US873693A - Door-check. - Google Patents

Description

- PATENTED DEG. 1 0, 1907.

J. S. YOUNG.

DOOR GHEGK.

APPLIGATION FILED JULY 24, 1906.

wrrNEssEs JOSEPH S. YOUNG, OF PITTSBURG, PENNSYLVANIA.

DOOR-CHECK.

Specicaton of Letters Patent.

Patented Dee. 1o, 1907.

d Application ined .my 24, 190s. serial No. 327,484.

T o all whom it may concern.'

Be it known that I, JOSEPH S. YOUNG, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Door-Checks, of which the following is a specification.

This invention is an improved construction of door-check, the object being to provide a cheap, simple, and efficient device which can be attached to the door for the purpose of holding the same open in any desired position.

Another object is to provide a device which can be quickly and easily thrown into a locked or unlocked position and which will hold the door from closing in any desired position while freely yielding to pressure from the outside. And a still further object is to provide a door-check of such construction that it may be folded against the door when not in use, and thereby occupy little or no additional space, permitting the door to be manipulated exactly the same as a door without the check attached thereto.

lVith these objects in view my invention consists, essentially, in the employment of a twoapart bracket, one part thereof being adapted to be attached to the face of the door adjacent to the lower end thereof, the other part being adapted to be arranged at a right angle to the face of the door, and a cam eccentrically pivoted to the outer end of said projecting part, said cam having a stop adapted to engage said projecting end in its raised position and, if desirable, may also be so placed as to engage the outer end of the arm to limit its pivotal movement in the lowered position, the cambeing raised when not in use and turned down or lowered for the purpose of bringing it into frictional contact with the floor.

The invention consists also in certain novelties of construction and combination, all of which will be fully described hereinafter and pointed out in the claims.

In the accompanying drawings which form part of this speciiication: Figure 1 is a perspective view of my improved device showing the practical application of the invention, the hinging and pivotal positions thereof being shown in the dotted lines. Fig. 2 is a sectional view at the line 1 1 of Fig. 1 to give a clearer view of the peculiar hinging arrangement of the two-part bracket; Fig. 3

illustrates a section of the cam through the line 1a 1.

In the embodiment of myvinvention I employ a bracket composed of the plate 2 adapted to be secured to the face of the door, and the arm 3 jointed to the plate by means of the lugs 4 4 in the bearings 5 5, the arm 3 having knuckles 6 6 engaging the spring plate 7 which tend to positively hold the arm 3 either at right angles to the plate 2 or parallel therewith, as set, and prevents the arm from swinging at random. The plate 2 and the arm 3 may be made in a single piece if desired, but in practice, I prefer to hinge the two parts as shown, so that the arm 3 canbe folded back against the door when not in use as shown in the dotted outline A and A, Fig. 1.

The arm 3 is constructed with a depending and curved end 8, to which is pivotally connected the locking cam 9, by means of the pin 10, and adapted to act eccentrically when the cam is down as shown in position A, Fig. 1, and to lock against the opposing floor when the door provided with the device is moved in the one direction and to unlock and lightly drag when the door is moved in the opposite direction. The curved end 8 has a curved slot 11 concentric with the pivot pin 10, in which the stop-lug 12 on the cam 9 is adapted to engage and support said cam clear of the loor when raised as shown in position B.

When the cam is turned down, as shown in Fig.`1, main view, and in dotted position A, it will contact with the floor owing to the fact that it is eccentrically pivoted, and the end 8 of the arm 3 is rounded, so that the stop-lug will move around said vrounded end, and at a suitable point the said end 8 forms a stop shoulder against which the stop-lug will strike and limit the pivotal movement of the cam in that direction.

The cam 9 is provided with a lug 13, which projects in a direction opposite from the stoplug, and by means of this lug the said cam can be moved u or down, and it is obvious that in shifting t e cam either the hand or the foot may be employed. The cam may be made of any desired material; but in practice I prefer to employ a metal cam having a peripheral groove in which is located a piece of rubber or other resilient material 14 retained by means of suitable screws or rivets 15.

It is apparent that other constructions of cam or similar means may be employed withturned out and the cam is thrown down, so

that the face thereof` comes in contact with the floor and will bind by frictional contact against the floor, and, furthermore, the stoplug contacting with the arm 3 at its outer end will prevent the cam moving beyond a certain point, and in this manner the face of the cam is forced or jammed against the floor, and all closing movement of the door is prevented so long as the cam remains in this position; but it is also apparent that if the door be set partly open it will yield readily to permit free ingress or egress without manipulal tion of the door check. When it is desired to release the door, the cam is thrown back, and the door can be freely swung in either direction.

It will thus be seen that I provide a cheap, simple, and efficient construction of door check capable of carrying out all of the objects for which it is intended.

Having thus fully described my invention, what I claim as new and desire to protect by Letters Patent of the United States, is

l. A door-check comprising a two-part bracket, one part being adapted to be arranged at a right angle to the face ofthe door, and a cam eccentrically pivoted to said part and a stop carried by said cam to-engage the end of said bracket, substantially vas described.

2. A door-check comprising a bracket, a

cam pivoted to the end of said bracket, said end portion being slotted on a curve concentric with the pivot, and a stop carried by the cam and adapted to enter the slot, as described.

3. A door-check comprising a hinged bracket provided with knuckles engaging a spring-plate, a cam pivoted to the swinging end of said bracket, and a stop carried by said cam to limit-its pivotal movement.

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

JOSEPH S. YOUNG.

Witnesses:

RoB'r. F. Mmmm, C. LUDLOW LIVINGSTON.

Images