US339644A - Daniel f - Google Patents

Description

(Model.) v

D. P. HAASZ.

LOGKe No. 339,644. Patented Apr. 13. 1886;

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QP'IPICATION forming part f Letters Patent No. 339,644, dated April 13, 1886.

Application filed January 27, 1886. Serial No. 189,885. (Model.)

.'[b all whom it 11m/y ewzfcern:

Beit known that I, DANIEL F. Hansa, a citizen of the United States, and a resident of the city and county of Philadelphia, and State of Pennsylvania, have invented certain new and useful Improvements in Looks, of which the following is a specification.

The object of my invention is to furnish a lock which will be simple, inexpensive, and

secure.

In the accompanying drawings, forming partof this specification, and in which similar letters of reference indicate similar parts throughout the several views, Figure l is a side view of my look as arranged for the door of a house; Fig. 2, a section of Fig. l on the line .r Fig. 3, an end View 'of top of lever I, for operating bolt in lock shown in Fig. l; Fig. A, a front view of my look as arranged for a safe; Fig. 5, a section of Fig. 4 on line y y; Fig. (i, a plan of lever for raising the key in the sal'cllock; Fig. 7, a section through key-guide on line a' z, Fig. 5; and Fig. S, a modified device for raising the key.

A is the bolt; I3, the tuinblers; C, partitions dividing the tumblers from each other; E, pivot upon which tnmblers are hung; F, case or box surrounding the works.

In Figs. 1 and 2, which represent front and sectional elevations of a look for front doors of dwelling-houses, die., the bolt A is thrown into its keeper by a spring, G, which may be arranged in any convenient manner. The tumblers B when not raised by the key are in the position shown in Fig. I by the full lines-that is, they lie along the top of the bolt A. The bottom part of the tunihlers may be perfectly straight, or, in order to make it more difficult to raise them, they may be ont out, as shown in Fig. I by the dotted lines. IVhen cut away in this manner, great care has to be taken in raising them, for if the key is turned too much the tuinblers fall by gravity and prevent the bolt from being shot back.

II is the knob-spindle, upon which is the knob of the lock. This knobspindle carries an arm, I, which extends to the top of bolt A, and is bent over, as shown in Fig. 3, so as to extend across the top of this bolt.

K is a slot in the side of bolt A, through which the arm I passes.

The front ends of the tumblers B are bev-v eled off, as shown in Fig. l, and the upper part, .I, of the arm I is furnished with a corresponding bevel. iVhen the tumblers are down, it is impossible to turn the bolt A by turning the knob on the knob-spindle H, for the arm I, before it can reach the rear end of slot K in bolt A, strikes against the tumblers B, and is prevented by them from moving any more in this direction. I'Vheu the tnniblers are raised by the key so as to clear the top J of arm I, said arm will strike the rear side of slot K, and will force the bolt A back.

The object of beveling off the front ends of the tumblers B, and the rear part, J, of arm I is to render it more diflioult to pick the lock, for if one tumbler is raised and is held up by arm I, another cannot be raised without causing the first tumbler to fall.

In order to open the lock from the inside of the door without using the key to raise the tumblers, I use a slide or lever, L, which may be pushed up to raise the tumblers.

The forni of the look which I propose to use for safes is shown in Figs. 4 and 5. In this ease the bolt has no spring to throw it into the keepers, and instead of the arm I upon the knob-spindle engaging the tuinblers, the bolt is formed with a shoulder, which abuts against said tn mblers. The key is exoeedingl y thin, and is not turned in order to raise the tnmblers, but it is raised vertically by suitable mechanism and lifts the tumblers up. The tumblers are similar to those already described, and their number may be varied at will.

In Figs. 4 and 5 alever is shown for raising the key. The key is run into vthe key-hole and its bottom rests upon the top of the arm or arms N, which are carried by a rod, O, which is held in snit-able journals in the lookoase. One end of the rod O passes through the door of the safe, and is furnished with a knob, P, by turning which the arms N may be raised to raise the key. Tho key while being raised is guided by the key-hole and by a Slot, a, which is formed by bolting three plates b., o, and d, F ig. 7, together. The key u-pon heilig raised straight up raises the tumblers clear of the dog on the bolt A, and by turning the knob P the arm I draws the bolt A out of its keepers.

Instead of the lever described. above for raising the key, a slide or wedge, S, Fig. 8, andthe rear end of saidbentvtop J beingbevmay be inserted in the key-hole under the eled off, all substantially as and for the purkey, to raise the key and the tumblers. poses set forth.

As is usual in safe looks, the Works may be 2. The combination, in alock, of the bolt A, I5.' 5 surrounded with hardened steel plates, so as tmnblers B, guide a, rod O, with arms N, arm

to prevent them being bored into. I, and the key, all Substantially as and for the Having thus described my invention, I purposes set forth. claim- D. F. HAASZ.

l. The combination, inznlock, of the bolt A, Vitnesses: Io tumblers B, knob-spindle H, and arm I with OTIS EGAN,

bent top J, the front ends of said tumblers l CHAs. A. BUTTER.

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