US766785A - Latch. - Google Patents

Description

D No. 766,785. PATENTED AUG. 2, 1904.

F. B. WILLIAMS.

LATCH.

APPLICATION FILED JULY 27, 1903.

NO MODEL.

UNITED STATES Patented August 2, 1904.

PATENT OFFICE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 766,785, dated August 2, 1909:.

Application filed July 27, 1903. Serial No. 167,088. (No model.)

T0 07.], whom it may concern.-

Be it known that I, FITZALLAN B. WIL- LIAMS, of Chicago, in the State of Illinois, have invented certain new and useful Improvements in Latches, of which the following is a specification.

This invention comprises a latch-plate and strike-plate designed to work together edge to edge or in the plane in which the plates are extended, and the latch is connected to permit it to work or vibrate in a plane parallel to its plate, but not in a direction lateral or trans- Verse thereto.

The device is intended for fastening the parts of folding beds, extension-table leaves, and the like which come together in the direction in which the latch or bolt is extended and in which it is desirable to secure the connected parts against both longitudinal separation and lateral displacement.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a top or plan View showing the parts as applied in use. Fig. 2 is a similar view, the latch being turned to one side as in disengagement with the strike-plate. Fig. 3 is a similar view, the plates being disengaged and the connected parts separated. Fig. 4 is section on the line I 4: of Fig. 1. Fig. 5 is a detail showing a bottom view of a detached part. Fig. 6 is a detail showing a bottom view of another detached part.

In the drawings, A is the latch-plate having a large central opening a, a projection to, supported over the opening and provided with a perpendicular pin a and a central projection a on its front edge. a

B is the latch or bolt, having a flat part 6 extending over the opening a and resting on the latch-plate, a pin-bolt I), a raised part 6 a beveled catch 6 extended perpendicular to that side of the latch adjacent to the latchplate, and a flange I). The latch-plate and latch.

the edge of the spring, so as to prevent the latch from falling off of the pin. By this arrangement of the parts the pin in the hole of the latch is made to furnish a more stable connection of the latch with the latch-plate than can be furnished by the spring with the pin when the spring is adapted to press the pin into a recess having an open side toward the spring. The spring is held in place by resting on the latch-plate across the opening a between shoulders 2 of a flange at the rear of the latch-plate and supporting the projection a.

C is the strike-plate, having a raised beveled lug 0, a recess 0 in the front edge, the lug projecting backward over the recess in a plane above the strike-plate, and oblique flanges c opposite to the lug.

The plates have screw-holes by means of which they may be attached to the article I), on which they are used.

In closing the central projection a passes into the recess 0 and under the backward extension of the lug c, and the beveled catch 6 passes between the flanges c springs by and back behind the lug c and the latch proper resting upon the top of said lug. The plates are thus held with their edges in contact by the engagement of the catch 5 with the lug c and secured against lateral displacement by the engagement of the backward extension of said lug which comes between the latch and the central projection a of the latch-plate, so as to prevent the latch-plate from being lifted above or the strike-plate from being depressed it below the same plane.

In opening, the latch is sprung over in either direction from the lug c, as seen in Fig. 2, the flanges 0 operating to prevent its going over too far should more than the necessary force be applied and to deflect it back to a central position, as seen in Fig. 3, with the square end against the springs.

When open the latch may be turned a quarter over in either direction to stay, as seen in dotted lines, Fig. 3.

What is claimed is 1. A latch-plate provided with a pivoted, spring-pressed latch extended parallel with jected toward the latch-plate, in combination with a strike-plate having a lug perpendicu:

lar to the face thereof provided with a backward extension above the latch -plate and adapted to engage the catch and latch-plate, as specified.

2. A latch-plate'having a central projection at its front edge, a pivoted spring-pressed latch extended parallel with the latch-plate. and a beveled catch on the latch projected toward the latch-plate, in combination with a strike-plate having a recess in its front edge adapted to receive the central projection of the latch-plate and a lug perpendicular to the face thereof with a backward extension over the recess, as specified.

3. The latch-plate provided with a central opening, a shouldered flange at the rear, and araisedpart projecting from the flange extended over the central opening and provided with an integral pin projecting toward the central opening, in combination with a latch provided with a pinhole, square end and flange, and a spring adapted to pass edgewise between the latch-flange and latch-plate and bear sidewise upon the square edge of the latch for connecting the parts, as specified.

i. The latch-plate provided with a pivoted, spring-pressed latch extended beyond the edge of the plate and provided with a beveled catch, projected toward the latch-plate, in combination with a strike-plate having a lug perpendicular to the face thereof and an oblique marginal flange or flanges arranged to leave a passageway for the catch between the flange and lug and to deflect the latch toward the center when being withdrawn, as specified.

5. A latch-plate provided with a springpressed, pivoted, parallel latch extended beyond the edge of the-plate and provided with a beveled catch projected toward the latchplate, a central projection of the plate extended toward the catch, in combination with a strike-plate provided with a recess in its front edge and a raised lug projecting backward over the recess, as specified.

FITZALLAN B. WILLIAMS. Witnesses:

ANNIE M. ADAMS, ARTHUR C. DAYTON.

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