US1463230A - Push-key combination padlock - Google Patents

Description

July 31, 1923.

1,463,230 0. J. soumss PUSH KEY COMBINATION PADLOCK Filed Sept; 13, 1920 [nvenlor Patented July 31, 1923.

crrnsrnn :r. SQUIRES, or eALEsBUe rNoIs.

To all 10 hom it may concern:

Be it known that I, CHESTER J S UIRES, a citizen of the United States, residing at Galesburg, in the county of Knox and State of Illinois, have invented new and useful Improvements in Push-Key Combination Padlocks of which the following is a specification.

My invention relates to certain new and useful improvements in push-key combination padlocks, the object of which is to provide a padlock that can be locked or unlocked by sight or by touch, in daylight or darkness, without the necessity of carrying a key for that purpose. r

v I attain these objects by the mechanism illustrated in the accompanying drawing, in which Fig. 1 is a front view of the lock body with a dot-ted line showing the position of the co-operating member when the lock is assembled. Fig. 2 is a side View of the lock body. Fig. 3 is a front view of the co-operating member. Fig. 4 is a sideview of the same. Fig. 5 is a section through line AB of Fig. 1, assuming that a complete lock I has been assembled. Fig. 6 is side view of one of the push keys.

Similar numerals refer to similar parts throughout the several views. I

l is the body of my improved padlock,

and consists oftwo parallel, circular disks spaced apart in axial alignment and securely held in said relation by being made integral with a single shackle arm and thus integral with each other. 2 is a co-operating lock member consisting of a second shackle arm integral with a ring whose outsidediameter corresponds with the outside diameter ofthe disks of body 1 and whose thickness permits it to be inserted between said disks and to be mounted for partial revolution in said relation thereto. I

The disks of lock body 1 are provided with radially extending rectangular slotted holes 9 all of identical size and shape, placed at a uniform distance from the disk axis and arranged in anequally spaced circular series, each slot 9 in either of the disks'being in exact alignment with a corresponding slot 9 in the other disk. 1 I v The ring or look member 2 is of such depth that, when placed in operative position between the'disks of body 1, and with the inner edge of said ring intact, a determined portion,- say two-thirds, of the outer end of PUSH-KEY COMBINATION PADLOCK."

Application filed September 13, 1920. Serial No; 409,870.

each slot 9 is thereby closed. However the inner edge of the ring or look member 2 is not left intact but is provided with a series of notches 3, equal in number to the series of slots 9, and s0 located that each of said notches 3 registers with a slot 9 when the ends of the two shackle arms are in engagement with each other, the depth of said The inner edge of the ring of lock member 2 is also provided with notches 4, preferably two in number and located at diametrically opposite parts of said ring. Each of these is placed between adjacent notches 3 and is made of such depth that when a notch 4 is caused to register with slot-9, said slot 9 is opened to its full size. At the same time the other notch 4 will also 'register'with a slot 9 providing a full sized opening at thatpoint. I I

4 The shackle arms of body 1 and co-opcrating lock member2 being so placedas to permit more than one half of a revolution of member 2 with relation to body 1, it'is evident that each of the'notches 4 in member 2 may be caused to successively register with half or more of the series ofslots 9 in body 1. the two notches 4- thus providing forthe opening of all of the slots 9.v

Push-keys 6 are provided; one for each slot 9. These keys are all identical. key 6 has in one of its edges a notch 7, a portion of which is cutdeeper than the remainder leaving a projecting corner8' in said notch 7 A p ng, coil, is placed in theposition as shown in Fig. 3.. and Fig. 5. It presses against the inner edge of the push-keys, 6, and is used as a means of retaining said keys in the position in which theyhave been placed. 7

The assembling of the parts thus described is accomplished as follows Lock member 2 and spring 5,'are first inserted between the disks'of body 1. They are then so adjusted that each notch 4 registers "105 being turned outward. The deeper portion "110 5, which maybe-only a single of notch 7 of each key 6, as inserted, is made to register with .theispace between the disks of body 1 and the; depth :ofrsaid portion'of notch 7 having been gauged to permit the passage of the unnotched po-rtion of the inner edge of ring of 'm'ember'2,'said member 2 is then turned until other slots.9 register with notches 4, and keys 6 are inserted as just explained. This is continued until all of slots 9 have been filled with keys 6.

{It will be'iunderstood that keys 6, when in this position securely retain body 1 and member ,2 in operative arelation, permitting [the-ends of theinshackle arms to be caused tto engage each *otheror to be drawn apart, and that keys-6 providea series of bearing points ,for the ring of unember 2,.permitting the revolution of said ring with relation to abOd-y 1 to fiche-extent allowed by theshackle ianms.

After pushs-keys 6 have Zbeen inserted, as explained, the ends of the-shackle arms on body 1 and member Qenay be caused toengage each other. VVitlrthe parts in this relation, any {or all of the keys 6 .may be shifted causing gprojectingicorner-8 of each key; shifted to enter notch '23 in the ring .of :n'iember:2,'effectually locking the entire de- KVIGB; r

Ifialliof the push keys 6aare inserted with :the end znearest to .the deeper portion of match 7;=ef each key 6 toward the backof i10Qk1b0dy 1,:thepaIitS will be -.unlocked when ever the ends of all the keys 6 are even with the ..-back. surface of body 1 and will be l ck d whenever :one =or any .number of said ends ofikeys (S-extends beyond said back surface. But this arrangementofkeys 6 would :make .it too :easy to unlock, it being merely TQ QUGSblOllyOf pushing keys 61as far as they will go,'zall:in-.onedirection.

. :But instead -.of arranging keys 6 in this manner, suppose that, for instance, three of them, say those :occupying slots Nos. 2, 5, and, 7 arereversed so :as to have their ends even with the frontzas their unlocked position Then, as will :be readily understood, it will :be absolutely necessary to know which way to push each key for unlocking.

.Itis evident that the 1 arrangement'of keys '6 may be varied an indefinite number of :times ;a-siany;:one any two, "any three, any Qfoumor-any :five, i-fthere are ten in all, .be setto leepushed -in-one-direction for unlocking, ,while all [the others must be pushed ffthe-O-QPOSite direction. This makes it practically impossihle'ifor anyone, even the mostexpertgto open the lock without knowgrthe combination. r 7;. Ell-he arrangement of the combination ef 16YS -6 nnay be changed =as often as desired. .Any one .ofrsa-id keys imaybetremoved when ever 1the parts are flln-lOGkGd by pressing .on theend =of'ithe =.ke v to be changed which (is ,even (with the surface ofilock body 1 and at same time turning member 2 until the key pressed .upon enters a notch 1 of said member 2. That they may then be withdrawn from its slot 9 and replaced in reverse position. If desired all keys 6 may be withdrawn 'successivelyan d left out, disconnecting memberfl from body 1.

I have entered into a detailed description of the construction .and relative arrange- :claim and desire to secure by Letters Pat- -ent is '1. In 221 device of the character described, a lock body comprisingtwoparallel circular disks, in axial alignment, spaced apart and held in;-said relation-by-shacklearms rigidly attached to a portion of the periphery of both of said disks; a :second shackle arm rigidly attached to a portion of the pe- :riphery "of an internally =notched ring, said ring having "an :outside diameter substantially the :same .as that of the body disk and being of a thickness to fit a-revolvab ly be- =tweensaid .disk there being aicircular series "of radiallyex'tending slots piercing-the two disks of the lock body: and in combination with saidstructure a push key for each of said slots adapted to be :slidably inserted therein, each -=of :the said push keys having a notch in its outer1edge,=-a3part of each of said notches -.being out to. a greater depth than the remainder thereof, substantially as described and :for themurp'ose specified.

2. iPhestructui-e specified incla-im Leach of said push keys being anexact duplicate of each of -.the others and all being interchangeable and i reversible.

3. The structure specified in claim 1, the "ring attached to said second shackle arm being made sot-such internal diameter as to fit loosely around said push keys at "the deepest portion of the vnotc'hes therein provicled. substantially "as and for the purpose described.

4. The structu-rei-specified in claim 3 the internal notches in said ring being equal in number to the slets in the lockbody and registering there-with when the ends of the shackle arms engage each otherpsa id notches being of suitable depth to receive the less deeply-i-notchediportion ofithe push-keys. but not permitting "the passage efthe heads ief said push-keys. V

5. The :structure specified in claim 4.,

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said ring being provided with two additional notches in its inner edge, each of said additional notches being between two of the first mentioned ring notches and being of suflicient size to permit the insertion or withdrawal of a push key in any of the body slots with which said additional ring notch is manually caused to register.

6. The structure specified in claim 1, and in combination therewith, a spring enclosed between said body disks and adapted to press outward against the inner edges of said series of push keys and thereby hold them steady for manual op eration.

7. In a combination padlock, two shackle members, one mounted on a pair of axially aligned, parallel, circular disks spaced apart; and the other mounted on a ring adapted for limited rotation between said disks: and, in combinative association therewith, a circular series of'push keys, mounted in said disks and ring, concentrically with the common axis of same, adapted to prevent the separation of said disks and ring and manually adjustable to serve as an axle for said rotation of the shackle mounted ring or to prevent said rotation.

8. The structure specified in claim 7, and, in combinative association therewith, a spring enclosed between said spaced disks locking and unlocking means consisting of av projecting corner in a notched portion of each push key, said projection being adapted to be manually caused to enter or be withpush keys steady drawn from a corresponding notch in the inner edge of said shackle mounted ring.

11. The structure specified in claim 10, each of said push keys extending beyond the outer surface of one of said disks when in locking position and beyond the outer surface of the other disk when in unlocking position, the two ends of all push keys being identical in size and shape.

12. The structure specified in claim 11, each of said push keys beingreversible and the series of push keys being thereby adapted to permit a large number of permutations.

In testimony whereof I alfix my signature in the presence of two witnesses.

CHESTER J. SQUIRES, Witnesses: r

GLADYS DUNswoR'rH, J. H. Losnr.

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