US1291605A

US1291605A - Door check and closer.

Info

Publication number: US1291605A
Application number: US18787817A
Authority: US
Inventors: William J Neidl
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-08-23
Filing date: 1917-08-23
Publication date: 1919-01-14
Anticipated expiration: 1936-01-14

Description

W. J. NEIDL.

DOOR CHECK AND CLOSER.

APPLICATION FILED AUG.23. 1911.

1,291,605. Patented Jan. 14,1919.

2 SHEETS-SHEET l.

INVENTOR ATTORTEY W. J. NEIDL.

DOOR CHECK AND CLOSER.

APPLICATION FILED AUG423, I917.

Patented Jan. M, 1919.

SHEET 2.

2 SHEETS I INVENTOR 4 7;

ATTORTEY WILLIAM J. NEIDL. OF NEW BRITAIN, CONNECTICUT.

DOOR CHECK AND CLOSER.

Specification of Letters Patent.

Patented Jan. 14, 1919.

Application filed August 23, 1917. Serial No. 187,878.

To all whom it may concern:

Be it known that I, WILLIAM J. N EIDL, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Door Checks and Closers, of which the following is a specification.

This invention relates to door checks and closers, and primarily to a combination device that closes the door through the operation of a coil spring and checks the closing by a pneumatic device such as a dash-pot which checks the speed of the door and causes the same to close Without noise.

Another object of the invention is to provide in a door check and closer, means whereby the tension of the spring may be increased or decreased asdesired in order to have the proper pressure upon the door to close the same Without subjecting it to a greater force than is demanded, said device being readily adjusted and may, when desired, be entirely released in order to relieve the door from the operation of the device.

A further object of the invention is to provide a device of this character which shall be made strong and of relatively few parts, of simple construction, not liable to get out of order and in which the tension of the spring may be adjusted by anyone without being required to callin a person of technical skill to adjust the spring to the weight of the door.

WVith the above as the principal objects in view, the invention consists in the novel construction, combination and arrangement of parts hereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, in which,

Figure 1 is a top plan view of the improved door stop and check,

Fig. 2 is a side elevation of the same, and

Fig. 3 is an end view.

In the drawings, 10 indicates a bracket designed to support the several parts of the device, said bracket comprising a horizontal member 11 and a vertical member 12, the latter member being rovided with a plurality of openings 13 therein for the insertion of screws to secure the bracket against. the inside of a door frame. At one side of the bracket 10, the upright or vertical member 12 has a horizontal projection 14 that extends a short distance beyond the bracket and has secured thereon a bearing 15 for a purpose to be hereinafter described.

The bottom member 11 of the bracket 10 is preferably rounded as shown and near the front edge thereof, is mounted a vertical bolt 16 secured by a nut 17 on the under side of the bracket and above the bracket is a swinging plate 18 turning on said. bolt and a ratchet wheel 19 immediately above the plate. The plate 18 is furnished with an outwardly projecting arm 20 terminating in a finger piece 21 by means of which the plate 18 is swung about the bolt 16. Extending out from the arm 20 is a lug 22 on which is pivotally mounted a pawl 23 adapted to engage the ratchet wheel and be held in engagement therewith by a spring 24 here shown as formed of wire bent about a pin 25 projecting upwardly from said lug with one end placed in engagement with the pawl 23 and the other inserted in an opening in the arm 20, said spring serving to keep the pawl in engagement with the ratchet wheel, and when said handle is turned in one direction to turn the ratchet wheel, reverse movement of the ratchet wheel being prevented by a second pawl 26 pivoted to the bracket 10 on the opposite side of the ratchet wheel.

Coiled about the bolt 16 and extending upwardly from the ratchet wheel for some distance, is a spring 27, the lower end of said spring being connected to the ratchet wheel, the upper end passing between two depending pins 28 on the under side of an arm 29 pivotally mounted on the bolt 16 above the spring, said arm extending outwardly for some distance and is pivoted at its extremity to a link 30, the opposite end of said link being pivoted to a bracket 31 that is designed to be secured to the side of a door. The arm 29 is maintained in place on the bolt 16 by a nut 32 threaded on the upper end of the bolt. Projecting from one side of the arm 29 where the latter is mounted on the bolt 16 is a smaller arm 33 the purpose of which will now be described.

At the side of the bracket 10 and in front of the projection 14. is a dash-pot 34: comprising a cylinder 35 having an car 36 on its rear end pivoted by means of a pin 37 in the bracket 15 and supported midway its length by an arm 38 extending outwardly from the bottom 11 of the bracket 10. Slidable within the cylinder 35 is the usual piston, (not shown) mounted on a piston rod 39 extending through one end of said cylinder and pivotally connected to a link 40 that extends forwardly from the end of the short arm 38 where it is in turn, pivoted by means of a bolt 41. The operation of this dashpot being well understood, no further expla nation or illustration thereof need be given. For the purpose of maintaining the cylinder 35 in proper position at all times, with relation to the other portion of the device, there is provided a spring secured to the bracket 10 by a screw 4E6, one arm of said spring bearing against the upright portion 12 of the bracket and the other arm against the side of the cylinder 35 serving to swing the cylinder to the normal position shown in the drawings after it has been moved inwardly through the operation of the door when opened. A spring 47 is also provided as shown to maintain the pawl 26 in engagement with the ratchet wheel 19.

In using this device, the bracket 10 is screwed to the door frame preferably near the top of the door and the smaller bracket 31 similarly fastened to the door proper, in about the relative position shown in Fig. 1. After being secured in place, if upon testing the door, the spring 27 be found too weak to properly return the door, the arm 20 is moved back and forth to cause the pawl 2-3 to engage the ratchet wheel 19 and turn the latter, which will wind up the spring 27 until the proper tension is reached, the pawl 26 preventing reverse rotation of the ratchet wheel andspring. In summer, or at times when it is not desired to use the door check and closer, the spring 27 may be relieved and the link 40 disconnected from the piston rod 39 by withdrawing the spring pin 48,

thus leaving the door perfectly free to be opened and closed or to remain open.

l V hat is claimed is:

1.. Ina door check and closer, a bracket adapted to be secured to a door frame, a pin or bolt mounted on said bracket and adapted to stand in vertical position, a lever pivoted on said pin and designed to be connected at its outer end to a swinging door, a ratchet wheel pivoted on said pin and a swinging arm alSO pivoted on the pin below the ratchet wheel, a coil spring surrounding said pin connected at one end to said ratchet wheel and at its opposite end to said lever, a pawl mounted on said arm for actuating said ratchet wheel and a second pawl pivoted on the bracket and engaging said ratchet wheel to prevent the rotation thereof.

2. In a door check and closer, the combination of a bracket adapted to be securedto a door frame and having a horizontal member projecting outwardly therefrom, a pin or bolt mounted in said projecting member, a lateral extension from said bracket for supporting a dash-pot, an arm pivotally mounted on the upper end of said pin and adapted to swing in a horizontal plane, an outwardly projecting member on said arm, a link connecting said member with said dashpot, a coil spring surrounding said pin below the lever and connected at one end to said lever, a ratchet wheel rotatable on said pin and connected to the lower end of said spring, an arm also pivoted on said'pin carrying a pawl to engage the ratchet wheel to rotate the same and increase the tension of the spring, and a second pawl to hold said ratchet wheel from reverse rotation.

3. In a door check and closer, the combination of a swinging lever, a bracket, a pivot pin on the bracket for supporting the lever, means for attaching said lever to a door, a coil spring connected at one end to said lever for actuating the same to close the door, a ratchet wheel rotatable about the pivot of said lever and having the opposite end of said spring connected thereto, an arm movable about said pivot and carrying a pawl to engage said ratchet wheel for changing the tension of said spring, and a dash-pot con nected to the lever.

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

' WILLIAM J. NEIDL. lVitnesses:

4 KATIE -MoRroN,

VILLIAM Ci-IAs. NEIDL.

@epflea oi? this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.