US1604866A - Keyless lock - Google Patents

Description

Oct. 26 1926.

' M. WILDRIQK KEYLESS LOCK Filed Augusi'l 5. 1925 2 Sheets-Sheet 2 INVNTOR Y .Mand Wild/ick ATTORNEKS',

Patented ct. 26, 1926.

PATENT oFFlc MEADE WILDRICK, OF SAVANNAH, GEORG IA, ASSIGNOR T THE SESAMEE COMPANY, 0F HARTFORD, CONNECTICUT, .A CORPORATION OF CONNECTICUT.

KEYLESS LOCK.

Application iled August 3, 1925. Serial No. 47,979.

This invention relates to keyless locks and hasfor one of its objects to provide a lock construction of the class described, which while susceptible for use in many different places, is particularly adapted for use on the doors of country club lockers, safes, safety deposit boxes and the like.

A further object of the invention is to provide a keyless lock in which provision is made for readily changing the combination necessary to be set to control the lock.

A still further object of the invention is to provide a means for edectively preventing picking of the lock. l

A still further obfect of the invention 1s to provide a keyless lock in whichthe latching bolt is movable independently of the locking bolt whereby it.Will be possible to merely slam the door or other closure and lock the same even when the proper combination is not set.

With the above and other objects in view which will appear as the description proceeds, the invention consists in the novel details of construction and combination. of parts more fully hereinafter described and particularly pointed out in the appended claims.

Referring to the accompanying drawings, forming a part of this specification 1n which like reference characters designate like parts in all the views;

Fig. 1 is a front elevational view of a portion of a door, such for example, as a safe door with a lock constructed in accordance with the present invention, in place thereon;

Fig. 2 is a longitudinal vertical sectional view through the lock shown in Fig. 1, the parts being shown in the locked positions;

Fig. 3 is a fragmentary view similar to F 2 with the parts shown in the unlocked positions;

Fig. 4 is a transverse sectional view taken approximately on the plane indicated by the line4-4 of Fig. 2, looking in the direction of the arrows;

Fig. 5 is a similar view takenapproximately on the plane indicated by the line 54-5 of Fig. 2;

Fig. 6 is a fragmentary detail sectional view through a portion of one 0f the permutation wheels and the adjacent casing illustrating the anti-picking feature;

Fig. 7 is a detail perspective view of the locking and latch bolts;

' the indicia bearing ri Fig. 8 is a detail perspective view of a key controlled cylinder which may be employed in some instances, as for example, in safety deposit box lock in conjunction with the permutation lock;

Fig. 9 is an expanded perspective View of onel of the permutation Wheel assemblies; anc 4 Fig. 10 is a perspective View of a split locking ring which may be employed to maintain the permutation wheel assemblies in their assembled positions. u

Referring more particularly to the said drawings, the numeral 11 indicates the lock casing which is recessedl as at 12 to receive the permutation Wheels 13. These said wheels of which three are shown, are rotatably. mounted upon a transversely extending shaft 14 received in a bore 15 provided in the casing 11 and the said shaft is provided with an enlarged head 16 having a screw driver slot 17 and a threaded portion 18 which latter is adapted to engage a threaded counter bore 19 also provided in the casing 11. It results from the construction just described that the locking wheels may be readily assembled Within the casing by merely inserting them in the recess 12 in axial alignment and then introducing the shaft 14 through their respective bores until its threaded portion 18 engages the threaded counter bores 19 as will be readily understood.

Each of the permutation wheels as is best shown in Figs. 2 and 9, comprises a body member 20 which is provided with an axially extending hub 21 preferably 'integral with the said body lmemberor disc. The said body member is also provided with an annular recess 22 surrounding the said hub and with an inwardly projecting annular flange or rib 28 which is notched or cut away at one point in its circumference as indicated at.24, to accommodate a toe of the locking bolt as will presently be described. The external circumference of the body or disc member 20 is notched or recessed longitudinally as indicated at 25 to provide arcuately spaced lugs or teeth 26 which are adapted to be received in corresponding recesses 27 formed on the periphery of the indicia bearing ring member 28. The body member. 20 is also provided with an external circumferentially extending groove 29 While member is provided with a com anion groove 30, which grooves are adapte to re ister when the parts are assembled and which are adapted to receive va split resilient ring member 31 whereby relative axial movement of the members :may be normally prevented as will be readily understood.

The hub portion 21 ofthe body member preferably vextends somewhat to one side of the body member andis provided with a series of detent notches 32 arcuately spaced around its circumference, which notches are adapted to be engaged lby a detent member 33 carried by a disc 34 which discs in turir.k

with. The said latching bolt 36 as will bel clear from Figs.. 2, 3 and 7, is'cut away as at 38 to accommodate the locking bolt 37 'and the parts are so constructed as to permit a relative sliding movement between the two bolts as will be readily understood. The latchinv bolt 36 is also provided with an enlarged lhead 39 behind which is mounted a spring 40 which normally urges the said latching bolt outwardly to latching position, as shown in Fig. 2. The opposite end of the latching bolt 36 is provided with a downwardly extending lug 4l which is adapted to be engaged by the end of the bolt 37, when the latter is moved toward the right as viewed in Fig. 2, by means of the finger member 43 and its stud or pin 44, whereby the said latching'bolt may be withdrawn to the positionl shown in Fig. 3.

The locking bolt 37 is provided with a plurality of depending legs 45 which are substantially'L-shaped and which are provided with the upturned lockingy toes 46 which toes are adapted to pass through the slots or recesses 24 in the wheel members 2O as will be readily understood from the drawings. The said toes may, of course, occupy the positions shown in Fig. 2 in'which case by rotating one vor more of the permutation wheels 13, it is possible to lock the parts in the latched position and it is also possible that the said toes may be passed through the slots 24 into the recesses 22 of the wheels and the wheels then rotated, in which event the parts may be locked in the unlatched positions shown in Fig. 3.

In order to provide against the picking of the lock through the insertion of a thin instrument or feeler through the small apertures between the permutation wheels and the casing whereby the position of the slots 24 might be ascertained, I prefer to provide the indicia bearing rings 28 with circumferentially extending grooves 50, (see Figs. 3, 6, and 9) which in effect provides a pair of Lacasse shoulders upon the said rings. These I grooves 50 are adapted to receive similarly shaped lu s or ribs 51 provided upon the interior o thevcasin 11, whereby the apertures between the weels 13 and the casing walls are made tortuous, as clearly shown in Fi 6, thus making it substantially impossib e to introduce Aa thin wire or other instrument along side of the wheels and thereby ascertain the location of the toe accommodating slots 24. Y

` This peculiar relationship between the permutation Wheels and slotted portion of bank attendant. 'The present construction readily lends itself to such use, for by merely providing a cylinder member 55 at the right hand end of the latchin and locking bo ts, as shown in Fig. 2, w ich cylinder member is controlled -by the attendants key, in the usual manner, the movements of the lookin bolt 37 may be accomplished only when oth the permutation lock is set and the key look actuated by the said master key. In order to prevent the picking of the latch by inserting an instrument adjacent the latching bolt head 39, the front plate 57 of the lock may be made to project over or beyond the edge 58 of the door, as clearly indicated at-59, in Fig. 1.

y It will be noted from the foregoing that even though the parts are in the locked positions shown in Fig. 2, that it the door carrying the lockis open it may be closed and locked without the necessity of setting the combination, by merely slamming the same, inasmuch as the latching bolt 36 is free to move longitudinally. independent of the locking bolt 37, and that when the 'door is thus slammed, the said latching bolt will be merely pressed back against the action of the spring 40 and after the bolt head 39 has passed the keeper, the said spring will force the bolt back to operative position to lock the door. In this position it can only be moved, however, by setting the proper combination and then manuallyv moving the locking bolt 37 toward the right, as viewed in Fi 2, which through its engagement with t e lug 41 will retract the latching bolt and permit the door to be opened.

While one form of the invention has been illustrated and described, it is obvious that those skilled in the art may vary the details of constructionas well as the arrangement of parts without departing from the spirit of the invention and therefore, it is not wished to be limited to the above disclosure except as may be required by the claims.

What is claimed is:

l. In a keyless lock, a locking bolt having a plurality of. legs each having a locking toe; and a plurality of permutation wheels associated with and controlling said bolt, each having an internal recess and an inwardly projecting annular flange adjacent thereto, each of said flanges being provided with a slot therethrough communicating with said recess through which one of said toes may pass.

2. In a keyless lock, a locking bolt having a plurality of depending L-shaped legs each having an upturned locking toe; and a plurality of permutation wheels associated with and controlling said bolt, each having an internal annular recess and an inwardly projecting annular flange adjacent thereto, each of said flanges being provided with a slot therethrough communicating with said recess through which one of said toes may ass.

p 3. A permutation wheel for keyless locks, comprising a disc-like portion and an inwardly flanged cylindrical portion extending laterally therefrom, said parts serving as inclosing walls for an internal annular recess, the flanged portion of said wheel having a radial slot therein extending from the exterior of said wheel to said recess.

4. A permutation wheel for keyless locks, comprising a lock-controlling member, a surrounding indicia-bearing member axially movable relatively thereto, and resilient retaining means interposed between the inner surface of said indicia-bearing member and the outer surface of said lock-controlling member normally but yieldably opposing such relative axial movement.

5. A permutation wheel for keyless locks, comprising a disc member and an indicia bearing member axially movable thereon;

and yielding means interposed between said` members for normally preventing relative axial movement between the two.

6. A permutation wheel for keyless locks, comprising a disc member having a circumferential groove anda plurality of axially extending ribs on its external periphery; an indicia bearing ring member having a circumferential groove and a plurality of axi- -ally extending recesses on its inner per1phery; and a resilient split ring member seated in said circumferential grooves, adapted to normally prevent relative axial movement between said disc and indicia bearing members.

'7. A permutation wheel for keylesslocks having a @plurality of circumferential grooves on its outer periphery, adapted to coact with a portion of a lock casing to provide tortuous passages therebetween to prevent the insertion of a lpicking instrument.

8. In a keyless lock, a plurality of permutation wheels having circumferential grooves on their outer peripheries adjacent the indicia bearing surf-aces; and a casing having portions entering said grooves, whereby tortuous passages are provided which prevent the insertion of a picking instrument adjacent said wheels.

9. In a lock construction, a locking bolt having a plurality of locking toes; a plurality of discs, each having a slot through which one of' said toes may pass only when the correct combination is set; a latching bolt associated with said locking bolt, adapted to be moved in one direction by said locking bolt when the latter is moved; and independent key controlled means for controlling the movement of said locking bolt.

l0. A combined key and keyless lock comprising a locking member and means whereby it may be retracted, a permutation mechanism preventing the retraction of said locking member except when its parts are set in a predetermined relation. and a key lock by which the retraction of said locking member by said retracting means may be prevented irrespective of the setting of said permutation mechanism, whereby the retraction of said locking member may be effected only as a result of the prior setting of the parts of said permutation mechanism and a prior releasing operation of said key lock.

11. A combined key and keyless lock comprising a spring latch, a manipulator whereby said latch may be retracted, a permutation mechanism to prevent .a retracting movement of said manipulator except when its parts have been set in a predetermined relation, and a key lock whereby a' retracting movement of said manipulator. may be prevented irrespective of the setting of the parts of said permutation mechanism, whereby said latch may be retracted only as a result of the conjoint sett-ing of the parts of said permutation mechanism and a releasing operation of said key lock, said latch being movable in one direction independently of' the movement of said manipulator, whereby it may be snapped into engaging relation with a keeper irrespective of the condition of other parts of said lock.

12. A permutation whe-el comprising, as a self-contained unit, a lock-controlling element and a setting element, relatively movable axially into assembled relation in any one of a number of different relative positions, means tending toprevent relative rotational movement of said parts when thus assembled, and resilient retaining means to yieldingly oppose relative axial movement, thereby tending to maintain said parts in any position in which assembled.

MEADE WILDRICK.

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