US1074091A - Double-acting door-check. - Google Patents

Description

J. H. SHAW.

DOUBLE ACTING DOOR CHECK.

APPLICATION FILED JULY 21, 1905.

1,074,091. Patented Sept. 23, 1913.

Z SHEETS-SHEET 1,

J. H. SHAW.

DOUBLE ACTING DOOR CHECK.

APPLIOATION FILED JULY 21, 1905.

1,074,091. Patented Spt.23,1913.

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JOHN H. SHAW, OF NEW HAVEN, CONNECTICUT, ASSIGNOB TO SARGENT 6c COMPANY, OF NEW HAVEN, CONNEGTICUT, A CORPORATION 013 CONNECTICUT.

DOUBLE-AGTING DOOR-CHECK.

b all whom it may concern Be it known that 1, JOHN H. SHAW, ot

the city and county of New Haven, State of Connecticut, have invented certain new and useful Improvements in Double- Acting Door-Checks, of which the following is a full, clear, and exact description.

This invention relates to door checks for use on double acting doors.

Heretofore it has been proposed to make the ordinary form of door check applicable to double acting doors by inclining or slanting the axis of the link in the bracket (usually applied to the door frame) so that the link will swing upward and downward the crank or lever arm connected with the spindle of the check applied to the door. The crank or arm is pivoted on the check spindle to move in a vertical plane, so that it.

may be pulled upward and downward by the obliquely pivoted link connected with the bracket, whereby said crank or arm is swung upward over the top edge of the door when .the latter is opened in one direction and is swung downward under the lintel of the door frame when the door is opened in the other direction.

'lhe object of the present invention is to provide a double acting door check in which the crank or its equivalent carried by the spindle of the check is mounted to swing obliquely in a definite pat-h over the top edge of the door and under the lintel independently of the action of the link or other member attached to the bracket. In other words, my object is to furnish a check in which the raising and lowering of the crank or other element connected with the check spindle is not efl'ected by the movement of the link but by so mounting said crank that it will swing in a definite oblique path irrespective of its connection with the link connected to the bracket, thereby relieving the link of considerable strain and increasing the positiveness of action and the general efliciency and reliability of the device. The link is so connected with the bracket that it can par take of the oblique raising and lowering movements of the crank arm, and in some cases the link has special means associated therewith for raising and lowering it independently, although this is not essential in all aspects of the invention.

To these and other ends the invention consists in the novel features and combinations Specification of Letters Patent.

Application filed July 21, 1805.

latcntcd Sept. 233, l 913.

Serial No. 270,692.

of parts to be hereinafter described and claimed.

In the accompanying drawings, illustrating a preferred form of the invention, Figure 1 is a front elevation of a double acting door check embodying the invention, showing the doubli acting door in its closed position, Figs. 2 and 3 are similar views showing the position of the parts when the door is opened in opposite directions, liig. t is a longitudinal vertical section through the bracket and the end of the connecting link, Fig. 5 is a transverse vertical section through the same parts showing them in a dill'erent position, Fig. (i is a detail front elevation of the bracket detached, Fig. 7 is a vertical longitudinal section through the check, Figs. 8 and 9 are details of a modified form of bracket, and Fig... 10 and 11, are details of a :lurthcr modified form of bracket.

Referring to the drawings, A represents a double acting door, 13 the door jamb, G the lintel, and I) the door check proper. As shown in Fig. 7 the device I) may combine the functions of a door check and a door closer, but it .may have only one of those functions, and when I refer herein to a door check or a door check and closer it is to be understood that T use the term in a broad sense, intending to core a check, closer or combined check and closer. The check or closer or both must be of the double acting type as will be understood. The combined check and closer selected for illustration comprises a double acting closer spring and a double acting spring check, the general construction and operation of which will be obvious to those skilled in the art. In the emlwdiment illustrated the check I) and the bracket E are secured to the door and limited respectively, and are connected to each other by means of a crank G and a link F, but in devices of this class it is sometimes expedient to reverse this arrangement and to place the bracket on the door and apply the check to the door frame.

In the form shown, the arm G is swiveled at its outer end to the end of the link F, as indicated at IT. The swivel connection H permits the members F and G to swing up and down, as will be understood. The crank arm or lever (i is pivoted to the upper end of the check spindle J by means of a pin it which permits the arm G to swing up and down on the check spindle. In this way, the arm G is capable of a slight oscillation in a vertical direction so that its outer end which is connected with the link F may be raised and lowered to a certain extent.

In the embodiment illustrated, the arm G is swung upward and downward (in order to move in an oblique plane as the spindle J is rotated, and thereby pass over the top edge of the door or under the door lintel, according as the door is opened in one or the other direction) by. means associated with the casing of the check, such as a cam S on top of the casing. The cam S is provided with a low part at one side of the casingand with a high part at the opposite side of the casing, as shown. Then the arm G is rotated by the check spindle over and in contact with the high portion of the cam (see Figs. 8 and '7) the arm will be swung up on its fulcrum pin it so that it will be raised above the top of the door when the latter is opened in one direction. On the other hand when the door is opened in the opposite direction the arm G swings by gravity on to the lower part of the cam S so that said arm will pass below the lintel G.

The link F (Figs. 1 to 7) is raised and lowered by special means independently of its connection with the arm G. In the construction shown, the bracket E is hollow and is provided with a depending stud K having a lateral flange L at its lower end. The stud or pivot K is preferably in substantial parallelism with the attaching face of the bracket E and with the spindle J of the door check, it being unnecessary to slant or incline the bracket axis in the manner previously mentioned. On the outside of the bracket is a cam shaped flange M having its highest point on the central line of the bracket E, as shown in Fig. 6, and inclined downward at both sides. The link F is pivoted to the stud K by means of a trans verse perforation N at the end of said link through which the stud J projects. At the upper end of the perforation N is an inwardly projecting flange 0 to engage the flange L on the stud K and thereby limit the longitudinal movement of the link on its pivot. The link is closely guided along the cam edge M by means of a finger P on the link which projects over the top surface of the flange M as shown in Fig. 5.

At the same time that the arm G is swung upward over the door A (Fig. 3) the link F is drawn to'a position approximately at right angles to the plane of the bracket E.

ate the link thereto connected.

shown in Figs. 10 and 11, the bracket E is downward (Fig. 2) the link F will be drawn to a position substantially parallel with the plane of the bracket E and said link will be lowered by passing into cooperation with the lower portion of the cam M. Hence the entirerconnection between the spindle and bracket will be lowered or depressed suiiiciently to pass beneath the lintel of the door frame. 1

In Figs. 8 and 9 I have shown a modified form of bracket E having a bearing portion or sleeve A with a bore B In the bore or perforation B an inclined cam path C is arranged to cooperate with a stud or pin E on the pivotal end portion ofthe link F The parts are assembled by passing the pivotal portion of the link F into the bore or perforation B in such a manner that the stud or pin E passes into the cam path C by way of a groove D as will be understood. The cam path C is higher at the middle than at either end, and the operation is substantially the same as that pre viously described and need not be referred to in detail. 7 V I In the modification shown in Figs. 10 and 11 the link is not provided with any special 'means for raising and lowering the same,

but on the other hand, is raised and lowered solely by means of its connection with the arm G. In other words, the arm G, in being positively moved by appropriate means in an oblique plane is depended on to actu- Tn the form provided with parallel ears A between which is mounted a block 13 provided with trunnions C having bearings in the cars [35, so that the block or member B is capable of oscillation in'a predetermined plane. The member B is provided with a stud D on which is pivoted a U-shaped piece E to which the end of the link F Y is pivotally se cured. It will be understood that as the member B is free to oscillate in the bearings of the trunnion C and as the member E is mounted to oscillate on the pivot D at right angles to the axis of the member D a universal joint is provided, so that the link E is free to follow the compound movements of the arm G. When the link F projects at right angles to the plane of the bracket the support B and piece E will extend downward as shown in Fig. 11, but when the link F is turned toward the plane of the bracket E it will tend to turn the piece E on its vided between the link and bracket. In all of the various forms of my device the crank arm or its equivalent attached to the check proper is given an oblique raising and lowering movement by means other than the link, and the link is so connected with the bracketthat the end of the link connected with the crank arm is permitted to follow the compound movements of the latter.

While the foregoing description is a detailed one in so far as it concerns the particular embodiments of my invention selected for illustration and description, it will, of course, be understood that numerous modifications may be made in the construction without departing from the spirit of my invention as fairly defined in the claims.

What I claim is:

1. The combination with a double acting door and a door frame, of a door check applied to one of said parts and having a spindle, a bracket applied to the other part, a link connected with the bracket, and an arm connected with said link and with the check spindle, and mounted to swing in a predeterininedoblique path, independent of the action of said link; substantially as described.

2. The combination with a double acting door and a door frame, of a door check applied to the door and having a spindle, a bracket applied to the door frame, a link connected with said bracket, and an arm connected with said spindle and said link and mounted for swinging movement, independent of the action of said link, in a predetermined path over the edge of the door and under the lintcl; substantially as described.

3. The combination with a double acting door and a door frame, of a bracket applied to the door frame, a link connected with said bracket, an arm loosely connected to said link, and a door check applied to the door and affording a mounting for said arm on which the latter swings in a definite path over the top edge of the door and under the lintel, independently of the action of said link; substantially as described.

t. The combination with a double acting door and a door frame, of a bracket applied to the door frame, a link, a coupling device connecting the link with the bracket to perunit the link to have an oblique raising and lowering movement, an arm loosely connected to said link, and a door check applied to the door and affording a mounting for said arm on which the latter swings in a predetermined path over the top edge of the door and under the lintel, independently of the action of said link; substantially as described.

5. The combination with a door check and closer, including a casing and a spindle ournaled therein, of means to connect said spindie with a door or door frame, including an arm on said spindle mounted to swing in a vertical plane, and means associated with said casing to raise and lower said arm as the spindle is rotated; substantially as described.

6. The combination with a door check and closer, including a casing and a spindle journaled therein, of means to connect said spindie with a door or door frame, including an arm pivoted on said spindle to swing vertically, and a cam associated with said casing to raise and lower said arm as said spindle is rotated; substantially as described.

7. The combination with a door check and closer inchiding a casing and a spindle journaled therein, of means to etumect said spindle with a door or door frame, including an arm pivoted to said spindle to swing up and down, and means adjacent the connection of said arm with said spindle to swing said arm up and down as said spindle is rotated; substantially as described.

8. The combination with a door check and closer including a casing and a spindle rotatable therein, of means to connect said spindle with a door or door frame, including an arm pivoted to one end of said spindle to swing vertically with respect to said casing, and a cam on the casing to raise and lower said arm as the same is rotated with the spindle; substantially as described.

5). The combination with a door check and closer, including a spindle, of a bracket, means to connect said spindle with said bracket including a member pivoted to said bracket on an. axis substantially parallel to said spindle, and a device associated with said bracket to raise and lower said connecting member as the check is actuated; substantially as described.

it). The combination with a door check and closer including a casing and a spindle rotatable therein, of a bracket, connecting means extending between said spindle and said bracket, and a cam associated with said bracket to raise and lower said connecting means; substantially as described.

11,. The combination with a door check and closer embodying a spindle, of a bracket, an arm connected to said spindle, a link connecting said arm with said bracket, and a cam associated with said bracket to raise and lower said link as the device is actuated; substmitially as described.

12. The conibination with a door and door frame, of a door check and closer, and a bracket, one of said parts being secured to the door and the other to the door frame, said bracket having a vertically directed axis, means movable about the axis of said bracket and connecting the latter with the door check and closer, and means associated with said bracket to raise and lower said connecting means as the same n'ioves about the aforesaid axis; substantially as described.

18. The combination with a. door and door frame, of a door check and closer, and a bracket, one of said parts being secured to the door and the other to the door frame, said bracket having a vertically directed axis, means movable about the axis of said bracket. and connecting the latter with the door check and closer, and a cam associated with said bracket to raise and lower said connecting means as the same moves about the'atoresaid axis; substantially as described.

14. The combination with a door check and closer, including a spindle, 0t abracket, I means connecting said spindle and bracket,j and de'ices at the spindle-connected end 16. The combination with a door check and closer, including a spindle, of a bracket, means connecting said spindle and bracket, including a member pivoted to the bracket on an axis substantially parallel to the attaching face of the bracket, and guiding means associated with the bracket to swing 18. The combination with a door check and closer including a spindle, of a bracket, an arm pivoted to said spindle to swing up and down with respect to said check and closer, a link connecting said arm with said bracket, means associated with the check and closer to raise and lower said arm, and means associated with said bracket to raise and lower said link; substantially as de I scribed.

19. The combination with a door check and closer, of meansto connect said check and closer with a door or door frame, including separate members loosely connectee to each other at theirmeeting ends, and separate means to raise and lower the respective members as the device is actuated; substantially as described.

In witness whereof, I have hereunto set my hand on the 29th day of: June, 1905.

' JOHN H. SHAW.

Witnesses: I

TV. H. BRADLEY,

A. M. RYAN.

Copies of this patent inay be obtained for five cents each, by addressing the Commissioner of ;Patents, Washington, D. C.

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