US466008A - monroe - Google Patents

Description

(No Model.) t

G. W. MONROE.

LATOH.

N0.466,008. Patented Dec. 29, 1891.

us ca, Puma-Luna, wasnmcmu n c UNITED STATES PATENT OFFICE.

CHARLES MONROE, OF CLEVELAND, OHIO, ASSIGNOR TO \VILLIAM It,

' MONROE, OF SAME PLACE.

LATCH.

SPECIFICATION forming part of Letters Patent No. 466,008, dated December 29, 1891.

Application filed September 21, 1891. Serial No. 406,322. (No model.)

To all whom it may concern.-

Be it known that I, CHARLES W. MONROE, a citizen of the United States, and a resident of Cleveland, county of Ouyahoga, State of Ohio, have invented certain new and useful Improvements in Automatic Latch-Locks, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in automatic latches, and is-especially designed as an improvement upon Letters Patent granted to William R. Monroe, dated July 8, 1890, No. 431,752, in which a pivoted latch-bolt is used in connection with an actuating-spring and oppositely-beveled edges.

The present invention is designed to be operated upon without the spring, and is also accompanied by a locking device, which may be of the simplest possible character.

My invention consists in a vertically-moving latch with means for operating and securing the same in' the keeper, as hereinafter described, shown in the accompanying drawings, and more specifically pointed outin the claims.

In the accompanying drawings, Figure 1 is an elevation of front of latch-lock with the upper plate partially removed to show the working parts. Fig. 2 is a side elevation of the same. Fig. 3 is a front elevation of a modified form. Fig. at is a sectional view of an adjustable form of keeper. Fig. 5 is an end view of latch-case.

In the figures, A is the inclosing case of the latch.

B is the latch, which projects from the case at B and is shaped as shown in Fig. 2. The latch B works vertically within the case and is retained by suitable lugs b within the case. A strong spring 0 exerts continuous pressure upon the latch-bolt. D is the keeper, attached to the door-post and provided with the curve on the interior of the slot D. The curved outer surface of the bolt B engages the curved surface of the keeper, and by the continuous pressure of the spring 0 the parts are forced together and retained in contact even when the door is not tightly shut, the advantage of this construction being that no rebound of the door is possible when forcibly slammed. The pressure of the spring retains the bearing-surfaces so close together that no movement will be possible.

Various methods may be employed to operate the latchas shown in Fig. 1, a lever E, pivoted at e and extending in the form of a handle at E beyond the case. Apin E entering the slot B in the bolt, operates it up or down. A locking device worked by a key is shown, G being the bolt adapted to pass over the lug O on the latch. A tumbler H is raised by the key to release the bolt G, anda spring I returns it.

In Fig. 3 is shown a method for operating the latch-bolt by a knob, (shown in dotted lines,) the spindle J being in section. In this figure a lug K, integral with the spindle J, engages the latch and movesit in one direction, a lug upon the spindle J and boss M upon the latch-bolt preventing turning in the other direction.

In Fig. 4 is shown an adjustable form of keeper, in which D. is the keeper, provided with the plate 0 integral therewith, which is retained within the back plate 0 of the keeper. The lower portion below the keeper D has a double curved extremity R, adapted to rock upon the wood backing of the post 0 while the upper extremity is reduced in thickness and is movable behind the plate of thekeeper by means of the set-screw P, which bears both upon the post 0 and plate 0. An opening smaller than the head of the screw permits of its being turned with a screw-driver. I11 operation by means of this adjustment the relative position'of the surface D to the surface B of the latch may be easily adjusted to perfectly close the door when the latch is down, 0 which has heretofore been done more laboriously by scraps of pasteboard inserted, &c.

In Fig. 5 is seena modification of the original patent before mentioned in the preamble to William R. Monroe, showing a beveled or diagonal slot in the case, the object and function of which is the same as the double bevel upon the latch-bolt, as shown in that patent,

and avoids the work on the latch. In this figure, A is the latch-case; B the extremity of the latch; E the slot havinginclined walls.

What I claim, therefore, as new, and desire to secure by Letters Patent, is

1. The combination of a base plate with a detachable keeper provided with an integral base extending upwardly and downwardly behind thebase-plate, the lower portion of which is doubly curved, as described, and the upper portion is reduced and provided with an adjusting-screw, as and for the purpose set forth.

2. In an automatic latch, av bolt having a vertically-moving portion inclosed in a suitable case and having a horizontal latching end projecting from the case, the said end be- CHARLES WV. MONROE.

\Vitnesses:

WM. M. MONROE, E. C. GREEN.

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