US365224A

US365224A - Door-check

Info

Publication number: US365224A
Authority: US
Publication date: 1887-06-21
Anticipated expiration: 1904-06-21

Description

s. BARLOW.

DOOR CHECK.

No. 365,224. Patented June 21, 1887.

UNITED STATES PATENT OFFICE.

\VARREN S. BARLO\V, OF PATERSON, NE\V JERSEY.

DOOR-CHECK.

SPECIFICATION forming part of Letters Patent No. 365,224, dated June 21, 1887.

Application filed April 13, 1857. Serial No. 231,584. (No model.)

To all whom it may concern.-

Be it known that I, \VARREN S. BARLOW, of Paterson, in the county of Passaic and State of New Jersey, have invented a new and useful Improvement in DoorOhecks, of which the following is a specification.

Theol'ijcctofmy invention isto provideasimple and inexpensive spring device which may be applied to a door-casing, and which, by the impact and sliding of the edge of thedoor when closed over a free arm of the spring, will check and soften the closing of the door under the influence of the closing-spring which is applied to it.

My improved check consists, essentially, of a piece of spring metal, which is bent so as to form a bow or curve, and two arms extending in approximately the same direction. Th rough one ofthesc arms the check is secured to a door-casing, and the edge of the door in closing bears upon and deflects the other arm. The arm on which the doorbears may have on its end a projecting and outwardly-turned lip against which the doorstrikes as it completely closes, and which prevents the end of the spring from ever being caught by the door and being bent backward as the door is opened. I provide a knee or bracket having flanges extending at right angles to each other, and whereby the spring may be attached to the door-casing, one flange ol' the knee or bracket being formed with slots for the reception of screws, whereby the knee or bracket is socured to the casing, and the other flange being formed with a slot for the reception of a bolt, whereby the arm of the spring is secured to the knee or bracket. The slots in the knee or bracket provide both for the adjustment of the springlatcrally, so that the door in closing will bear upon it with more or less force, and for the adjustment of the spring inward and outward from the casing in a plane at right angles to the plane of the door, so as to adapt the device for doors of difl'crent thicknesses, and so that the lip upon the free arm of the spring will be brought to the proper position.

In the accompanying drawings, Figure 1 is a horizontal section ol'a portion of a door-casing and door, showing my check as applied thereto and the door as having just come to a bearing upon the check in the act of closing. Fig. 2 is a corresponding view showing the door as fully closed. Fig. 3 is a perspective view of the door check; and Fig. 4 is a view similar to Fig. 1, illustrating a slight modification of my invention.

Similar letters of reference designate corre sponding parts in all the figures.

A designates a portion of the casing, and B designates a portion of the door which closes into the casing. The bent spring 0, which constitutes the essential element of my doorcheck, may be of steel or brass, of the desired width, and comprises a bow or curve, 0, and arms 0 0 Through the arm 0 the spring is attached to the door-casing A, said arm being in Figs. 1, 2, and 3 secured to the inner flange of a knee or bracket, D, and the other flange of this knee or bracket is secured by screws to the door-casing A. \Vhen secured in place, as shown in Figs. 1 and 2, the arm c of the spring projects somewhat in the path of the door B, so that the edge of the door in closing bears against the arm 0, and is retarded or checked by the resistance which the springarm offers to lateral deflection. \Vhen the door is fully closed the spring arm 0 lies between the edge of the door and the casing A, as is shown in Fig. 2.

To vary the strength of the door-check, so that it will offer more or less resistance to the closing of the door, as may be desired, I have represented the knee or bracket 1) as pro vided in one ilangc or member with slots (1,- which receive screws, whereby the knee or bracket is secured to the door-casing, and which provide for the adjustment of the knee or bracket laterally toward and from the edge of the door-casing, so that the arm 0 of the spring will be obtrudcd more or less in the way of the door, and its effect in checking thedoor will be more or less increased or diminished.

I have shown the arm a as terminating in a lip, 0, against which the door bears when it comes to a closed position, and this lip prevents the edge of the door from catching on the end of the spring-arm c and bending it backward when the door is opened, as it might otherwise do. \Vhcn the spring is provided with a lip, c, it is necessary to adjust it to suit different depths of casings and different thickncsses of doors. I have shown the arm 0 of the spring as secured by a bolt, 0, to the knee or bracket D; and, as best shown in Fig. 3, the

knee or bracket has in it a slot, (1, which receives this bolt, and which provides for the adjustment of the arm inward and outward from the plane of the casing, so as to bring the lip a into a position suited to the thickness of door and the depth of easing. I have shown the knee or bracket D as recessed or channeled upon its outer face, or as provided with lips or flanges e,receiving between them the springarm as shown in Fig. 3, and I have shown this flange of the knee or bracket as having upon its inner face ribs cl, between which is received the nut 0 upon the bolt 6. Convenience is thus afforded for readily assembling the parts of the device and providing for the ready adjustment of the spring;

The modified form of door'check shown in Fig. 4 is somewhat simpler than that before described. In this case the spring 0 also consists of a bow or curve, 0, and arms 0 0 but the arm 0 is held to the casing by means of a clamp, D, beneath which it is introduced, and which may be secured by screws cl" to the easing. The arm 0 may be adjusted beneath the clamp D, so that the operating'arm cTof the spring will be obtruded to the desired extent in the path of the door.

It will be observed that myimproved check has a duplex action, asI term it-that is to say, the spring-arm 0 acts as a brake upon the door by reason of the resistance which it offers to lateral deflection until the door strikes against the lip c, and it then offers a further resistance by the pulling action which the door exerts through the lip c" and upon the bow or curve 0. the casing, and the spring may be adj ustcd upon the bracketso as tosuit the strength of the closing-spring which is applied to the door, and to permit the door to wholly close into the rabbet in the casing, or to hold it very slightly ajar or in an unlatched condition, so as to prevent its slamming the door against the rabbet. Not only does the check serve to prevent slamming of the door when closed, but it also holds the door in an approximately-closed condition, whether latched or not, and prevents any shaking or rattling of the door in any direction, thereby saving the latches or looks and the hinges, and thereby avoiding the breaking of the glass in case it be applied to a glazed door.

Ihave here represented the check as applied The bracketD may be adjusted upon to the side of the door and easing; but it might,

if desired, be applied to the top thereof. I

now deem its application to the side, however,

more advantageous, because it then exerts no downward pressure upon the door.

I am aware of patent to Saunders,No. 347, 587,

dated August 17, 1886, and I do not claim as of my invention anything shownor described therein. In that patent there is employed a spring composed of a coil and-two arms projecting in the same direction; but this spring through one arm is secured to a door-casing so that it lies in a horizontal plane with its arms parallel approximately with the face of the casing and the closed door, and when the door is closed a tappet or toe uponthe face of the door comes against this spring. According to .my invention the spring is so arranged that its arm 0 receives the sliding impact of the edge of the door, and after the door is closed that arm lies between the recess in the jamb and the edge of the door.

What I claim as my invention, and desire to secure by Letterslatent, is

1. The doorcheek herein described, consisting of a bent spring having the bow or curve 0 and the arms 0 0 by the former of which the check is supported from the door-casing and on the latter of which the edge of the door bears in closing, substantially as herein set forth.

2. The door-check herein described, consisting of a bent spring having a bow or curve, 0, and arms cc", thelatter arm, c,being provided with an outwardly-turned lip, at the end, and a bracket with which the arm a has a sliding connection in the direct-ion of its length and which is to be secured to the doorcasing, so that in closing theedgeof the door willbear on and remain against the arm 0 and shoulder c, substantially as herein set forth.

3. The combination, with thek nee or bracket D, having in one flange the slots 11, for securingscrews, and having in the other flange the slot (1, of the bent spring having the bow or curve 0 and the arms 0' c, the arm 0 being secured to the bracket by a bolt, 6, and the other arm serving to receive contact of the door, substan tially as herein described.

\VARREN S. BARLOlV.

Witnesses:

MINERT LINDEMAN, FREDK. HAYNEs.