US699845A

US699845A - Combination-lock.

Info

Publication number: US699845A
Authority: US
Inventors: William H S Moore
Original assignee: Individual
Current assignee: Individual
Priority date: 1901-01-28
Filing date: 1901-01-28
Publication date: 1902-05-13
Anticipated expiration: 1919-05-13

Description

Patented May I3, |902.

W. H. S. MUORE.

COMBINATION LOCK.

(Application led Jan, 28, 1901.)

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No. 699,845. Patented May I3, |902.

W. H. S. MUORE.

COMBINATION LUCK.

(Application led Jan. 28, 1901.)

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TTED STATES PATENT OFFICE.

IVILLIAM H. S. MOORE, OF WEST CHICAGO, ILLINOIS.

COMBINATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 699,845, dated May 173, 1902. 4

` Apfnctnon ined January 28, 1901. serial No. 45,135. (No model.)

To @ZZ whom it may concern.:

Beit known that I, WILLIAM H. S. MOORE, a citizen of the UnitedStates, residing in West Chicago, in the county of Dupage and State ofIllinois,haveinventedcertain newand useful Improvements in Combination-Locks, whereof the following is a specification.

The object of my invention is the production of a simple and inexpensive rotary-tumbler combination-lock in which special security is attained by providing that the throwing back of the latch-bolt torelease the lock shall irregularly disarrangeY and destroy the combination, so as to prevent the reopening of the lock without the resetting of the combination.

My invention consists, primarily, in two or more rotary tumblers actuated by external graduated dials and a pivoted pawl adapted to pass entirely through the notches in the tumblers when the setting of the combination brings those notches into registry with each other and With the pawl, and, further, adapted to then permit such a movement of the bolt-actuating mechanism as shall release the latch-bolt and at the same time irregularly rotate two or more of the tumblers, so as to destroy the combination, but, nevertheless, permit the return of the said pawl to its original position. Y

In the preferable construction there is, in addition to the rotary external dials, an external knob connected with and moving a slide Within the lock, and this slide engages the latch-bolt and carries the pivoted paWl and also projections adapted to strike projections from the rotary tumblers in such manner as to rotate the tumblers and destroy the combination after the pivoted pawl has passed through the registered notches of the tumblers. As the slide moves from its original locked position a cam causes the pivoted paWl, carried by the slide, to rotate through an arc sufficient to pass the peripheral end of the pawl through the tumbler-notches that have been brought into registry by the setting of the combination. Until the combination is set the pawl by contact with the unnotched or falsely-notched periphery of the tumblers prevents the movement of the slide. After the pawl has passed through the tumbler-notches the slide is free to engage and release the latch-bolt and at the same time to strike and rotate the tumblers, as aforesaid. The slide may be returned to its original locked position either by means of springs or by hand movement of the external knob, according to Whether the mechanism is used as a spring-lock or as a deadlock. As the slide completes its return to the original locked position a simple spring or equivalent gravity action causes the pivoted paWl after clearing the periphery of the tumblers to fall back into position before the cam above mentioned,thusrelockin`g themechanism by presenting the free end of the pawl to the periphery of the tumblers, so as to prevent the movement of the pawl until the tumbler-notches are again brought in registry with it by the setting of the combination.

Concentric interlocking sleeves connect thev external graduated dials With their respective rotary tu mblers. n A screw or lock nut within the lock secures the set of concentric sleeves and graduated dials and permits their disconnection from the rotary tumblers for the purpose of attaching the lock to its support and of changing the combination on which the lock is set. By means of set-pins and pin-holes the graduated dials and concentric sleeves are adapted to engage and hold the rotary tumblers in various radially/dierent positions corresponding to radial graduations on the dials. Changing these positions of the tumblers changes the combination of the lock.

' Theinvention also consists in the novel conr struction of parts and devices and in the novel combination of parts and devices herein shown and described and more particularly pointed ont in the claims.

In the accompanying drawings, forming a part of this specification, Figure 1 is a front elevation of the lock as applied to a door or other support, showing the rotary graduated dials and the latch-knob. Fig. 2 is a rear View of the entire lock in locked position with the protective case removed. Fig. 3 is the same view as Fig. 2 exceptkthat Athe notches of the rotary tumblers are in registry with each other and with the pivoted pawl, so as to permit the latch-bolt to be thrown back. Fig. 4 is the same view as in Fig. 2 without the rotary tumblers and the shaft of the bolt ICO latch and showing in transverse section the concentric sleeves that connect the rotary tumblers with the graduated dials. Fig. 5 is a transverse sectional view through the line 5 5 of Fig. 2, but also showing the protective case of the lock. Fig. 6 is a side elevation of the mechanism on the line 6 of Fig. 3. Fig. 7 is the same view as Fig. 6 except that the parts are shown in the position they assume when the latch-bolt is completely thrown back. Fig. 8 is a side elevation of the mechanism along the line 8 8 of Fig. 2. Fig. 9 is an enlargement from Fig. 5, showing only the graduated dials and rotary tumblers and their connecting-sleeves, set-pins, and pin-holes. Fig. 10 is an enlarged perspective of the slide carrying the pivoted pawl.

vLike letters of reference indicate like parts in all the iigures.

A is the door or other support to which the lock is attached.

B is a stationary index-plate.

C is an outer rotary graduated dial actuating the rotary tumbler c.

D is a central rotary graduated dial actuating the rotary tumbler cl.

E is the latch-knob moving in the slot e and attached to the slide F. The slide F carries the pawl G, pivoted at g and controlled by,

the spring H. The projection h of the slide F engages the latch-bolt I at j. The springs J J return the latch-bolt and slide to thel locked position when the mechanism is used as a spring-lock, but are omitted when the mechanism is used as a dead-lock. The latchpin K, moving in the slot 7c of the protective case L, permits the latch to be drawn back to vopen the locked door from within.

As the slide F is moved forward by the latchknob E the pivoted pawl G is raised by the stationary cam M, and the movement of the slide is checked by the free end of the pivoted pawl coming in contact with the peripheries of the rotary tumblers c and d; but when the combination is set the free end of the pawl moving in the line o o passes entirely through the tumbler-notches O O' and leaves the slide F free to continue its movement and draw back the latch-bolt I to release the door A. As the slide F so continues its movement the projection P strikes the set-pinp in the tumbler c and the projection Q strikes the set-pin q in the tumbler d, and the respective tumblers are thus thrown in opposite directions and the combination disarranged and destroyed. As the slide F returns to its original position the pawl G, actuated by the spring II or by gravity, falls back behind the cam M as soon as the free end of the pawl G has cleared the peripheries of the rotary tumblers.

As an alternative construction the pivoted pawl may be stationary and the cam carried by the moving slide.

The tumblers c and d may be provided with numerous false notches :c as an additional safeguard against the sensiti'zing of the conibination.

A sleeve R extends from tumbler c through the doorA to the front of the lock, and a sleeve S from tumbler d fits within the sleeve R. A disk r is secured to the outer end of the sleeve R, and a lianged sleeve s is keyed into the outer end of the sleeve S, so as to bev freely removable therefrom. The disk fr is provided with a circle of pin-holes tt, into any one of which the set-pin T of the rotary dial C may be inserted, the rotation of the tumbler c being thus controlled by the rotation of the graduated dial C. Similarly the flanged sleeve s has its flange provided with a circle of pin-holes u u, into any one of which the set-pin U of the rotary dial D may be inserted, the rotation of the tumbler d being thus controlled by the rotation of the graduated dial D. The dial D is provided with a shaft V, passing through the sleeve S and provided at its inner end with a washer W and a lockscrew X. The removal of the screw X permits the dials D and C to be withdrawn from the lock for the purpose of inserting the setpins T and U into different holes of the disk r and flanged sleeve s, so as to change the relation of the tumbler-notches to the graduated dials, and thus change the combination on which the lock is set.

I claim l. The combination with rotary tumblers and a locking-bolt, of means for disarran ging the tumblers simultaneously with the retraction of the locking-bolt from its keeper, substantially as setforth.

2. In a combination-lock, the combination of rotary tumblers, actuated by rotary dials, a slide adapted to throw back the latch-bolt and simultaneously rotate the tumblers, and a pawl adapted to release both the slide and the tumblers after the tumbler-notches have been set in registry with the free end of such pawl, substantially as shown and described.

3. In a combination-lock, the combination of rotary tumblers, each provided with one or more tumbler-notches, each tumbler actuated by a rotary graduated dial, a slide carryin g a pivoted pawl, a stationary cam adapted to raise such pawl through the tumblernotches brought into registry with the free end of the pawl, a spring adapted to hold the pawl against the cam, a projection from the slide adapted to engage and throw back the latch-bolt of the lock, projections from the slide adapted to strike against projections from the rotary tumblers so as to irregularly rotate such tumblers, a latch-knob actuating the said slide, and means for changing the relation of the dials and tumblers in respect to the graduations on the dials, substantially as shown and described.

4. In a combination-lock, the combination of rotary tumblers actuated by rotary dials, means whereby the complete unlocking of the lock causes such rotation of the tumblers as loc to return them toalocked-positon,interlockdials to be set in various relations'to the ing concentric sleeves connecting the rotary notches of the rotary tumblers, substantially tumblers with the rotarydals, and a. series of pin-holes in the outer flanges of the said sleeves, such pin-holes being adapted to receive set-pins :fixed in the under faces of the dials so as to permit the gradufttions on the as shown and described.

WILLIAM l-I. S. MOORE. Witnesses:

HENRYLOVE CLARKE, R. S. NORMAN.