US1489883A - Coin-controlled lock - Google Patents

Description

April s, 1924. n K

E. L. EDWARDS ET AL COIN CONTROLLED LOCK .Filed June' 22 1921 2 Sheets-Sheet l which fragments. are shown;

Patented Apr. 8, 1924.

UNITED STATES PATENTOFFICE.

EDWIN L. EDWARDS, FRANK A. FAR-WELL, AND FRANK OfWILEY, 0F INDIANAPOLIS, INDIANA, ASSIG-NORS 'IO UNIVERSAL SERVICE CORPORATION, OF INDIANAPOLIS, INDIANA, A CORPORATION OF INDIANA.

COIN-GONTROLLED LOCK.

Application led June 22,

To all whom t may concern.'

Be it known that we, EDWIN L. EDWARDS,-

FRANK A. F ARWELL, and FRANK O. WILEY, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Coin-Controlled Lock, of which the following is a specification, reference being had to the accompanying drawings, and to the figures of reference marked thereon.

This invention relates to a lock of the type that is used on doors of toilet rooms and on doors of rooms or apartments to which entrance may be gained by the deposit of a fee, the invention having reference more particularly to a lock that is designed to be operated to unlock a door by means of a coin inserted in the lock.

An object of the invention is to provide a coin-controlled lock which shall be so constructed as to not be costly, but shall be simple and reliable and not be liable to become deranged nor troublesome in use.

Another object is to provide an improved coin-controlled lock and coin box combined which shall be of such construction'as to permit compactness of mechanism and provide for large coin capacity, and which shall be of such structure as to be durable and economical in use.

With the above-mentioned and other objects in view, the invention consists in a coin-controlled lock having operative mechanism of improved structure permitting coins to pass progressively by the force of gravity through the lock-controlled means and into the coin box; and, the invention consists also further in the novel'parts andk in the combinations and arrangements of parts as hereinafter particularly described and further pointed out'in t-he accompanying claims.

Referring to the drawings, Figure 1 is a front elevation of the improved loc-kin connection with a door and door frame of Fig.,2 is a fragmentary edge view ofthe door and the lock applied thereto; Fig. 3 is a top plan of the improved lock and a keeper with which the lock (zo-operates, on an enlarged scale, as applied to a door and door frame of which a fragmentary horizontal section is shown; Fig. 4 is a front elevation of the improved lock minus its covers, on an en- V1921. Serial No. 479,495.

larged scale; Fig. is a fragmentaryy vertical section of the lock approximately on the line V-V in Fig. 3; Fig. 6 is a view similar to Fig. 5, but with operative parts in different positions; Fig. 7 is. a view similar to Figs. 5 and 6 except that the operative parts are shown in different positions; Fig. 8 `is a section approximately on the line VIII- VIII vin Fig. .6 on an enlarged scale, as the lock is applied to a door; Fig. 9 is a horizontal section approximately on the line IX-IX in Fig 4; and, Fig. 10 is a horizontal section approximately on the line X-X in Fig. 4.

Similar reference characters in the different figures of the drawings indicate oorresponding or like elements or features of construction herein referred to in detail.

In the drawings the numeral 1 indicates a door frame andQ indicates a door provided with the improved lock which as pref-- erably constructed comprises a back plate 8, side walls 4 and 5, a top 6 'having a projecting guide portion 7 on its inner side in which is a Vcoin slot 8, a bottom 9 connected to the side walls and the back plate, and a partition 10, constituting the principal portion of a casing having anv upper chamber for the lock mechanism and a lower chamber to hold-the spent' coins. The partition 10 preferably has a guide'rib 11.-pro,`

jecting beyond the plane of they front of the side walls, and the partitionhas ya slot 12 therein to permit the coins to .pass into the coin box, the slot preferablybeing broader at its top than at its lower end. lThe, back plate 3 has a relatively vthick portion 13 adjacent to the side wall 4 and a thick portion 14 adjacent to the side wall 5. The back plate has screw holes 15 and 16 in the thicker portions respectively to receive screws whereby to secure the casing to the door, thelower portion of theback plate having also screw holes 17 and 18 to receive securing screws.' A guide plate 19Jis secured to the front of the portion 13 of the back plate and extends down to the partition 10 and also over nearly to the thicker portions 14Y of the back plate.

The upper chamber of the casing is provided with a front plate 20, the lower end of the plate preferablybeing arranged in connection with a stop shoulder 21correspending to the front of the partition 10.

The inner side of the front plate preferably has ribs 22 and '23 thereon to stiifen the plate and also guide it to position between the side walls of the casing, and each rib has a projection 24 on its end that is normally adjacent to the top 6, the projections normally extending behind suitably supported keepers 25 and 26 whereby to secretly lock the upper portion of the front plate securely in place. The lower" portion of the front plate is provided on its inner side with a lock 27 from which a lock bolt 28 is projected into a slot 29 with which the partition 10 is provided.v rlhe lock has a guide barrel 30 thereon in which a key cylinder 31 is arranged. The coin box is provided with a front plate 32 which also has ribs 33 on its inner side that are provided each with a projection 34 normally arranged adjacent to the bottoni 9, the projections engaging keepers 35 and 36 suitably supported adjacent to the bottom. The inner side of the upper portion of the front plate 32 is provided with a lock 37 from whichy a lock bolt 38 is projected into the slot 29, and the lock is provided with a guide barrel 39 in which a key cylinder 40'is arranged.

A lock bolt is provided which has a body portion 41 and is horizontally arranged upon or above the partition 10, the back plate 3 being recessed to receive the bolt. The forward portion of the lock bolt has a relatively thick portion 42 and the rear-4 ward or opposite end has a relatively thick abutment portion 43 onthe front of the body portion, and the bolt hasl a thicker head portion 44 which provides a shoulder 45 at the rearward end thereof, the head portion beingmovably guided in the side wall 4 of the casing and normally projecting therefrom, and it has a beveled or inclined back 46 to engage the front of a keeper. The lock bolt is provided with a stud 47 which projects from the front of V the abutment portion 43. A plate spring 48 is arranged adjacent to the inner side of the wall 4 and is 4connected to a fixed stud 49 from which it extends to and beyond a tension stud 50 to the shoulder 45 and so `that it automatically projects the lock bolt into a keeper 51 secured to the outer side of the rdoor frame 1. Preferably the wall 4 has a guard 52 thereon that partially covers the front and upper and lower portions of the keeper to prevent the insertion of any instrument between "the lock casing and the keeper in an effort to retract the lock bolt.

The upper portion of the back plate 3 has a pivot 53 thereon to which a controlling bar 54 is connected, the bar extending downward and adjacent to the front of the body portion 41 of the lock bolt, and the bar has a vertical slot 55 therein. The back plate 3 is provided also with another pivot 56 at a suitable distance from the bar 54, the pivot 56 being lower than the pivot 53, and it supports a controlling lever between its ends so as to provide an upper arm 57 and a lower arm 58, the upper arm having a stud 59 thereon adjacent to its upper end. The controlling lever and the controlling bar are arranged between the thicker portions 13 and 14 of the back plate and a suitable distance apart `to receive a coin of certain denomination between them, and the lower arm 58 preferably has a concavity 60 in the edge thereof that is presented towards the bar 54, to receive a portion of the coin and temporarily hold the coin in contact with the bar 54. The arm 58 extends against the abutment portion 43 of the lock bolt and adjacent to the thinner portion 41, the concavity preferably being arranged so as to retain the coin opposite to the portion 41. The lower end of the arm 58 preferably is relatively broad so that a portion thereof projects laterally to form thelower portion of the concavity. It will be seen that the back plate 3, the guide plate 19 L which constitutes a frame member, and the bar 54 and the opposite lever constitute a coin chute.

The plate 19 is provided with a pivot 61 to which a lever or operating arm 62 is connected, the arm 62 having a wrist pin 63 thereon that extends through a. slot 64 in the plate 19 and extends also into the slot The arm 62 has a lug 65 thereon to which a coil spring 66 is connected, the spring being suitably anchored preferably tothe stud 50, to yieldingly hold the bar 54 against the adjacent lower portion'ot the back plate portion 13. The arm 62 has a boss 67 on its front and the boss has a key slot 68 in its front portionjA A knob 69 has aV suitable spindle member 7() that is `rotatively arranged in the front plate 20 in alinement with the pivot 61 and so that the knob shall be carried by the front plate and prevented from being removed when the front plate 2O is secured t0 the remaining portion of the lock casing. The knob spindle has a key 71 on its inner end that* extends into the slot 68 which enables the knob to move the lever arm 62 and the arm to move the controlling bar 54. j

For the purpose of enabling the door to be opened by a person within a room or apartment a spindle 72 is arranged so as to extend through the door 2 and through the backplate of the lock, and it has a knob 7 3 fastened thereto at the inner Vside of the door. A lever is secured between its ends to the spindle 72 so as to have a downward extending arm 74 and an upward extending arm 75. The arm 74 extends partially across the front of the abut-ment portion 43 of the lock bolt and betWeenthe stud 47 and the adjacent edge of the frame member 19,

and preferably the arm is yieldingly drawn towards the frame member by means of a coil spring-7 6 anchored to a stud 77 secured a special key to be inserted through a key hole 8Ok in the front plate 20, so that in special cases the door may be unlocked from the outside without the use of a coin.

The projecting portion 7 of the top 6 has a downwardly extending guide plate 81 suitably fastened thereon and it partiallyguidesa shutter comprising a main portion 82 having a stem 83xI thereon toy which a guide portion v84 is connected, the shutter being guided in a suitable groove in the front of the back plate of the casing, and being so arranged as to partly close the coin slot 8, the shutter being provided with a lug 85 arranged to be engaged by the device 59 on the arm 57 for moving the shutter to closing position. The portion 14 of the back plate has a. pivot 86 thereon below the plane of the shutter and it supports a trigger device 87 having a cam face 88 to be engaged b-y the upper vend of the arm 75, the upper portion of the trigger having a catch shoulder 89 to engage the shutter and hold it in closing position, or permissibly engage a suitable device on the shutter, such as a pivot 90 or the end of a rod 91 connected to the pivot, the rod being connected to a crank arm 92 secured to a rotative shaft 93. A coil spring 94 is suitably anchored to the casing and arranged'to retractl the shutter in order toopen the coin slot, and preferably the spring is connected with the rod 91 and the crank arm. The shaft 93-is the actuating member of a counter 95 which will be seen through an aperture 96 in the front plate 20, the aperture having a suitable shutter 97. It should be understood that the counter can be variously operated so as toi record or indicate the number of coins usedy in the operation of the lock.

In practical usev a coin 98 is inserted through the slot 8 and descends by the force of gravity through the coin chute-until it is stopped opposite to the front of the body portion of the lock 'bolt with a portion of the edge of the coin in the eoncavity 60. f then the knob 69 be turned in the'only direction permissible the arm 62 is caused to swing and lit in turn causes the controlling b-ar 54 to swing, as indicatedin Fig. 6,' the controlling bar pushing the coin which forces the arm 58 back and it in turn retracts the lock bolt, after which the door may be opened. As the arm 58 is swung back the arm 57 is swung away from the portiorr 14 of the casing and the device 59 engages the lug 85 and moves the shutter to closing position. After the door is opened the knob may be released and the spring 48 permitted to project the lock bolt, the coin then remaining in place as in Fig. 5. After the shutter has been moved to closed position the trigger device 87 tilts by the force of gravity into contact with'the top of the lever arm 75, permitting the shoulder 89 to engage the shutter and hold it in position.`

The door is usually closed forcibly, causing the inclined face/46 of the lock bolt to strike the keeper 51 which causes retraction of the lock bolt, and after the door becomes closed the bolt is projected into the keeper. As the lock bolt is thus suddenly thrust back the controlling bar 54 remains suspended normally, as in Fig. 7, and the pressure of the lock bolt against the arm 58 is released, so that the weight of the coin causes the freely swinging arm 58 to release the coin which falls through the slot 12 into the coin box. The door may be now opened from the inside by turning the knob 73 which' causes the arms 74 and 75 to be brought approximately to the position shown in Fig. 7, the arm 74 engaging the stud 47 and retracting the lock bolt, while the arm engages the cam face 88 and lifts the device 87 approximately as shown vby broken lines in Fig. 7. On further movement of the arm 75 the trigger is further tilted until the shoulder 89 releases the shutter which is retracted by its spring. The arm 75 is further moved in the operation of the knob until it has passed the trigger and is brought approximately to the position'indicated by broken lines in Fig. 7 when the lock bolt is fully retracted, the position of the arms being indicated by broken lines also in Fig. 4. When the shutter is released and retracted it passes over the top of the trigger and holds the trigger lapproximately as shown in Fig. 4. Also, when the shutter is being retracted the lug 85 engages the stud 59 and pushes the arm 57 back to normal position as it appears in Figs. 4 and 5, and the lock is again set to receive the coin to be operated as before.

Having thus described the invention, what is claimed as new is 1. A coin-controlled lock including a projectable lock bolt, a spring arranged toproject the bolt, a controlling bar pivotally supported above the lock bolt, a controlling lever pivotally supported above the lock bolt opposite to the controlling bar and with the bar forming a coin chute and having two arms, one of the lever arms being o-perated by the bar with a coin and engaging the lock bolt to retract it, and a coin slot shutter movably supported above the coin chute and operated by the remaining one of the lever arms.

2?* A coin-controlled loclr including a projectable lock bolt, a spring arranged to project the bolt, a controlling bar pivotally supported above the loclr bolt, a controlling lever pivotally supported above the lock bolt and having two arms, one of the lever arms being operated by the bar with a coin and engaging the lock bolt to retract it, a coin slot shutter movably Supported and operated by the remaining one of the lever arms, a trigger pivotally supported to engage and hold the shutter when operated, a rotatively supported spindle, and a leverr arm secured to the spindle and movable into engagementI with the trigger to trip it to release the shutter.

3. A coin-controlled lock including a projectable lock bolt, a spring arranged to project the bolt, a controlling bar pivotally support-ed above the lock bolt, the bar constituting one wall of a coin chute, an operating arm pivotally supported above the loclr bolt and having connection with the controlling bar to operate the bar, a lever pivotally supported to constitute an opposite wall of the coin chute, the lever having two arms arranged opposite to the controlling bar, one of the lever arms being arranged to be operated by the controlling bar with a coin and engaging the loclr bolt to retract it, a coin slot shutter movably supported and operated by the remaining one of the lever arms, and a knob having a rotative spindle connected with the operating arm.

4. A coin-controlled lock including a movable lock bolt, a spring arranged to project the bolt, a controlling bar pivotally supported and extending downward and adjacent to the lock bolt, the bar constituting one wall of a. coin chute, a controlling arm pivotally supported opposite to the bar and having connection with the lock bolt to retract the bolt, the arm being arranged to be connected by a coin with the bar to operate the arm, an operable operating arm pivotally Supported and having connection with the controlling bar to pivotally move the bar, a horizontally movable coin slot shutter, a spring arranged to retract the shutter, a trigger movably supported to engage and vhold the shutter when projected, means operated by the controlling arm to project the shutter, and means for moving the trigger to release the shutter.

5. A coin-controlled lock including a pro-V ljectable lock bolt, a spring arranged to project the bolt, a controlling bar pivotally supported and having a longitudinal slot therein, an operating arm pivotally supported and having a wrist pin thereon extending into said slot, a lever pivotally supported and having two arms arranged opposite to the controlling bar, one of the lever arms engaging the loclr bolt to retract it and having a coin-holding projection extending towards the controlling bar, a coin slot shutter movably supported and operated by the remaining one of the lever arms, a knob having a spindle connected with the operating arm, and a supported spring having connection with the operating arm.

6. A coin-controlled lock including a movable lock bolt, a spring arranged to project the bolt, a controlling bar pivotally supported and extending downward and adjacent to the lock bolt, a controlling arm pivotally supported and having connection with the lock bolt to retract the bolt, the arm having a projection extending towards the controlling bar to support a coin in contact with the bar, an operable operating arm pivotally supported and having connection with the controlling bar to pivotally move the bar towards the controlling arm, a spring arranged to move the operating arm and the controlling bar in the opposite direction, a. movable coin slot shutter, a spring arranged to retract the shutter, means for projecting the shutter, a trigger pivotally supported to engage and hold the shutter when projected, a rotatively, supported spindle, and a lever having two arms and secured'to the spindle, one of the lever arms having connection with the lock bolt to retract the bolt, the other of the lever arms being movable into engagement with the trigger to trip it to release the shutter.

7 In a coin-controlled lock, the combination of a lock bolt horizontally movable and having an abutment and a shoulder facing the abutment, a frame plate i'ixedly arranged opposite to the lock bolt and provided thereon with a pivot, a controlling bar having an upper portion pivotally supported and a lower portion arranged between the lock bolt and the frame plate, the bar constituting one wall of a coin chute, an operable operating arm supported on said pivot and operatively connected with the controlling bar to operate the bar, and a controlling arm having a portion pivotally supported and a lower portion arranged opposite to the lower portion of the controlling bar between the lock bolt and the frame plate and against said abutment, the controlling arm being operated by the bar with a coin, and a supported spring engaging said shoulder to project the lock bolt.

8. In a coin-controlled lock, the combination with a movable lock bolt having an abutment and a shoulder facing the abutment, of a controlling bar having an upper portion pivotally supported and a lower portion arranged between said abutment and said shoulder, a controlling arm having a portion pivotally supported and a lower po-rtion arranged between the abutment and the lower portion of said bar, a supported spring engaging said shoulder to project the lock bolt and thereby hold said abutment against said arm, and means for operating lthe controlling bar.

9. In a coin-controlled lock, the combina tion of a casing comprising a back plate and a front plate, a Jframe plate ixedly supported between the back plate and the front plate and provided thereon with a pivot, a lock bolt movable between the back plate and the frame plate, a spring arranged to project the lock bolt, a controlling bar pivotally supported above the lock bolt and extending downward and adjacent to the bolt and between the back plate and the frame plate, an operable operating arm supported on said pivot and having connection with the controlling bar to operate the bar, and a controlling arm pivotally supported above the lock bolt and extending downward opposite to the controlling bar to be connected therewith by a coin and having connection with the lock bolt to retract the bolt.

10. In a coin-controlled lock, the combination of a casing with a top having a coin slot therein, a shutter movably guided under said top to be projected to closesaid slot, a counter supported in the casing and having an operating device, a rod connected to the shutter and to said device, a spring connected to the casing and having connection with said rod and said device to simultaneously retract them, a lock bolt movably guided in the casing, a spring arranged to project the lock bolt, a controlling bar pivotally supported and extending downward and adjacent to the lock bolt, means for operating the controlling bar, a lever pivotally supported andl having an arm arranged to retract the lock bolt and an arm arranged to project the shutter, a trigger movably supported in the casing to hold the shutter when projected, and separate means supported by the casing to simultaneously retract the lock bolt and aetuate the trigger to release the shutter.

11. In a coin-controlled lock, the combination with a casing having a coin slot in its top, of a shutter movably guided under s aid top to be projected to close said slot, a spring connected to the casing and having connection with the shutter to retract the shutter, a lever pivotally supported and having connections to project the shutter, a trigger pivotally supported and having a shoulder to engage and hold the shutter when projected, the trigger having a cam face, a lock bolt movably guided and engaged by the lever to be retracted thereby, a spring arranged to project the lock bolt, a controlling bar arranged opposite to the lever and pivotally supported, an operating arm pivotally supported and having controlling connection with the controlling bar, a knob having a spindle detachably connected with the operating arm, a spindle rotatively supported and having a knob on one end thereof, the opposite end of the spindle having a keyconnector thereon, a lever secured to the last described spindle and having an arm to engage and retract the lock bolt and also an arm movable into contact with the cam face of said trigger to actuate the trigger to release the shutter.

12. In a coin-controlled lock, the combination of a casing comprising a back plate and sides and also a top and a partition, the back plate constituting one wall of a coin chute, and a front plate removably secured to the sides and the top and the partition, said top and `said partition having each a coin slot therein arranged one above the other; a frameV plate secured to the inner side of said back plate to form an opposite wall of the coin chute and extending approximately to said partition, the frame plate having an opening therein, a lock bolt movably guided in the back of said plate above said partition and having a face forming a portion of the wall of the coin chute opposite to the frame plate and normally projecting through one of said sides, a spring supported in said casing and projecting said bolt, a controlling bar pivoted to said back plate and extending nearly to said partition, the bar constituting another wall of the coin chute, a controlling arm pivoted to said back plate and extending nearly to said -partition at a distance from said bar to constitute an opposite wall of the coin chute and having engagement with said bolt to retract the bolt, the controlling arm being operated by the controlling bar with a coin, an operating arm pivoted to said frame plate and having a wrist pin thereon extending through said opening and having connection with said controlling bar, and a knob spindle rotatively supported in said front plate and connected with said operating arm.

In testimony whereof, we afix our signatures in presence of two witnesses.

EDWIN L. EDWARDS. FRANK A. FARWELL. FRANK o. WILEY.

Witnesses:

E. T. SILvIUs, ROBERT LIEBRICH.

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