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Publication numberUS2032517 A
Publication typeGrant
Publication dateMar 3, 1936
Filing dateJan 31, 1935
Priority dateJan 31, 1935
Publication numberUS 2032517 A, US 2032517A, US-A-2032517, US2032517 A, US2032517A
InventorsWheeler Clyde H
Original AssigneeBell Telephone Labor Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Coin collecting device
US 2032517 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 3, 1936.


lNl ENTOR C. H. WHEELER A TTORNEV Patented Mar. 3, 1936 UNITED STATES PATENT OFFICE COIN COLLECTING DEVICE Application January 31,1935, Serial.No. 4,209

3 Claims.

invention relatesv to. coin collecting apparatus, particularly such apparatus 1 for. use at a telephone pay station.

As applied to telephone pay stations, thepres- 5 ent invention is particularly adapted: forthat type of coin collecting apparatus; wherein. the calling party tentatively deposits. a coin .or; coins as indicated by the central oflice operator; who subsequently makes the proper dispositionthereof, that is;either"refunds or collects the: coins,

depending upon whether or not the desired con.- nection isobtained, In such apparatus, it is usual to have the coins temporarilyr deposited upon a trap located within the. main coin. chute and normally supported by a deflector vane adapted to be'actuatedby. a magnet to allow'the trap to discharge the coin either into a collect chute'or a refund chute, dependingiupon the. direction ofmovement. of the supporting vane. It

is.also customary; as. shownin O..F. Forsberg Patent 1,043,219, issued November 5; 19.12., to provide the pivoted coin trap. with a slight over:- balancing: counterweight to. restore the: trap. to its normal position after the coinshavexbeendischarged from the trap.

An object of this invention is toaprovide an improved apparatus for temporarily retaining the coins within a coin chute whereby they may be later collected or refunded;

Asapplied to the type of coincollector dis:-

cl'os'ed in the. above-mentioned Forsberg: patent, this invention provides a pivoted coin trap having a counterweightwhichjiseffective; only for certain positions of the trap. and ineffective in :15 other positions. Preferably, the counterweight is effective only after the coin trap hasfallen a substantial: distance from its normal horizontal position, thus allowing the. trap, when the. supporting vane is removed, to drop through a con- K 0 siderable angle due to its own weight before the counterweight becomes effective. Of course, 'if'a. coin rests on the trap the action is more positive. In the preferred arrangement, the counterweight is hinged independently of the 5 trap andthe trap. is permitted to fall freely through a definite angle before alug onthe trap engages the counterweight. Preferably, the counterweight: slightly overbalances the trap so that as soon: as; the coins are discharged from 5 the trap, the. counterweight initiates the upward movement of the trap, which upward movement will .be. completed when the coin relay allows the deflecting vane to return to itsv normal vertical I position .under the trap.

5 Astdescribed in the. above-mentioned Forsberg patent; it is. customary in a telephone coin. collector'to have the deposited coin strike a trigger before reaching the coin trap, the actuation of the trigger: serving to close a switch to place the coin relay of the telephone collector under the control of a central ofiice operator and at the same time causing a signal to be given at the central oflice to indicate that a coin has been deposited. When current is applied by the central office operator to energize the coin relay, the relay in operating removes the supporting vane for the coin trap and'at the. same time restores the coin trigger to normal, thereby removing the coin relay from the control of the. central oflice operator. The length of. time that the energizing circuit for thecoin relay is closed is, of course, under the control of the central ofiice. operator. If, as occasionally happens, the coin relay is deenergized after an energization period long enough to restore the trigger to normal, but

too short to permit the coin trap to discharge its coins, the trap with its coins still on it will be returned toits normal horizontal position and the telephonecollector circuit will be conditioned for another call with the coins deposited for the 1 first call still lying on'the coin trap. In such an instance, the central ofiice operator will have no means of knowing that the energization of the coin relay failed to clear the coin trap of the deposited coin. Hence, in order that there may be substantially no range of brief circuit closure for the coin relay during which this condition can occur, it is desirable that the coin trap discharge its coins and return to normal in a length of time not substantially greater than the length of time required for the coin trigger to be restored to normal. Preferably, the cointrap of this invention is so constructed that the time of operation of the coin trap is of the same order as that of the coin trigger.

The above-described arrangement is also particularly advantageous in insuring the prompt discharge from the trap of a lightweight coin which might lie so near the pivoting axis of the trap as to fail to be discharged when the. deflecting vane is removed in those; collectors where the trap is counterbalanced for all positions. As pointed out above, the coin trap of this invention is not dependent upon the weight of a coin for initiating its downward movement but will fall freely due to its own weight for a substantial distance, thereby acquiring considerable momentum before-engaging the counterweight.

Other objects. and advantages of this invention will be apparent from the following description and the .accompanying drawing, in which- Fig. 1 shows, in partial section, part of a prepayment telephone;

Fig. 2 shows the details of the trap of the invention;

Fig. 3 shows a coin on the trap with the supporting vane in normal supporting position;

Fig. 4 shows the position of the trap at the instant the counterweight is brought into action;

Fig. 5 shows the trap at its maximum point of downward movement with the coin being discharged therefrom; and

Fig. 6 shows the trap at that point in its return movement when the counterweight ceases to function.

This invention applies to a detail of the general prepayment telephone disclosed in O. F. Forsberg Patent 1,043,219, November 5, 1912, noted previously, and reference may be had thereto for a complete description of the apparatus, only a small portion of which is involved in this invention.

As described in the Forsberg patent, a coin having been deposited on the coin receiving plate (not shown), traverses certain passages (also not shown) and is discharged into the coin- ;directing device I, which is substantially funnel-shaped at its upper end. Through the narrow portion of the coin-directing device I there projects a trigger IT. This trigger, when moved downwardly, is retained in its tipped position clear of the chute and by its movement closes a circuit to notify the operator at the central office that a call is to be made. The retaining device and'switch are not shown in detail since they do not enter into the present invention.

For their operation, reference may be had to the aforementioned Forsberg patent.

Below the narrow portion of the coin-directing .device I there is a coin chute I andtrap 2 which is hinged to rod 3 by extensions of the outer wall of chute I. A counterweight 4 is also supported by an extension piece 5 hinged about rod 3. A second extension 6 from counterweight 4 is bent in a manner to contact the side of the chute to thereby act as a stop for the counterweight.

The trap 2 is supported in its horizontal position by a vane or coin deflector 8 pivoted at 9, 9. This vane is provided with a projecting piece III which extends through an arcuate slot in the side of the chute and is engaged by lever II fastened to the armature of a polarized relay indicated generally at I2. The armature of the relay moves in a direction corresponding to the direction of the actuating current to move vane 8 in one direction or the other depending upon whether the coin is to be returned or retained. A roller I3 is attached to one corner of the vane to facilitate its return and the replacement and sup-port of trap 2.

The operation of the relay armature to cause the proper disposition of the coins also releases trigger I1 and switch so that the entire mechanism is restored to normal and is no longer under the'control of the central office operator until another coin is deposited.

Assume that a coin has been deposited, signal given, connections made, and the call completed. At this time, the coin I8 will rest upon the coin trap 2 as shown in Fig. 3 with the coin deflector vane supporting the trap. The operator at the central office then operates a key or push-button to close a circuit thereby energizing the coin relay I2 in a direction to collect the coin or coins,

The relay, upon operating, causes lever II to move vane 8 from its supporting position to some position such as that shown in Fig. 4. The coin trap, being unsupported, falls freely to the approximate position shown in Fig. 4. At this point in its travel, lug or extension I5 of the trap contacts with the counterweight. It will be noted that the trap has moved through an angle of approximately degrees before the counterweight is brought into action. This angle, however, is not critical and may vary somewhat either way from the value noted.

Not having to move the counterweight 4 from rest .and against gravity, the initial trap movement is more rapid than if this weight were fixed to the trap. Also, when lug I5 of the trap comes into contactwith the counterweight, there is a slight jar or vibration given to the trap which aids in loosening the coin from the trap if for any reason it would tend to adhere thereto or if it were situated near the hinge where movement of the coin from the trap might be retarded.

The momentum of the coin and trap overcomes the weight of counterweight 4 and the movement of the trap carries it to some such position as that shown in Fig. 5. At approximately this position, the coin is discharged from the trap as indicated. Since the coin is discharged the counterweight becomes effective to move the trap in the opposite direction and such action continues until the trap has reached approximately the position shown in Fig. 6.

At this point in the counterweight travel, ex-

tension 6 thereof comes into contactwith the side of the chute and the counterweight is restrained from further movement. At substantially this instant, the armature of relay I2 is moving lever I I, and thereby vane 8, to its normal position. Vane 8 in its movement forces trap 2 The construction described herein, that is, with I the counterweight not permanently attached to 'the trap, permits the speed of the trap. movement to be so increased that the coin or coins are discharged therefrom before vane 8 on its return movement forces the trap back to its normal position.

It is desired to point out that whereas the above description has been directed to the use of a counterweight for starting the trap return, other i i gaged by said trap only after said trap has fallen through a definite angle from its normal supported position.

2. A coin collector comprising a coin chute, a pivoted coin trap in said chute, means for supporting said trap, a magnet for removing said supporting means, said trap being unbalanced about its pivot to permit said trap to fall freely a substantial distance due to its own weight when said supporting means is removed, and a counterweight for said trap pivoted independently of said trap and engaged by said trap only after said trap has fallen through a definite angle from its normal supported position, said counterweight when engaged by said trap slightly over-balancing said trap tending to cause an upward movement of said trap.

3. A coin collector comprising a coin chute, a

pivoted trap door in said chute for temporarily retaining coins deposited in said chute, a coin deflecting vane pivoted at its lower end and normally supporting said door, means for removing said vane as a support for said door and subsequently restoring said vane to its supporting position, said door being unbalanced whereby said door due to its own weight falls freely for a certain distance when said vane is removed, and a counterweight for said door pivoted independently of said door and engaged by said door after said door has dropped said certain distance, said counterweight substantially balancing said door for movement of said door beyond said certain distance, said door being free of said counterweight in the latter part of its upward move- 3 ment in regaining its normal position under actuation by said vane.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3842210 *Feb 2, 1971Oct 15, 1974Telephone CorpOptional prepay coin operated telephone system
US5901828 *Oct 7, 1997May 11, 1999Asia Euro IndustriesDevice for receiving or rejecting coins or circular tokens
U.S. Classification232/57.5, 194/346
International ClassificationH04M17/00, H04M17/02
Cooperative ClassificationH04M17/026
European ClassificationH04M17/02C