERGIZING CIRCUITS CONNECTED ACROSS SAID LINE CONDUCTORS FOR SELECTIVELY ENERGIZING SAID VEND MOTORS, EACH OF SAID ENERGIZING CIRCUITS INCLUDING A MANUALLY OPERABLE SELECTOR SWITCH HAVING A FIRST AND A SECOND POSITION, A TIMER SWITCH ADAPTED TO BE ACTUATED BY A CORRESPONDING VEND MOTOR BETWEEN A FIRST AND A SECOND POSITION, AND A SELECTOR RELAY ADAPTED TO BE INITIALLY ENERGIZED THROUGH A CORRESPONDING TIMER SWITCH IN TIS FIRST POSITION AND UPON ACTUATION OF A CORRESPONDING SELECTOR SWITCH TO ITS SECOND POSITION, SAID TIMER SWITCH IN ITS SECOND POSITION BEING ELECTRICALLY CONNECTED IN SERIES WITH ITS CORRESPONDING VEND MOTOR TO ESTABLISH A BY-PASS ENERGIZING CIRCUIT FOR SAID VEND MOTOR WHEN SAID SELECTOR SWITCH IS RETURNED TO ITS FIRST POSITION TO ALLOW SAID MOTOR TO COMPLETE ITS VENDING CYCLE AND RETURN SAID TIMER SWITCH TO ITS FIRST POSITION.

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