US1148438A

US1148438A - Electric coin-controlled lock.

Info

Publication number: US1148438A
Application number: US75594813A
Authority: US
Inventors: George G F Boswell
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-03-21
Filing date: 1913-03-21
Publication date: 1915-07-27
Anticipated expiration: 1932-07-27

Description

G. G. F. BOSWELL.

ELECTRIC com CONTROLLED LOCK.

APPLICATION FILED MAR. 2|. I913.

Patented July 27, 191.5.

3 SHEETS-SHEET l- Figl WITNESSES: o INVENTOR George'G. F. Boswell WM J17 a 7 dawn/Cy,

G. G. F. BOSWELL.

ELECTRIC COIN CONTROLLED LOCK. APPLICATION FILED MAR. 2!. 1913.

5 1 mm H m ZW mm m d5 m3 n w 0w P Fig.5.

'INI/ENTOR WITNESSES.

COLUMBIA PLANOGRAPH C0" WASHINGTON. I) C G. G. F. BOSWELL.

ELECTRIC COIN CONTROLLED LOCK.

APPLICATION men MAR. 21. 1913.

Patented July 27, 1915.

3 SHEETS-SHEET 3- I George 'G-EBoan/e. I

WTTED @TATF@ PATENT UFFT@E.

GEORGE G. F. BOSWELL, OF INDIANAPOLIS, INDIANA.

ELECTRIC COIN-CONTROLLED LOCK.

Application filed March 21, 1913.

T 0 all whom it may concern:

Be it known that I, GEORGE G. F. Bos- WELL, a citizen of the United States, and a resident of Indianapolis, county of Marion, and State of Indiana, have invented a cer tain new and useful Electric Coin-Controlled Lock; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to provide an improved coin controlled lock employing electricity for operating the lock, the parts being arranged so that the coin will close the circuit.

The chief feature of the invention consists in providing, as stated above, means actuated by a current for withdrawing the bolt of the look when the circuit is closed by the coin.

Along with the foregoing a further feature of the invention is the provision of means associated with the coin chute for moving the coin into a circuit closing position and for discharging the coin.

The nature of the invention will be understood from the accompanying drawings and the following description and claims.

In the drawings, Figure 1 is an elevation of a portion of the front edge of a door with the lock secured thereon. Fig. 2 is an elevation of one side of a portion of the door frame, door and lock. Fig. 3 is an elevation of the look as viewed in Fig. 2 but with the casing removed and the door omitted and parts of the lock in idle position. Fig. 4 is an elevation of the left-hand side of Fig. 3 with the coin holder in its inoperative position, and the coin leaving the holder. Fig. 5 is a section on the line 5-5 of Fig. 3 with the coin therein and in circuit closing position. Fig. 6 is a cross section on the line 66 of Fig. 3. Fig. 7 is a plan view of what is shown in the upper part of Fig. 3 with the wires removed and showing the shutter closing the coin chute. Fig. 8 is a cross section on the line 88 of Fig. 3. Fig. 9 is the same as Fig. 3 with some parts, in cluding the coin chute, omitted. Fig. 10 is a rear elevation of the insulated plate on which the lock is mounted, parts extending through and mounted on the rear side thereof.

The drawings employed herein to illustrate the general nature of the invention as Specification of Letters Patent.

Patented July 27, 1915.

Serial No. 755,948.

well as the details thereof, present a door 10 with the lock casing 11 secured thereto as usual and with an inner knob 12 and an outer knob 13. The outer knob 13 is on a stub shaft 14 which is idle, and the details of which are not shown. The inner knob shaft has a sleeve 15, which is secured on the squared end of the knob shaft 16 to be seen in Fig. 5. The inner knob and its shaft are to release the look from the inside. The lock is released by electrical means, and, therefore, the outer knob is used only to pull the door open.

Upon the outer surface of thedoor a plate 17 of insulating material is secured by screws 18. The locking bolt has an outwardly extending beveled end 20secured to a vertical plate 21, and also two parallel bars 22, which extend inwardly from the plate 21, as shown in Figs. 3, 6 and 9, and at their rear ends have an integral cross plate 23. These parts, 20, 21, 22 and 23 are shown integral and may be considered the bolt. The bolt is thrown outward or locked bythe spring 245, see Fig. 6, which is a spiral spring surrounding a rod 25, which projects loosely through the rear plate 23 of the bolt construction, and its other end is secured in an arm 26 extending from a plate 27 which is secured to the insulated base 17. The outward movement of the bolt is stopped by a flange28 extending from said plate 27 and engaging the plate 21 of the bolt construction, as shown in Fig. 6.

For withdrawing the bolt when one is on the inner side of the door, the inner knob 12 is turned and that causes the knob shaft 16 to turn the oppositely extending arms 29, as shown in Fig. 9, from a position crosswise of the bolt construction, as shown in Fig. 5, to a position almost longitudinal thereof, as shown in Fig. 9, and when turned to a position shown in Fig. 9, it bears against the plate 23 on the inner end of the bolt construction and forces the bolt inward. The arm 29 is double in order to enable the bolt to be withdrawn when the inner knob is turned in either direction.

Coming now to the electrical apparatus for withdrawing the bolt of the look when a person is on the outside of the door, there are a pair of electromagnets 30 secured with in casings 31, which project through openings 32 in the insulated base plate, as shown in Fig. 10. These magnets are energized by current coming in through wires 33 and connected to some source of electricity and leads from said electromagnets to a binding post 39 and terminal 40, There is a terminal 41 opposite the terminal 40 connected to the binding post 42 and from that binding post a wire 43 leads to the binding post 36.

The

terminals

40 and 41, as shown in Figs.

3 and 4, are metalplates secured at one end i to the binding post and bent or curved somewhat toward each other so as to hold a coin 44,v which may lodge between them, and thus the coin closes the circuit and enables the current to energize the magnets.

The energization of the magnets causes the withdrawal of the cores 45 thereof, whichextend inward from the plate 21, and thus the bolt construction is withdrawn from the looking to the unlocking position. The coin is inserted in the coin chute 47, see Figs. 3 and 5, which is secured at its upper end to a plate 48 which has a flange 49 fas tened to the insulated base plate by a bolt 50. The lower end of the chute is secured to asimilar plate 51 having a flange 52 secured by a bolt 53. The chute 47 consists of a main back plate with the sides folded over so that there is a slot 54, which has, however, no particular function, and upon the outer'surface of the lower end of the chute a spring plate 55 is secured, which projects below the chute with its lower end bent inward to bear upon a coin holder 56.

g This coin holder is made of insulating material and at its upper end is hinged at 57 to a bent rod58 secured toand extending from the coin chute. The spring 55 tends to. force the coin holder rearward to the I position shownin Fig. 5, and when the coin isinserted inthe chute the holder 56 will guide it in between the

terminals

40 and 41, and they prevent the coin from escaping.

V ,In order todischarge the coin it is neces sary to move theholder 56 from the position shown in Fig. 5, to the position shown inFig.

4, so that the. coin will disengage the

terminal plates

40 and 41, and then drop by I inwhich the

binding posts

39 and 42 are mounted, YA plate 65 of insulating materialjextend rea ward from t e b o k .4,

and a plate 66 extends from the other end of the block 64, and the block 64 is secured to the base plate 17. The frame 61 is forced outward by the spring 67, which bears between the rear end plate 63 of the frame, and a bracket 68, which extends from the door. The spring 67 surrounds a rod 69, which extends from the bracket 68 loosely through the plate 63. The frame 61 is held inward by the plate 70, which is secured to the door frame 71, see Fig. 2. Said plate 70 has a socket in it to receive the end 20 of the bolt, as indicated by dotted lines in Fig. 2. Therefore, when the door is closed, as shown in Fig. 2, the frame 61 is forced inward to the position shown in Figs. 5 and 9, and thus the plate 60 releases the coin holder 56, so that the spring 55 forces the coin holder in between the

terminals

40 and 41. Then the lock is in condition to receive the coin and be operated through its instrumentality. As soon as the lock is operated, the door is opened and the spring 67 forces the frame 61 outward, which causes the cam plate 60 to move the coin holder 56 away from the

terminals

40 and 41, and then the coin drops into a recess not shown. The person then goes through the door and closes it, and when it is closed, the sliding frame 61 and the bolt resume their normal positions, as shown in Fig. 2.

After the person has gone through the door and is inside, it is necessary that the coin chute be closed, so that other persons on the outside cannot, by use of the coin, operate the lock. Therefore, when the bolt is withdrawn by the current passing through the coin, as heretofore explained, the electrical mechanism at the same time moves a shutter on the upper side of the lock from the position shown in Fig. 5 to the position shown in Figs. 4 and 7. The means for operating the shutter is as follows: The shutter is secured on a shaft 76 mounted at its ends in bearing

plates

77 and 78 extending from the base plate 17. Said shafthas arms 79, which are pivoted to cores 80 projecting into ends of the electromagnets opposite the ends in to which the other cores 45 project. Therefore, when the current energizes the magnet, the solenoids 80 will cause the shutter 75 to move to a closing position. Therefore, as long as a person is inside of the door, no

person on the outside can operate the lock.

When a person on the inside desires to come out, he operates the inner knob 12 in either direction, and that not only withdraws the bolt of the look, but also returns the shutter to its open position, as shown in Figs. 3 and 5. This is effected by an arm 81 extending from the shaft 76, see Fig. 6, and a loop 82 which extends from said arm through the side plates of the frame 83, which slides on the plates 22 ofthe bolt construction loosely about and under a guide formed of a bolt 84 from the base plate 17 and a thumb nut 85 thereon, and said frame,

83 has a cross plate 86, similar to the plate 23, and in position to be engaged by the double arms 29. Therefore, when the knob shaft 16 is operated, the double arms 29 will simultaneously push against the plate 23 to withdraw the bolt of the lock, and push against the plate 86 and through the loop 82 and shaft 76 and return the shutter to its open position. lVhen the person thus goes out through the door and closes the door, the lock is again in its normal posi tion, as shown in Fig. 2.

I claim as my invention:

1. A coin controlled lock including a bolt, electrical means for controlling the operation of said bolt, a circuit for energizing said electrical means with terminals in posi tion to be closed by a coin, a coin chute for receiving a coin and having a movable portion for holding the coin between the termimils, and means for moving said coin holding portion of the chute so as to release the coin.

2. A coin controlled lock including a bolt, electrical means for controlling the operation of said bolt, a circuit for energizing said electrical means with terminals in position to be closed by a coin, a coin chute for receiving a coin and having a movable portion for holding the coin between the terminals, and means operated by closing the door on which the lock is secured for moving the coin holding portion of the chute so as to discharge the coin.

3. A coin controlled lock including a bolt, electrical means for controlling the opera tion of said bolt, a circuit for energizing said electrical means with terminals in position to be closed by a coin, a coin chute for receiving a coin and having a movable portion for holding the coin between the terminals, and a slidable frame on said lock adapted to be actuated by the door casing when the door is closed for moving said coin holding portion of the coin chute into position to discharge the coin.

4c- A coin controlled lock including a bolt, electrical means for controlling the operation of said bolt, a circuit for energizing said electrical means with terminals in posi tion to be closed by a coin, a coin chute for receiving a coin and having a movable portion for holding the coin between the terminals, a sliding frame with a beveled outer end and adapted when pushed inward to move the coin holding portion of said chute into position to discharge the coin, and a plate adapted to be placed on the door casing for engaging the beveled end of said frame when the door is closed for forcing the frame inward.

5. A coin controlled lock including a bolt,

electrical. means for controlling the operation of the bolt, a circuit for energizing electrical means for controlling the operation of the bolt, a circuit for energizing said electrical means having two terminals con sisting of oppositely located plates inclined toward each other so that a coin may lodge between them and close the circuit, a coin chute for receiving the coin and having a movable portion for holding the coin while it is between said terminals, and means operated by the closing of the door for moving the coin holding portion of the chute so as to disengage the coin from said terminals and permit it to escape.

7. A coin controlled lock including a bolt, electrical means for controlling the operation of the bolt, a circuit for energizing said electrical means having two terminals consisting of oppositely located plates inclined toward each other so that a coin may lodge between them and close the circuit, a coin chute including a fixed portion for receiving the coin and a movable portion at the lower end of the fixed portion for holding the coin between said terminals, a spring for forcing said coin holding portion of the chute to hold the coin between the terminals, and means for moving aid coin holding portion of the chute outward to permit the coin to escape.

8. A coin controlled lock including a bolt, electrical means for controlling the operation of the bolt, a circuit for energizing said electrical means having two terminals consisting of oppositely located plates inclined toward each other so that a coin may lodge between them and close the circuit, a coin chute including a fixed portion for receiving the coin and a movable portion at the lower end of the fixed portion for holding the coin between said terminals, a spring for forcing said coin holding portion of the chute to hold the coin between the terminals, and means operated by the closing of the door for moving said coin holding portion of the chute outward to permit the coin to escape.

9. A coin controlled lock including a bolt, electrical means for controlling the operation of the bolt, a circuit for energizing said electrical means having two terminals consisting of oppositely located plates inclined toward each other so that a coin may lodge between them and close the circuit, a coin v chute. including a fixed portion for receiving the coin and a movable portion at the lower end of the fixed portion for holding the coin between said terminals, a spring for forcing said coin holding portion of the chute to hold the coin between the terminals, and a sliding frame provided with a cam plate in position to force said coin holding portion of the chute outward to permit the escape ofthe coin when said frame is moved outward, a spring for forcing said frame outward, and means on the door casing for forcing said frame'inward when the door is closed.

10. A coin controlled lock including a bolt, electrical means for controlling the operation of the bolt, a circuit for energizing said electrical means having two terminals consisting of oppositely located plates inclined toward each other so that a coin may lodge between them and close the circuit, a coin chute including a fixed portion for receiving the coin and a movable portion at the lower end of the fixed portion for holding the coin between said terminals, a spring for forcing said coin holding portion of the chute to hold the coin between the terminals, a block formed of insulating material in which said terminals are mounted, a skeleton frame surrounding and guidable by said insulating block, a cam plate on said frame in position to move the coin holding portion of the coin-chute outward to permit the escape of the coin when said frame is moved outward, a spring for forcing said frame outward, and a plate on the door casusage ing for forcing said frame inward when the door is closed.

11. A coin controlled lock including a spring-actuated bolt with laterally extending plates, a pair of electromagnets, a core extending from said, plates into one end of each magnet, a circuit for said magnets having terminals adapted to be bridged by a coin, a coin chute for conveying the coin to said terminals, a shutter for closing said chute, a rock shaft on which said shutter is mounted and having arms thereon, and cores extending from said arms into the other ends of said magnets.

12. A coin controlled lock including a bolt, electrical means for controlling the operation of the bolt, a circuit for energizing said electricaltmeans having two terminals consisting of oppositely located plates inclined toward each other so that a coin may lodge between. them and close the circuit, a coin chute including a fixed portion for receiving the coin and a movable portion at the lower end of the fixed portion for holding the coin between said terminals, means for forcing said coin-holding portion of the chue to hold the coin between the terminals, and means for moving said coin holding portion of the chute outward to permit the coin to. escape.

In witness whereof, I have hereunto affixed my signature in the presence of the witnesses herein named.

GEORGE G. F. BOSWELL. Witnesses:

G. H. BOINK, J. H. WELLS.

{topics of this patent may be glitained for five gents each, by addressing the Commissioner of Patents.

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