US256723A - Drawer look - Google Patents

Description

(Model.)

P. W. MIX

DRAWER LO'GK.

No. 256,723. Patented Apr. 18,1882.

7-. S .w m m WITNESSES Uis'rrfea STATES PATENT OFFICE.

FRANK W. MIX, OF TERRYVILLE, CONNECTICUT, ASSIGNOR TO THE EAGLE LOCK COMPANY, OF SAME PLACE.

DRAWER-LOCK.

SPECIFICATION formingpart of Letters Patent No. 256,723, dated April 18, 1882,

Application filed January 6, 18-32. (Model) To all whom it may concern Be it known that I, FRANK W. MIX, of Terryville, in the county of Litchfield and State of Connecticut, have invented a new and useful Improvement in Drawer-Locks, of which the following is a full,clear, and exact description.

The object of my invention is to provide for projecting the bolt without requiring the key of the lock; and the invention consists in a turning sleeve combined with the lock mechanism, as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in w hich similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a front view of a lock provided with my improvement and fitted to a drawer. Fig.2 is aface viewof thelock with the drawerfront and escutcheon removed. Fig. 3 is a sectional front view, showing the interior. Fig. 4 is a side view with the case partially broken away, and Fig. 5 is a perspective view of the locking-sleeve.

A is the back plate of the look. a is the 2 5 front plate, attached to form a case for the work, and formed with a cylinder, 1), that receives the turning-post 0, these parts and the tumblers e, by which the post 0 is locked when the bolt d is projected, being of usual construction.

On the outer face of plate a is a strip or piece, f, attached by a screw, 9, that passes through a slot into the plate, so that the piece f may slide. The upper end of the slide-piece 5 ftakes upon a pin, it, that projects from bolt d through a slot in plate a, so that the bolt and slide shall move together, and the slide f is formed at one side with lugs c i, that extend close to cylinder b.

C is the locking-sleeve, fitting snugly upon cylinder 1), and formed with notches k on its I inner end, that engage the lugs 11 of the slide, and also formed at its outer end with spurs or pointers It It, which lie against the escutcheonplatelwhen the lock is fittcd,as shown in Fig. 5 1. These pointers indicate the position of the bolt, and are also for usein turning the sleeve by hand. The sleeve 0 is applied from the front after the lock is attached,and is retained by a pivoted catch, m, which is forced into engagement with a groove, 42, in sleeve C by a screw, 0, in the back plate, A. (See Fig. 4.)

By this construction the sleeve C is partially turned on cylinder 1) by its engagement with slidef when the bolt is moved in the usual manner by the key. When the bolt is Withdrawn it may be projected by turning the sleeve with the hand, so that the key is not required for locking the drawer, but the key is required for unlocking.

This device is simple and inexpensive, and corrects the practice of leaving the keyin the look after unlocking.

Having thus fully described my invention, I claim as new and desire to secure byLetters 65 Patent- 1. A look in which its bolt is projected bya sleeve fitting upon the lock-cylinder and engaging with a slide connected to the said bolt, substantially as herein shown and described.

2. The notched sleeve C and slotted slide f, provided with the lugs i, combined with the cylinder 1) and bolt 01 of a lock, substantially as and for the purposes set forth.

3. In a lock, the pivoted catch at and screw 7 5 0, in combination with locking-cylinder C, substantially as and for the purposes set forth.

FRANK W. MIX.

Witnesses:

JASON 0. FENN, HENRY B. PLUMB.

Images