US563061A

US563061A - Combination-lock

Info

Publication number: US563061A
Authority: US
Publication date: 1896-06-30
Anticipated expiration: 1913-06-30

Description

(No Model.)

E. P. PRICE. COMBINATION LOCK.

Patented June 30*, 18 96.

AN DREW BGRAHAM. PHOTOUTHOVWASHINGI'ON. D C

UNITED STATES PATENT OFFICE.

EDIVIN F. PRICE, OF \VASHINGTON COURT-HOUSE, OHIO.

COMBINATION-LOCK.

SPECIFICATION formingpart of Letters Patent No. 563,061, dated June 30, 1896.

Application filed January 27, 1896. Serial No. 577,042. (No model.)

To all whom it may concern:

Be it known that I, EDWIN F. PRICE, residing at \Vashington Court-House, in the county of Fayette and State of Ohio, have invented certain new and useful Improvements in Combin ation-Locks, of which the following is a specification.

My invention relates to improvements in combination-locks for show-cases and similar articles.

The features of my invention are more fully set forth in the description of the accompanying drawings, forming a part of this specification, in which- Figure 1 is an inside planview of the lock. Fig. 2 is a section on line 00 :0, Fig. 1. Fig. 3 is a section on lineyy, Fig. 1. Figs. 4 and5 are perspective views of the tumblers. Fig. 6 represents a modification of the connecting crank mechanism shown in Fig. 1.

1 2 3 4 5 represent the lock-tumblers journaled upon a rod a, which is supported in ears or lugs A, projecting from the frame-piece A.

13 represents a yoke-piece pivoted at Z) to the cars A.

0 represents a cross-bar secured at opposite ends to the yoke B and located above the tumblers, so that the yoke B can only drop or be depressed to retract the bolt when the tumblers have been brought to the proper position. v

D represents a spring-actuated bell-crank lever hinged at one end to cross-bar O by means of a link 0 and carrying at the opposite end the bolt or latch d.

The tumblers each consist of a hub from which project counterpart dogs E F, and also an actuating lever or key G. When set in the lock, the actuating-levers pass through openings 9 in the frame-piece, and thereby limit the rotary movement of the tumblers upon the rod 0. The actuating-levers also act as a weight-arm to hold the tumblers normally in the position shown in Fig. 2, from which position they may be moved by pressing the actuating-levers with the fingers, as shown in Fig. 3.

In the modification shown in Fig. 6 the cross-bar C is provided with a lug 13, pierced with a slot in which the crank-pin 14: of crank D engages so as to rock said crank when the cross-bar C gravitates with the yoke B, to which it is attached.

15 represents a crank-pin at the upper arm of crank D, engaging with a rod 12, which is adapted to operate the hasp or catch for looking either one or more drawers as the occasion may require.

Mode of operation: The tumblers normally rest in the position shown in Figs. 1 and 2,

6o tumblers

1, 2, and 4 being passive tumblers and resting normally out of the path of the cross-bar C, while tumblers 3 and 5 are active tumblers, resting normally in the path of the cross-bar and requiring to be moved out of the path of the cross-bar by the fingers of the operator, after which the yoke-frame can gravitate to the position shown in Fig. 3 to release the bolt.

Should an inexperienced operator press the actuating-levers of the passive tumblers or any one of them, they would be brought into position to dog the cross-bar C and prevent the opening of the case.

The tumblers are either active or passive, according to the position in which they are placed upon the rod a. Thus a tumbler placed upon the rod in the position Fig. 4 would be an active tumbler, but if reversed to the position shown in Fig. 5 would become a passive tumbler. The rod to can be readily removed and the several tumblers adjusted when desired to change the combination.

It will be seen that by lifting the lever or levers G of the active tumbler or tumblers, 8 5 through which the cross-bar O is normally supported, the said cross-bar will gravitate with the pivoted yoke B,thereby rocking the cranklever D so as to retract the latch or bolt.

Having described my invention, what I 0 claim is 1. In a lock, the combination with a bellcrank lever, of a pivotally-supported yoke having a cross-bar loosely connected with one arm of said bell-crank, and a series of tnm- 5 blers each provided with an actuating-lever and two dogs, one of said dogs being held, by gravity, normally in engagement or normally out of engagement with said cross-bar, depending upon the position or arrangement of the tumblers, substantially as described.

2. In a lock, the combination with a bolt or latch, and an actuating bell-crank lever, of a pivotally-supported yoke comprising a cross-bar in loose engagement with one arm of said bell-crank, and a series of tumblers each provided with an actuating-lever and two dogs, interchangeably mounted, and one of said dogs in each tumbler being held, by gravity, normally in engagement or normally out of engagement with said cross-bar, according to the position in which the said tumblers are arranged and Whereby,on actuation of the proper tumbler or tumblers, the yoke and cross-bar will be released and the bolt or latch retracted, substantially as described.

3. In a lock, the combination With a springpressed bell-crank lever, and a latch or bolt actuated by said lever, of a pivotally-supported yoke comprising a cross-bar in loose engagement with one arm of said bell-crank, and a series of interchangeably-arranged tumblers each provided with an actuatinglever and two dogs, one of said dogs in each tumbler being adapted to lock with, or be disengaged from, the cross-bar of the yoke according to the position of the tumbler or the movement imparted thereto, substantially as described.

In testimony whereof I have hereunto set my hand.

JOHN LOGAN, P. E. DEMPSEY.