US591751A - Door-check - Google Patents

Description

(No Model.)

F. G. FISHER.

DOOR CHECK. No. 591,751. Patented Oct. 12,1897.

g mme m WITNESSES g0 I L Arron/m8.

Tu: Nouns mzns co. Moro-urns. wunmsrou, n c

UNITED STATES PATENT OFFICE.

FRANKLIN CROSBY FISHER, OF CASCADE, COLORADO.

DOOR-CHECK.

SPECIFICATION forming part of Letters Patent N 0. 591,751, dated October 12, 1897.

Application filed December 5, 1896. Serial No. 614,525. (No model.)

1'0 (all whom it may concern.-

Be it known that I, FRANKLIN CROSBY FISHER, of Cascade Canon, in the county of El Paso and State of Colorado, have invented a new and Improved Door-Check, of which the following is a full, clear, and exact de- Scription.

The object of the invention is to provide a superior latch for doors and gates of all classes in which it is necessary to keep the door or gate in position againstan ordinary force.

The invention embodies devices both for keeping the door or gate closed or for holding the same open; and it consists in two members, one of which is formed of a curved steel or other spring plate, one end of which is adapted to engage the second member which is formed of a plate bent to have a round side. This round side may or may not have a shoulder or plane portion to be engaged by the free end of the spring-plate.

The invention will be fully described hereinafter and defined in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a fragmentary side elevation of a door and frame having my invention applied thereto. Fig. 2 is a sectional view on the line II II of'Fig. 1. Fig. 8 is a similar view of an arrangement in which the position of the spring-plate is reversed. Fig. 4 is a sectional view of a modification of the invention, whereby it is particularly adapted to gates and doors swinging two ways. Fig. 5 is a fragmentary elevation of the device used as a door-stop, and Fig. 6 is a sectional view on the line VI VI of Fig. 5f

Referring to Figs. 1 and 2, the door 7 is hinged to swing only in the direction of the arrow in Fig. 2. The door frame or jamb 8 is provided with a clip 9, holding the springplate 10 rigidly to the jamb at a point adjacent to the knob 11 of the door. The plate 10 is extended horizontally and has its inner or free end curved to form a bow a. The free end of this bow engages the plate 12, which has one end screwed or otherwise secured to the door 7 on the side opposite the knob 11, and which is extended around and into a recess 13in the door. The plate 12 is shaped with an approximately plane portion 2), against which the free end of the bow at of the plate 10 is adapted to hear when the door is in the closed position, as shown in Figs. 1 and 2.

In operating a door provided with this device, the door may be dra-wn in the direction of the arrow in Fig. 2, causing the plate 12 to move against the plate 10. The plate 10 will be forced outwardly until it springs past the plane portion b of the plate 12 and the door 7 freed. When the door is returned, the resiliency of the plate 10 forces the free end of the plate into engagement with the plane portion 1) of the plate 12, so as to hold the door closed.

It is obvious that the plate 12 need not be provided with the plane portion 17. The free end of the plate 10 could be arranged to bear against the plate 12 atone side of the center of its bend, and by these means to hold the door closed as effectually as with the plane portion b.

In Fig. 3 the door 7 swings only in the direction of the arrow in the figure. The plate 10 is held to the door and on the side opposite the knob ll. The bowed portion a of the plate 10 bears, as in Fig. 2, against the plane portion b of the plate 12*". The plate 12 is secured to the door-jamb 8 and extends into a recess 13 in the door-jamb. It will be seen that in this form the position of the parts is simply reversed. The construction is entirely the same.

In Fig. 4 the 'door or gate 14 is mounted to swing either Way and has a recess 15, in which a rigid plate 16 is held. The rigid plate 16 is bowed to describe a continuous curve and is not broken by a plane portion, as in Figs. 2 and 3. The two spring-plates 17 are duplicates in construction and are respectively held on the sides of the door-jamb 18 by clips 19, such as have been heretofore described. The bowed portions 0 of the spring-plates 17 are disposed oppositely to each other, and the free ends of the plates 17 extend into the recess 15 and respectively engage with the curved portion of the plate 16 on opposite sides of the center of the bend. It will thus be seen that the door or gate is held securely against ordinary pressure and that by pushing the door it may move freely in either direction. If the door be moved in one direction, the plate 17 against which it moves will be forced to spring past the plate 16, while the remaining plate 17 is left in its normal position. The plate 17, which has-been moved by the swinging of the door, will return by its resiliency to its normal position.

Figs. 5 and 6 show the invention adapted for holding open a door or gate. In this use the door or gate 20 carries at its upper edge a plate 21, which is curved upwardly and thence downwardly. Fastened to the wall 22 or to any other suitable support and preferably through the medium of a block 23 is a spring-plate 24:, the lower portion of which is formed with a bow d, arranged to engage at its lower end with the plate 21 at a point at one side of the center of the bend therein. By these means the door 20 is held open, and upon the moving of the door to a closed position the plate 21 will force the plate 24= to move sidewise, so as to release the door, after which the plate 24 will return to its normal position.

From the above description it will be seen that the invention may be used in many ways and that its essentialities are the spring-plate arranged to engage at its end edge with abent plate or member, the two parts being respectively carried by the devices in connection I with which the latch is used.

The free ends of spring- tongues 10, 10 17, and 24 being cut square have sharp edges which serve to eifect a serviceable impingement against the rigid plates with which the respective tongues coact.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent- 1. The combination with a door and its jamb, said door being mounted to swing in two directions, of a bent plate secured to the door, and spring-plates respectively secured to the sides of the jamb, the spring-plates each having a free end contiguous to a bowed portion, and said free ends respectivelybearing on the bent plate at opposite sides of the middle'thereof, whereby the door is normally held closed and whereby the door is permitted to swing in each direction upon preponderating the force of the spring-plate against which the door moves, substantially as described.

2. The combination of a fixed and a hinged part, the hinged part swinging toward and from the fixed part, a spring-plate, and a rigid member respectively carried on the said parts, the rigid member having an unbroken convex face and the spring-tongue having a free end with a sharp edge capable of engaging the convex face of the rigid member'and of impinging against the same.

FRANKLIN CROSBY FISHER.

WVitnesses:

WILLIAM H. COFFIN, J r., A. D. FLYNN.

Images