US524594A - Albeet iske - Google Patents

Description

(No Model.)

A. ISKE.

LATCH.

No. 524,594. Patented Aug. 14, 1894.

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UNITED STATES PATENT OFFIC.

ALBERT ISKE, OF LANCASTER, PENNSYLVANIA, ASSIGNOR TO DULON F. BUCHMILLER, SAME PLACE.

LATCH.v

SPECIFICATION forming part of Letters Patent No. 524,594, dated August 14, 1894.

Application led November 15, 1 89S. Serial No. 491,022. (No model.)

`To @ZZ whom it may concern:

Be it known that I, ALBERT IsKE, a citizen of the United States, residing at Lancaster', in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Latches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in a closet or door-latch of that class in which a hook, a spring, and a rod are so arranged, combined and secured in place that the hook will engage a fixed catch, the spring hold it engaged, and the rod open the same.

The obj ect of the invention is the construction of a simple and eective latch specially designed for use in holding a cupboard or closet door closed, and that may be readily disengaged from its catch by the same pull, upon the knob or handle, which is used to open said door. Latches for this purpose, constructed after the slide-bolt pattern, and a cupboard-catch, patented September 21, 1886, No. 349,671, are well known to the trade, but in which a turn or push on the knob or handle is required to release the door, and a pull thereon to open the same, while in this invention these two functions are performed at one operation, a simple pnll upon a knob orhandle.

The purposes of the invention are'attained by the mechanism illustrated in the accompanying drawings, in which similar letters of reference designate like parts throughout the several views.

Figure 1l is a front elevation of a hinged closet door showing a latch embodying the elements of the invention in position; Fig. 2, a view, from above, of the portion below the line o; m in Fig. 1; Fig. 3, a view, from the right, of the portion to the left of the line y y in Fig. 1; Fig. 4, an inside elevation of a portion of Fig. 1, showing the latch and catch in position, and Fig. 5, a detached plan of the latch frame, the supporting plate appearing in horizontal section.

The latch frame (Fig. 5) consists of a supporting plate A having an outwardly projecting dome A', and an inwardly projecting arm A2, all integrally made as one casting. The

dome is made hollow to form a recess a to receive an end of a coiled spring, and in its center is an orifice a to permit the passage of the actuating rod; the arm is made hollow above and below to reduce weight, and in its inner end is a vertical U-cut forming two prongs a2 a2 provided with a horizontal pivot pin a3 for pivoting thereto the latch-hook; and the plate is provided with orifices a4 through which screws a5 serve to secure itin place (Figs. 1, 2 and 3).

The latch-hook is an angle lever B, somewhat Llshaped,having two arms b and b', the former perpendicularly, and the latter horizontally, disposed, and it is pivoted, through the angle, between the prongs a2, to the forward end of the arm A2 (Figs.2 and 3). The arm b', having a prescribed length, has its forward end downwardly and rearwardly sloping so as to move easily up the forward edge of a xed catch-hook yet to be described, and its under edge provided with a hooknotch h2, slightly under-cut, to engage said catch-hook; and the arm b, considerably shorter than the arm b', which it must be to lift said arm b quickly, has its upper end, a little forward of the vertical center line of the latch pivot, provided with an orifice b3 to pivotally receive a projecting pin from the side of the forward end of the actuating rod yet to be described.

Extending through the orificea of the having its inner endo dattened on one side to bear against the side of the vertical leverarm b, while a rounded pin c projecting from said fiat side and passing through the orifice bof the arm serves to pivot said rod-end to said lever-arm; on the body of the rod is placed a coiled spring C', having one end within the recess a of the dome resting against its wall, and the other end, against pins or lugs c2 projecting from the sides of the rod, the resiliency of the spring serving to keep said rod pressed inward; and, the outer end of the rod is provided with a handle or knob c3, pressing against the dome to stop the inward action of the spring, to withdraw the rod, to disengage the latch, and to open the door.

D designates a hook-catch, so placed and ICQ secured inposition tothe body, or a she1f',ot` L a cupboard or closet, so that it may bereadily engaged by the latch-hook when the door or portion havingthe attached latch is closed.

Now the several parts having been placed in the several positions indicated in the drawings, and secured in place, an inspection of Fig. 3 clearly shows: first, that the spring C acting inward on the rod will keep the latch in engagement with the catch and the door,

or portion, securely closed; second, that a pully on the knob c3, in the direction of the arrow l, will lift the latch-hookA in the direc-tionlrot the arrow 2 from the catch, when said dooro'r portion by the same pull, continued, will be l readily opened.

Having now` described the invention and set forth the manner in which itis performed, what I do consider new, and desire to secure by'Letters Patent, is-

The herein described latch comprising: the

`iplateA with the domeA having the recess a and thecentral orifice a', and the arm A2 with the two inner end prongs a2 and a2 having the horizontal pivot pin a; the angle 1ever B with the arms b and b having the hooknotch b2 and the pivot-ori tice b3; the actuating rod C with the ilat inner end side having the pivot-pin c', the side projecting pins c2 and c2, and the outer end knob c3, and the spring C; and the hook-catch D,-ali arranged, coinbined, and secured in position as shown and for the purpose hereinbefore set forth.

In testimony whereof I aix my signature in presence of two witnesses.

ALBERT ISKE.

Witnesses:

EDWIN -BooKMvER, CHAs. Q. BOOKMYER.

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