US469398A

US469398A - Lock-strike

Info

Publication number: US469398A
Authority: US
Publication date: 1892-02-23
Anticipated expiration: 1909-02-23

Description

(No Model.)

J. A. BURNS.

LOOK STRIKE. No. 469,398.

Patented Feb. 23, 1892.

INVENTORY WITNESSES.

UNTTE STATES PATENT @FFIC i JAMES A. BURNS, OF HOMESTEAD, PENNSYLVANIA.

LOCK-STRIKE.

SPECIFICATION forming part of Letters Patent No. 469,398, dated February 23, 1892. Application filed November '7, I891. Serial No. 411,168. (No model.)

To all whom it may concern.-

Be it known that I, JAMES A. BURNS, of Homestead, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Strikes for Locks and Bolts, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view of my improved lockstrike, and Fig. 2 is a vertical longitudinal section on the line II II of Fig. 1.

Like symbols of reference indicate like parts in each.

In keepers or strikes for looks and bolts as heretofore commonly constructed it has been usual to provide for securing the strike in place at the end of thelock in one oftwo wayseither to fasten it with screws which pass through the strike and whose heads bear against the top plate of the strike or to form the base of the strike with one or more outwardly-projecting marginal flanges having screw-holes and to set the screws in these holes. The first named of these constructions is faulty, because the screws within the strike take up room and often interfere with the shooting of the latch or bolt, making it difficult to set-the strike symmetrically with relation to the lock or bolt case. The second construction is also defective for a similar reason, for if the strike is not made longer than the width of the lock or bolt case, which would be awkward in appearance, the length of the strike proper must be less than such width by the width of the flanges, thus unduly contracting the space aifo'rded for the latch or bolt.

The advantage of my improvement hereinafter described is that without spoiling the appearance of the strike by making it wider than the lock-case or making the lock-case of extra width to conform to the strike all the space in the keeper is made available as latch or bolt room, a neat appearance is presented, and the strike is held firmly in position. The construction by which these desirable results are effected consists in forming at the base of the strike an inwardly-projecting marginal flange or flanges having holes for screws by which the strike is held, and, when necessary, the top plate of the strike is provide-d with holes of snfficientsize to permit the introduction of the screws and the passage of the heads, which, when screwed home, are to rest upon the marginal flanges at the base.

In the drawings, 2 represents the strike, having a top plate 3 and having flanges 4 projecting inwardly from its opposite ends. Screwholes 5 are formed in these flanges, and larger holes 6, opposite thereto, are formed in the top plate. When the strike is set in position, the flanges at the base are sunk somewhat in the wood, as shown in Fig. 2, the screws are inserted through the larger holes 6, and are screwed through the holes 5 into the Wood, the screw-head passing through the larger holes and the screw being forced home until the heads engage the flanges. In order to determine the extent to which the flanges 4 need be sunk in the wood, I provide a peripheral bead or flange 7 on the outside of the strike and adapted to engage and to seat against the wood.

The advantages of my improvement as thus constructed are numerous. The strike is neat in appearance, it is held in place very seen rely, and the absence of any interior obstruction makes it capacious and well adapted to receive the bolt and latch.

Modifications in form and construction of the parts maybe made Without variancefrom the principles of my invention.

I claim A strike for looks or bolts, having an inwardly-projecting bottom flange with screwholes and having a top plate provided with holes opposite to the flan ge-holes and of larger diameter to permit passage through them of the screws and their heads, substantially as described.

In testimony whereof I have hereunto set my hand this 5th day of November, A. D. 1891.

' JAMES A. BURNS. Witnesses:

W. B. OORWIN, H. M. CORWIN.