US355852A - John b - Google Patents

Description

(No Model.)

- J. B. ARMSTRONG.

v DOOR CHECK. No. 355,852. Patented Jan. 11, 1887..

WW/wws Java/1107- UNETE TATES ATENT triers.

JOHN B. ARMSTRONG, OF AUGUSTA, GEORGIA, ASSIG-NOR OF ONE-HALF TO FRED T. LOGKHART, OF SAME PLACE.

DOOR-CHECK.

UPECIPICATION forming part of Letters Patent No. 355,852, dated January 11, 1887.

Application filed November 13, 1886. Serial No. 218,784. (No model To aZZ whom it may concern-.-

Be it known that '1, JOHN B. ARMSTRONG, a citizen ofthe United States, residing at Augusta, in the county of Richmond, State of Georgia, have invented certain new and useful Improvements in Door-Checks, of which the following is a specification, reference being had therein to the accompanying drawings. v v

The object of my invention is to produce a simple and inexpensive doorcheck,whereby the noisy slamming of doors and gates is prevented. I accomplish this object by the cons'truction illustrated in the accompanying drawings, in which Figure 1 represents a portion of a door and its frame, and attached thereto a door-check constructed in accordance with my invention. Fig. 2 represents a front view of the parts shown as attached to the door-frame in Fig. 1, with the cushion-carrying lever inclined atan angle from the horizontal position and the cushion depressed to receive the concussion of a left-hand door. Fig. 3 is a similar view of the door-check with the parts arranged as for a right-hand door. Fig. 4 is aperspective view of the bearing-block for the movable parts of the cheek. Fig. 5 is a transverse section through the frame and cushion of the check, with the operating-finger in the posit-ion it occupies after the door has been checked and has rebounded back a short distance.

In said drawings, A represents the upper portion of a door, and A the upper portion 3 5 of its frame, the door being in the present case a left-hand door having one of its hinges at a. It is also provided with a spring of suitable form, as at b, the tendency of which is to close the door; but to prevent its slamming, the door-check, as hereinafter described, may be used. This check consists of a frame or bearing-block, 0, having perforations c, Fig. 4, to receive screws, by which it is to be secured to the upper rail or molding of the door-frame 5 A preferably about the middle of the length of said molding, with the bottom edge of said block 0 even with bottom edge of said molding.

The perforations c are countersunk on bothsides of the block, to receive the heads of the screws from either side and adapt the device to be used in connection with a right-hand as well as with a left-hand door. The block 0 has vertical grooves 0* cut therein, of the same size, and opposite each other, or back to back,

. so that either one of the grooves can receive a small rectangular plate, D, easily fitting therein. This plate has a boss, D projecting from the lower portion of its face, and forwardly projecting from this boss is a block, (1, of elastic rubber or of other suitably springy mate- 6orial, secured thereto by inserting a tongue, 11*, projecting from the rear of'the block d, into ascrew-tapped perforation of the boss D"; but other suitable means may be used to secure the elastic block to the plate D. This plate has also projecting from its face adjacent to its up per end a pin, (1, by which it is suspended from one end of a walking-beam lever, E, that is pivoted about half-way of its length upon a screw, 6, capable of being inserted into either end of the screw-tapped perforation e in the block 0. The lever E is slotted at 0 adjacent to one end, to receive the pin d3 of the plate D and give said pin the necessary play, and said end is guided and arrested in its ascent by the angular clip F, secured at f to the top of the block 0 by means of a screw, f, so that it can be swung on either side of said block for a right and a left hand door. A small piece of rubber may be secured to the top edge of the lever E at its end, to prevent any noise of said lever against the under side of the clip F under the impulse of the spring G, secured to the block 0 at 0*, while pressing upon the opposite end of the lever E. Said opposite end carries an arm, E extending horizontally at right angle to the" lever E, to lift it at the time the operating-finger H passes vertically thereunder while the door is rotated toward its frame.

The finger H is pivotedat h to the upper end of an angular bracket, H secured to the door close to its upper edge. The lower end of the finger H has a short arm, H that acts as a weight and a stop against the door to keep said finger in a vertical position while passing under the arm E The outer end of said arm is curved upward to form an inclined track for the upper end of the finger to strike under and elevate that end of the lever E.

The arm E has a recess, E", in one side to permit the finger H to escape from under the arm E and permit the lever E to again assume a horizontal position under the impulse of the spring G. The upper end of the oper ating-finger H is preferably provided with a friction-roller, I1 and a small piece of rubber, h, is inserted in the rear edge to prevent the noise of concussion of said finger against its bracket.

The operation is as follows: lVhen the door is in the act of closing, the upper end of the finger H, orits friction-roller h, strikes against the inclined or rounded outer end of the arm E and elevates it, at the same time elevating the end of the lever E, that carries said arm, and depressing the opposite end, that carries the sliding plate D and its rubber or elastic cushion d, bringing the latter below the level of the top of the door and directly in its path, and if the door were closed with much force it will not only be arrested by the elastic cushion, but rebound back a few inches, bringing the parts nearly to the position shown in Fig.5; but immediately before this rebound the finger H has entered the recess E in the arm E and the latter has become released from its upward pressure, and has become again under the influence of the spring G on top of the lever E, and has occupied a horizontal position and elevated the cushion (Z out of the way of the door, so that the latter is free to swing to a closed position under the impulse of the doorspring Z).

I am aware thatin the construction of doorchecks a horizontal lever has been pivoted about the middle of its length to a door-frame, in connection with special devices secured to the door to rock said lever and check the door, and do not claim, broadly, the use of such a lever.

Having now fully described my invention, I claim- 1. A door-cheek consisting of a walkingbeam lever having at one end a vertically-sliding plate pivoted thereto, and an elastic cushion secured to said plate, and at the other end an arm extending horizontally, in combination with a finger pivotally carried by a door, substantially as and for the purpose described.

2. The combination of a block having vertical grooves, a walking-beam lever pivoted thereto, an elastic cushion and a sliding plate connected with one end of said lever, and at the opposite end an arm extending from said lever, and a spring pressing upon the latter end of the lever, with a bracket secured to a door, and a finger pivoted to said bracket, substantially as and for the purpose described.

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

JOHN B. ARMSTRONG.

lVitnesses:

E. E. MAssoN, E. G. YVURD'EMAN.

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