US1458539A - Lock - Google Patents

Description

June 12, 1923;

R. S. MURRELL LOCK Filed Oct. 8, 1920 4 Sheets-Sheet 1 FIBIZ F] El 1 5 INVENTOR.

Fl El 7 RICHARD EMMU'RRELL June 12, 1923. 1,458,539

R. S. MURRELL I LOCK Filed Oct. 1920 4 Sheets-Sheet 2 Flam 4/ lll m 52 44 5/ 35 Z: a

FIEIIU 37 FIEnS FIE-n12 INVENTOR.

RICHARD S. MURRELL A TORNEYJ R. S. MURRELL LOCK.

Filed on. a. 1920 4 Sheets-Sheet FIGIE RICHARD SBE MURRE LL I Mommy:

R. S. MURRELL June 112, 1923.

Locx

Filed 001;. a, 1920 4 Sheets-Sheet 4 FIEI IE1 FIEHIS IN VENT 0R.

RICHARD 5| M URRELL A TTORNE J Patented June 12, 1923.

UNITED srarss 1 PA NT or it:

asses RICHARD s. MURRELL, or COLUMBUS, OHIO, ASSIGNOR or oivn-rnrnn'ro CLARENCE w. SHIGLEY, F coLUMBUsoHro.

LOCK,

Application filed October 8, 1920. Serial No. 415,543.

To all QU/LO'W'L it may concern: I

Be it known that I, RICHARD S. MURRELL, a citizen of the United States of America, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Locks, of which the following is a specification.

My present invention relates generally to locks applicable to locker doors, automobiles, residences, vaults, public buildings, offices, and in fact practically everywhere that special locking facilities are required, and is more particularly that type oflock, usually coin controlled, where, upon the shifting of the locking bolt or member, a key disk and the like is discharged into the hands of the user and is required for subsequent insertion in order to shift the lock to open position.

It is a com'mondisadv-antage of locks of this type which employ a key disk, that nothing prevents the user from having duplicates of the key disk made while in his possession, which he can subsequently use to open a locked door in an unwarranted manner.

The primary object of my invention is to provide a lock of the above, type inwhioh the above disadvantage is not present and in which the subsequent unwarranted use of duplicates previously made isso unlikely to be successful as to make its attempt im- 1 practical. I a

opening of the lock except by the use of the identical key disk dispensed or dis charged during the previous locking operation. The setting mechanism ust referred to partakes to a considerable extent of the nature of the tumblers of a lever lock, in fact its principal components are tumbler lockin'thesense that the usual bolt throwing key is avoided, thebolt moving to locked position either with or without requiring a. coin'foi'" this purpose, and shifting in the deposits direction to unlocked position, only Generally speaking my invention pro levers, and the lock as a whole is a keyless in the presence of that key disk discharged at the previous locking operation.

Thus by the use of a series of key disks in the manner I will presently describe,-,the-

danger of-fraud and theft is avoided and an element of safety assured which cannot reside in those locks of its class now in use.

In the accompanying drawings which illustrate my invention and form apart of this specification.

, Figure lis a front view ofthe lock mechanism in unlocked position with the front the parts partially shifted to unlocked position,

Figure 5 is a side view of the mechanism looking fromthe left of Figure 1, with the left side wall of thecasing removed,

Figure 6 is a similar view looking in the opposite direction,

Figure J7 is a plan view of the mechanism with the top of the casing removed, the

parts being in the position of Figure 1,

F igureS is a similar view. with the parts 1 in the position of Figure 2,

Figure 9 is a crosssectiontakenon line 99 of Figure 4:, I

the key disks, i a I Figure ll is a side view thereof, Figure 12 is detail view showingthe disk receiving aperture of thecasing,

Figure 13 is a detail'side view of the bolt carriage removed, v v I .1 Figure'ld is a partial sideview thereof, Figures 15 and 16 are crosssections taken and 1616 of Figure 4, I

I Figures 17 and 18 are respectively a side view and top plan of the carriage" supporting bracketremoved,

Figure l9 is a partial sideiview illus tratin'g ayslight-ly modified form, and, I

Figure 20 is an elevation showing one of the many applications of the inventions,

Referring now to" thesefigureS; Tha ve' shown in Figures" 1 to" i particularly recs parts Figure 10 isa. top plan. view of one of position,

respectively on lines 15 15 of Figure 3 tangular lock casing including a rear plate 25, side walls 26 and 27, a top wall 28, and a front wall 29, see Figures 7 and 8, which has an upper coin receiving slot, a lower disk discharge opening and a disk receiving slot between the coin slot and discharge opening, respectively registering with the coin slot 30, disk discharge opening 31 and disk receiving slot 32of a door casing and the like which may be the frame of a locker 33 as in Figure 20, adjacent to the door 34 whose control is sought to be effected. This latter figure in particular illustrates the adaptability of the lock as a wholeto doors opening in relatively opposite directions and located in adjacent relation to one another.

Through the front of the door frame projects a bolt operating handle 35, fixed to the forward end of a shaft 36 which is journaled through'the rear and front plates 25 and 29 and extends loosely through the side wings 37 ofa bolt throwing member 38 which swings in the casing with rotation of the shaft. The shaft also extends loosely through one end of an actuating arm 39, one end of which is engageable by the member 38 and the lower end of which is connected by a spring 40 with the upper end of a vertically shiftable, locking slide 41 mounted to move upon the inner surface of the side wall 27.-

The bolt throwing member 38 has its lower portion straddling the bolt 42 and also has a coin chute 43 which in the normal unlocked position shown in Figure 1 has its upper end opposite the coin slot and has its lower end alined above a trans verse recess 44 in the upper edge of the sliding bolt 42, so that a coin 45, resting partially in this recess and partially within the coin chute, forms a connection between the swinging member 38 and the bolt 42 by means of which the latter may be shifted to the locked position of Figure 2 with its freeend projecting externally through an opening in the side wall 26. The coin chute 43 has a side wing 46 which moves opposite the coin receiving slot as the member 38 is shifted to locked position as in Figure 2 and prevents the entrance of another coin while the bolt is locked.

In order that the member 38 can yield to a slight extent at the limits of its movement, the. connection between the same and the shaft 36 is in the nature of a spring 47 coiled around the shaft with one end connected thereto and the other end connected to member 38, the latter operating in its swinging movement to locked position, to shift the locking slide 41 downwardly in order to project its lower locking block 48 between the inner end of bolt 42 and the side wall 27. For this purpose member 38 engages arm 39 which is connected to the cesses of the key disks.

upper portion of one of the wings 37 by a spring 49 to provide for its subsequent upward movement.

The bolt 42 has a depending carriage shiftable therewith and is guided in its movement by its free end in the wall opening and by a bracket 50 secured to the side wall 26 the upper, inner portion of which carries a transverse guide pin 51 projecting through a lengthwise slot 52 of the bolt. The bolt carriage as seen particularly in Figure 13 includes an upright 53 having at its lower end inward angular extensions 54 and having upper vertically spaced horizontally disposed shelves 55 and 56, the former constituting a disk receiving plate and the latter constituting a disk storage plate. At its inner end bolt 42 also has a depending extension 57 whose side plate 58 opposes the disk storage station and terminates at its lower end a distance above the disk storage plate 56 of about the thickness of one of the unlocking or key disks 59. This extension 57 has an upper plate 60 slightly below the level of the disk receiving plate 55 and adjacent to the same for a purpose to be presently described.

The inner ends of the lower angular extensions 54 of the bolt carriage are connected by a transverse pin or shaft 61 upon which the lower ends of a series of tumblers or look setting levers 62 are mounted in a series between a pair of disk guiding levers 63. Each of the several levers 62 and 63 is connected to the carriage upright 53 by a spring 64 and the levers or tumblers 62 have upper recessed ends or heads 65 to cooperate with a rectangular locking frame 66 at the lower portion of the locking slide 41. The levers 63 terminate below the upper ends of levers 62 and, like the latter, are independently swingable inwardly by the recessed edge of the lowermost key disk of the vertical series of superposed key disks on the disk storage plate 56.

The bracket 50 has a lower inwardly projecting fork 67 which, during movement of the bolt 42 to locked position extends through apertures in thecarriage upright 53 and, being rigid and disposed 'in the plane of the lowermost key disk of the series,

forces said key disk from beneath the others and against the levers 63 and also the tumblers '62 except those alined with the re- This movement of the parts appears in Figure 3 and by means thereof certain of the tumblers are shifted inwardly to receive thereove'r, and engage,the locking frame 66. The other tumblers remain outside this frame and are subsequently prevented thereby from inward shifting movement.

Thus in the locked position shown in Figure 2 the locking engagement between certain of the tumblers 62' and the fra-me6'6,

holds the slide 41 in lowered position, so that its block 48 prevents inward movement of the bolt; lVhen the parts have been locked and pressure on the handle is released, the key disk pressed out of the series of disks as in Figure 3, is shifted clownwardly into akey disk discharge chute 68 p comparatively simple construction, the sevcarried by the upright 53 and thelatter registers, in this positionot'the, bolt, with the key di-skdiseharge opening 31. The key disk is shifted at thistime into this chute by the arms 63nnder tension of their spring 64 as seen ind'otted lines in Figure 3, and the operator thus becomespossessed of a key disk different in recessing from all other keys of the series, and the only one of the series capable of releasing the look as it has, in discharging from the vertical series of disks, practically set'its' own combination.

For releasing the look by shifting the locking bolt 42 inwardly, the lower portion of I the bolt shifting member- 38 is movable against laterally projecting pins 69 of the" bolt, see Figures a and 9-, but until the proper key disk is inserted through slot 32,the,bolt cannot be shifted. lVhen the proper key disk is inserted it is positioned on the disk receiving plate 55 in the position shown indotted lines in Figure 3 so that the lower angular portions70 of the side wings 87 of the bolt throwing memberwill engage the same upon turning of the handle 35 inthe proper direction. 1

During the. swinging movement of member to the position'of Figure 4 it is obvious such movement takes place relative to the arm 39, the latter remaining practically stationary as the key disk is shifted inwardly into engagement with the tumblers 62 which were previously pressed inwardly. As soon as these tumblers are freed from the. frame 66, the slide 4:1shifts upwardly by virtue of the tension of spring 49. In pressing the tumblers 62 inwardly, the key disk has also en gagged and pressed the levers 63 inwardlyyso that whenthe disk is pushed inwardly beyond the inner edge of the disk receiving plate 55. andpressure released, it drops and levers 63 shift the same forwardly onto the stack of disks resting on the storage plate 56.

At about the same time the tumblers 62' are releasedfrom the frame 66. the lower portion of member 38 engages the pins 69, thus at a time when the bolt 42 is free to shift inwardly to the normal released position of Figure 1 upon further swinging movement of the handle.

Thus at each bolt releasing operation,

the key disk withdrawn from the bottom of the stack or magazine, is returned to the top thereof, and 1t 1s thus obvious that the same key d1sk 1s used once 111 so many operations only, dependent upon the number of key disksin the 'magazine. It is alsoobvious that with a plurality of tumblers 62 the,

range of variationjin theformat-ion of the recessed edges of the disksis extremely wide, the number of combinations far beyond the requirements. i Q I The lock proposed'is' strong,'durable, of

eral parts capable ofready quick manufaca whole obviously avoids the difiiculties and disadvantages of those known'at the'present ter to lockedp'osition. i i I As before stated, when the parts are in the normal inactive position of. Figure 1, the coin chute43 isopposite the coin receiving slot3O and when a coin has been inserted and the parts shifted to the-locked ture in large numbers, and the structure as 1 jection 71 of the bolt 42 to throwthe latposition of Figure 2 the coin receiving slot is covered by thewing 46 so that a coin can not be thoughtlessly placed in a lock already in use. In a similar manner, whenthe parts are in the locked position of'Fi'gure 2 the disk magazine and disk discharge'chute are respectively opposite the disk receiving aperture 32 and disk discharge slot 31, but

when-the parts are again inthe position-of Figure 1. the adjacent side of the carriage upright-53 closes. said aperture and said slot both against unwarranted withdrawal of a f diskand insertionof a key belonging to an otherloc-k. T'

' 1..In a lock, a bolt, manually actuated means for slnfting the bolt to locked and released positions, a single bolt lockingmember shiftable by said manual means into the .path'o-fretractile movement of and engageable, with the bolt when the latter is in locked 'position, a series of tumblers selectively movable to engage and hold the: bolt locking inemberin effective position, a magazine, and a series of successively operable tumbler controlling members in the magazine, 5 having differently positioned tumbler shifting means and having individual movement into engagement with the tumblers within and from the magazine upon actuation of the said manual bolt shifting means.

2. In a look, a bolt, .manually actuated means for shifting the bolt to locked and released positions, a single 'boltlocking mern ber movable into and out of effective position for securing the bolt in the locked position or the latter, a series of selectively operable tumblers lockingly engageable with the bolt for the purpose described.

tive position, and aseries'of' successively operable tumbler controll1ng..membe'rs individually dischargeable from and insert-able within' the lock, having differently positioned tumbler engaging and shifting means 3;In look, a bolt, manually actuated means for shifting the bolt to locked and released positions, a single bolt locking member movable into and out of effective: position for securing the bolt in the locked position'ozf the latter, a series of selectively operable tumblers lockingly engageable with the bolt securing member when the' latter is in effective position, and'a seriesof successively operable tumbler controlling members individually dischargeable from and insertable within the lock, having differently positioned tumbler engaging and shifting means, anda magazinewithin the lock from one endof which a tumbler controllingmember is: dischargeable and into the opposite end of which the tumbler controlling member is insertable. i

4. In a lock, a manually shiftablebolt', a carriage'supported by and movable with the bolthavi'ng'a magazine, a series of members having different tumbler controlling means in the magazine, each .disoh'argeable from one end ofthe magazine and insertable within the opposite'end, Ineans to discharge one of the said members during movement of the bolt to locked position, a bolt locking mem- "bar shiftable into and out of effective position in the path of retractile movement; of

vthe bolt, and a series of tumblers engag'ea-ble and Controlled by the members of the magazine during movement of tho-latter into and out of the magazine, said tumblers being lockingly engageable with the bolt locking member when the latter is'moved' to effective position,

' 5'. In a look, a manually shiftable bolt, a

carriage supported "by and movable with the bolt having a magazine,"a series ofmembers having different tumbler controlling means in the magazine, each dischargeable from'one end of the magazine and insertable within the opposite end, means todischarge one of said members during movement of the bolt to locked position, a. bolt locking mom J ber shif'table into and out of effective position in the-path of retractile movement of the bolt, and a series of tumblers engageableand controlled by the members of the magazine during movement of the latter. into and out of the magazine, said tumblers being lockingly engageable with the bolt locking member when the latter is moved to effective position, and being arranged in a series on the bolt carriage opposite the said magazine "and pivoted at one end for'the purpose described. a i A 6. In 'alock, amanually shiftable bolt, acarriage supported by and movable with the bolt having a magazine, a series of members having different tumbler controlling means in the magazine, each dischargeable from one end of the magazine'and insertable within the opposite end, means to discharge one of the said members during-movement of the bolt to lockedposition, a-bolt locking member shiftable into and out of effectiveposition in the path of retractilemovement of the bolt, and a series of tumblers pivoted on the, carriage and selectively shiftable into and out of locking' engagement with the bolt locking member under control of sald magazine members sertioil within'the' magazine.

7. In a lock, a, bolt, a controlling handle, a swinging bolt shifting member having a yielding connection with the handle, a bolt locking member, an arm'forshif'ting the bolt locking member into effective position havdurin discharge of the latter from and ining a movable connection with said bolt shifting member, a series of selectively movable tumblers each-of which is lockingly engageable with the bolt locking member in the effective position, with the. latter, a carriage supported-by and movable with the bolt, upon which the said tumblers are movably mounted, a magazine in connection with the carriage, and a series of tum bler controlling members in the magazine successively shiftablefrom one end' of the same and dischargeable from thelockduring effective movementsof the-bolt to locked position, each of said members being insertable into the opposite end of the magazine and each thereof having selectively positioned tumbler engaging portions enga-ge'able with the tumblers to respectively set and release the same upon movement of themembers out of and into the magazine.

In-testnnony whereof 1 have affixed my signature.

RICHARD s. MURRELT.

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