US824652A - Lock. - Google Patents

Description

No. 824,652. PATENTED JUNE 26, 1906. J. HERZOG. LOOK.

APPLICATION FILED MAYM, 1905.

WITNESSES: NVE/VTOR W A) W UNITED STATES PATENT orrron.

JOHN HERZOG, OF SAGINAW, MICHIGAN, ASSIGNOR TO HERZOG ART FURNITURE 00., A CORPORATION OF MICHIGAN.

LOCK.

Specification of Letters Patent.

Iatented June 26, 1906.

Application filed May 24,1905. Serial No. 261,941.

To all whom, it may concern;

Be it known that I, J OI-IN HERZOG, a citizen of the United States of America, residing at Saginaw, in the county of Saginaw and State of Michigan, have invented certain new and useful Improvements in Locks, of which the following is such a full, clear, and eXact description as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming a part hereof.

The object of this invention is to provide a lock-case which will be one integral structure and which will be cheap and strong.

A minor object of the invention is to pro vide a lock which may be readily secured in position and which is particularly adapted for use in drawers, cabinets, and other articles of furniture.

These objects are attained in the device illustrated in the accompanying drawings, and the invention consists in certain novel features of the same, as will be hereinafter first fully described and then particularly pointed out in the claims.

In the drawings referred to, Figure 1 is a plan view of a blank struck from sheet metal and shaped so that when properly manipulated it will form the lock case. Fig. 2 is a perspective of the lock-case formed from the blank shown in Fig. 1, the bolt being indicated in dotted lines. Fig. 3 is a longitudinal horizontal section of the lock, taken in the plane of the keyhole. Fig. 4 is a longitudinal vertical section, and Fig. 5 is a transverse vertical section taken in the plane of the keyhole.

In carrying out my present invention I employ a blank 1, of sheet metal, having two branches or leaves 2 3, connected by a central transverse web 4. The side edges 5 6 of the branches project beyond the ends of the web 4, and the edges of the branch 2 are formed into teeth 7, the said branch being also formed with keyhole-slots 8 and with slits or narrow slots 9 near its upper and lower side edges and a short distance inward from its end edge, as clearly shown. The outer corners of the branch 3 are cut away, as indi cated at 10, and in the upper projecting edge I form small slots or openings 11 close together and near the inner corner of said edge. A tongue 12 is presented on the end edge of the branch 8 between the cut-away corners keyhole-slot 8 occupies in the branch 2.

The central web 4 is provided with an oblong slot 16 near its center and with small holes 17 near its ends, the said ends being preferably given a circular form. The lock case or shell is evolved from the blank in the following manner: The branches 2 3 are first folded into parallel planes by bending the blank on the lines a b, which constitute the side edges of the web 4. The upper and lower edges of the branch 3 are then folded or bent on the lines a c and b d, respectively, until they are at right angles to the main body of the branch at which time they will touch the branch 2 along the lines a c and I) f and constitute the top and bottom of the case or shell, the branches forming the sides and the web 4 forming the front end of the same. The tongue 12 is then bent on the line 0 d and the lugs 13 inserted through the slits 9 in the branch 2, the extremities of the lugs being bent or clenched against the outer face of the said branch 2, so as to prevent the separation of the branches. The upper and lower edges of the branch 2 are then bent over the top and bottom of the case along the lines a e and I) f and the teeth 7 turned outward at right angles along the central lines of the case, as will be readily understood. A key-centering pin 18 is secured in the perforation 15 and projects across the case to the keyhole 8.

In order to reinforce the front-end of the case, a wear-plate 19 may be riveted to the outer face of the web 4, the rivets being inserted through the openings 17. The bolt consists of a small bar 20, playing in the slots 14 and 16 and having smooth sides. The upper edge of the bolt is straight; but the lower edge is provided withanotch21, adapted to be engaged by the key in the operation of the lock. The lower edge of the bolt is also provided with stops 22 to limit the throw of the bolt, the stops being formed in the pres ent instance by making a second notch in the bolt in rear of the notch 21 and causing the ends of the said notch to impinge against the inner end of the case. The slots 14 and 16 are so relatively arranged that the lower end of the slot 145 is in a higher plane than the lower end of the slot 16, and consequently it will project upward between the stops 22 to act therewith in limiting the play of the bolt. A spring 23 has one end inserted through the slots 1 1, whereby it is secured and has its free end bearing upon the upper side of the bolt through the slot 14 to hold the bolt toward the lower end of the said slot and insure the engagement of the stops and the end of the case. In order to guard more certainly against the slipping of the bolt from the lock or its failure to properly engage with the key, a lug 24: may be formed on the edge of the bolt between the stops 22, thereby presenting supplemental notches 25, which will be thrown into engagement with the end of the slot 14 by the spring, so that in order to move the bolt it will be necessary to lift the same over the end of the slot against the tension of the spring. In order to accommodate the vibration of the bolt, the slot 14is made somewhat longer than the width of the bolt but the slot 16 is shorter and is only long enough to permit the bolt to move therethrough without avoidable friction. The lock is fitted in place by being driven into a mortise or seat prepared in the edge of the drawer or door and will be firmly held by the teeth 7 taking into the wood, as will be readily understood. Should additional security be deemed advisable, the wear-plate could be extended beyond the ends of the front end of the case and fastening devices driven through the ends of the same into the drawer or door. The shell is provided with two keyhole-slots having a circular end in common, so that the lock may be operated either vertically or horizontally; but in the drawings I have shown it in a horizontal position and have so described it for the sake of convenience. The edge portions 5 and 6 have a slight spring action or play upon each other, so that should the mortise not be cut to form a perfect fit for the lock the case will yield sufficiently to properly enter the mortise.

Having thus described my invention, what I claim and desire to secure by Letters Patent, is

1. A sheet-metal lock-case having its sides formed integral with its ends and having one side constructed to engage and be secured to the other side, the sides having their upper and lower edges bent inward and overlapping.

2. A sheet-metal lock-case having a front web provided with a bolt-slot, sides formed integral with the said web, a rear end formed integral with one side and engaging the other side and provided with a boltslot, and flanges on the sides forming the top and bottom of the case, one of the sides being provided with a keyhole-slot.

3. A sheet-metal lock-case having a front web provided with a slot for the lock-bolt, sides formed integral with the Web, one of the sides having a vertical slit, a tongue or back formed integral with the other side and having a lug arranged to engage said vertical slit, the said back having a slot for the lockbolt, and flanges on the sides extending inwardly and overlapping, the flanges on one of the sides being provided with teeth.

4. A blank for lock-cases having a central web provided with a longitudinally-disposed slot, leaves extending from the sides of the Web, one of said leaves having serrated edges, provided with slits near said edges and hav ing a keyhole-slot, and the other leaf having a pair of slots near the inner corner of one edge, having the outer corners of both edges cut away, having a slot near one cut-away portion, provided with lugs projecting from its end, and having a perforation in its main portion, said perforation occupying the same relative position as the keyhole-slot in the first-mentioned leaf.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

JOHN HERZOG.

Witnesses:

RUTH BENJAMIN, Tnno. F. GAENSBAUER.

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