US1126635A - Door closer and check. - Google Patents

Description

W. K. HENRY.

noon CLOSER AND CHECK.

APPLICATION FILED OCT. 19, 1914.

1,126,635, Patented Jan. 26, 1915.

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W. HENRY. DOOR CLOSER. AND CHECK.

APPLICATION FILED OCT. 19, 1914.

1,126,635. Patented Jan. 26, 1915.

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WILLIAM K. HENRY, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICAN HARDWARE CORPORATION, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

DOOR CLOSER AND CHECK.

- Specification of Letters Patent.

Patented Jan. 26, 1915.

To all whom it may concern:

I Be it known that I, WILLIAM K. HENRY, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Door Closers and Checks, of which the following is a full, clear, and exact description.

My invention relates to an improved door check and closer.

Among the main objects of the invention is to provide in such a device novel features of construction tending to simplify the same and to increase the range of action thereof.

In the drawings Figure 1 is a plan view of my invention, the parts being shown 1n operative position. Fig. 2 is a top plan vlew of the same. Fig. 3 is a longitudinal section on the line 3-3, the parts being relatively enlarged. Fig. 4: is a cross-section on the line 1-4. Figs. 5, 6 and 7 are detail views.

1 represents a spindle having mounted thereon a pinion gear 2.

3 is a rack-rod which meshes with the gear 2, whereby when the rod is moved to and fro, the gear 2 will be rotated. This rack-rod is capable of an oscillating movement around the gear. The means for holding the rack-rod in proper engagement with the gear to permit both of sa d movements, comprises an oscillating carrier 4 which 15 pivotally mounted concentrically with the sprindle 1, whereby it may turn around the axis of said spindle.

5-6 are guide rollers or bearings mounted on the carrier 41 and located just to the rear of the rod 3 so as to hold the latter in mesh with the gear 2. As will be seen, the centers of the shaft 1 and the rollers 5-6 are in triangular arrangement whereby the rod is properly steadied and held in position when the parts are assembled as shown in Fig. 2. The rollers 5-6 serve to hold the rod in its proper meshed relation to the pinion gear 2 at all times and in all positions. The spindle 1 is mounted for rotation in a cylinder 7 8 is a plunger capable of reciprocation in the cylinder 7, said plunger having rack teeth 9-10 which respectively mesh with spaced gears 11-12 on spindle 1.

13 is a closer spring which at one end bears against a preferably adjustable abutment 1 1, the latter being movable to and fro by any suitable means such as an adjusting screw 15, the outer end of which may be operated by means of a suitable tool such as a screw-driver. The other end of the spring 13 bears against the plunger 8 so as to 'normally press it to the left, as viewed in Fig. 3. This plunger 8 may carry a checking piston 16, while 17 represents an adjustable relief valve at the checking end of the cylinder 7. The closer spring 13 is preferably of such length as to pass the spindle 1 as seen in the several views, said spindle 1 being shaped to afiord clearance therefor, and, likewise, if desired, being set slightly ofi the center line of the cylinder 7, as best seen in Fig. 2. The cylinder may be cut away or so shaped intermediate its length, as indicated in Fig. 6, to afford clearance for the spindle. The said cylinder may be mounted in a suitable bracket 18 which may be provided with oii'sets 19-19, whereby the cylinder may be secured in place to a door or door casing by means of ordinary screws.

20 is a bracket for pivotally receiving one end of the rack-rod 3, whereby the latter may be secured to the door or door casing. If desired, the rack-rod 3 may have an offset bend 3- to afford clearance for the edge of the door and casing when the door is opened. I have shown my new apparatus as applied to a door and door casing in one simple manner, the bracket 18 being secured to the door 21, the bracket 20 being secured to the door casing 22. When the door is being opened, the rod 3 will cause the rotation of the gear 2 and spindle 1 and thereby will impart movement to the reciprocating plunger 8 in a direction to put the closer spring 13 under increasing tension, while at the same time it moves the piston 16 away from the checking end of the cylinder. When pressure on the door is released the expansion of the spring 13 will tend to restore the parts to the position shown in Fig. 3, a too hasty closing movement being retarded by the checking means. Obviously my checking device may be attached to a door and door casing by any suitable means which will produce, through the medium of the rod 3, rotation of the gear 2. In many devices of this character, it is practically impossible to impart to the main spindle 1 a full half turn, whereas by my improvement it is obvious that a full half turn, or more or less, may be readily imparted to the gear 2 and spindle 1.

W hat I claim is: 1

1. In a device of the character described, a cylinder, a plunger arranged to be reciprocated therein, a shaft with means of connection between said plunger and shaft to reciprocate the former on the rotation of the latter, a gear mounted on said shaft, a rack rod in mesh with said gear, a supporting carrier mounted to oscillate concentrically relatively to said gear, said carrier holding said rod in mesh with said gear.

2. In a device of the character described, a cylinder, a plunger arranged to be reciprocated therein, a shaft with means of connection between said plunger and shaft to reciprocate the former on the rotation of the latter, a gear mounted on said shaft, a rack rod in mesh with said gear, a supporting carrier mounted to oscillate concentrically relatively to said gear, said carrier holding said rod in mesh with said gear, a spring arranged to be compressed by said plunger when the latter is moved in one direction.

3. In a device of the character described, a cylinder, a plunger arranged to be reciprocated therein, a shaft with means of connection between said plunger and shaft to reciprocate the former on the rotation of the latter, a gear mounted on said shaft, a rack rod in mesh with said gear, a supporting carrier mounted to oscillate concentrically relatively to said gear, said carrier holding said rod in mesh with said gear, a spring arranged to be compressed by said plunger when the latter is moved in one direction, and a checking means cooperating with said plunger arranged to resist the movement of the latter in an opposite direction. I

WILLIAM K. HENRY. lVitnesses:

NEWTON Gr. Cnnrrs, WILLIAM V. COLLINS.

Copies; of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. O.

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