US438188A

US438188A - russell

Info

Publication number: US438188A
Authority: US
Publication date: 1890-10-14
Anticipated expiration: 1907-10-14

Description

H. E. RUSSELL, Jr.

(Model.) 3 Sheets-Sheet 1.

MASTER KEY LOOK.

Patented 0ct. 14, 1890.

(Model.) 3 Sheets-Sheet 2.

HQE. RUSSELL, Jr. MASTER KEY LOOK.

No. 438,188. Patented Oct. 14, 1890.

I /e A ,2 17

VV/kn55525. 6/ vemaryv %I\\\%ML%Z 1;, W "JW' Q 77/4 nunms warms co, monmnwm, msmnm N n c 3 Sheets-Sheet 3.

Patented Oct. 14,1890.

(ModeL) H. E. RUSSELL, Jr. MASTER KEY LOCK.

1| I l H ll l B "I lmi l O [m 5 I [IE/5'6 3 5 l g If I A I 5 8 8 HENRY E. RUSSELL, J R., OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE RUSSELL & ERVIN MANUFACTURING COMPANY, OF SAME PLACE.

MASTER-KEY LOCK.

SPECIFICATION forming part of Letters Patent No. 438,188, dated October 14., 1890.

Application filed March 11, 1890. Serial No. 343,452. (ModeL) To all whom it may concern.-

Be it known that I, HENRY E. RUSSELL, J r., a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Master-Key Locks, of which the following is a specification.

My invention relates to improvements in master-key locks; and the objects of my improvement are to improve the convenience and general efficiency of the lock, and in particular to make a clear distinction between the master-key and individual keys.

In the accompanying drawings, Figure 1 is a front elevation of my lock with the capplate removed, the lock-bolt being thrown outwardly. Fig. 2 is a front elevation of a portion of the same with the lock-bolt withdrawn. Fig. 3 is a vertical section on line a; 00 of Fig. 1. Fig. at is a front elevation of one of the tumblers. Fig. 5 is a detached front elevation of the lock-bolt, and Fig. 6 is a front elevation of my lock in a somewhat modified form.

A designates the lock-bolt, the same being shown separatelyin Fig. 5, and it is provided with talons 7for being directly acted upon by the key, and also with talons 8 for being acted upon by the tumbler-locked key-actuated mechanism 9, mounted within the lock-cylinder 10, which is formed separately from the case and secured thereto, the interior mechanism and keys of which cylinder may be of any ordinary construction for this well-known class of looks. The hub or cam is locked by means of tumblers within the cylinder 10, which tumblers are released by the key, so that the key-actuated mechanism 9 is not merely moved by the key, but its tumblers are key-actuated preparatory to its movement in throwing the bolt. I also provide said lockbolt with aseries of tumblers B, having shoulders 11, for engagement of a stationary stud 12 on the lock-case to prevent the bolt from being withdrawn, except when the tumblers are properly lifted, all substantially as in or dinary locks having platetumblers acted upon by the direct action of the key, the tumblers, as usual, being provided with edge faces 13 to be acted upon by the wing of the key.

The bearing for one end of this key in Figs. 1, 2, and 3 is in the form of a socket 14, adapted to receive the-end of the stem of a solid key, while in Fig. 6 it is in the form of a pin 15, which is adapted for a drilled key.

The key-holes for application of the proper keys for the plate-tumblers and the key-actuated mechanism are both on the same side of the lock-case.

In the preferred form I operatively connect the tumblers B with the key-actuated mechanism 9 by having one of the tumblers 16 provided with a carrier 17, which is rigidly attached to said tumbler, and upon the upper face of which carrier all of the other tumblers rest. The lower part of this carrier 17 lies within the space between the talons 8 8, whereby whenever the key-actuated mechanism 9 is released and revolved by the application of a proper key it engages said carrier 17 and lifts all of the tumblers B, so that it may throw the bolt. When a key is applied to act upon the talons 7 7, the tumblers are lifted by the direct action of the key. Thus it will be seen that the bolt may be thrown either by the application of a key which acts directly upon the tumblers and lock-bolt or by the application of a key to release and act upon the key-actuated mechanism, and these two keys will ordinarily be very different in form and construction, and either one of them may be made a master-key, so as to operate a given number of locks,while the other may be made a change key or individualkey capable of operating only the particular lock for which it was designed.

In Fig. 6, instead of making the carrier integral with one of the tumblers, I make the carrier 17 of a separate piece and pivot it to the lock-bolt at 18. As in the construction first described, its lower part rests between the talons 8 8, and all of the tumblers rest upon its upper edge, said edge in Fig. 6 being designated 19, whereby Whenever the keyactuated mechanism 9 is operated to throw the bolt all of the tumblers in the series B will be properly lifted.

I claim as my invention- 1. The combination of a case, a series of mo plate-tumblers adapted to be acted upon by for a key-actuated mechanism, in combine the direct application of a key, a cylinder tion with a key-actuated mechanism, and a formed separately from the lock-case, a set of carrier adapted to be operated by said keytumblersand key-actuated mechanism monnt- I actuating mechanism for operating the tum- 15 5 ed Within said cylinder, and a lock-bolt, the blers, substantially as described, and for the plate-tumblers and key-actuated mechanism purpose specified.

both bein 'accessible to the proper keys from the same side of the lock-case, substantially HENRY RUSSELL as described, and for the purpose specified. Vitnesses:

1o 2. A lock-bolt having talons and tumblers THOS. S. BISHOP,

for the direct application of a key and talons M. S. WIARD.