US1400125A - Door-closer - Google Patents

Description

1.0. WOOD.

DOOR CLOSER. APPLICATION FILED MAR. 21, 1920.

Patented D0013, 1921.

PATENT OFFICE.

JOHN C. WOOD, 0F BELLAIRE, OHIO.

DOOR-CLOSER.

Specification of Letters Patent.

Patented Dec. 13, 1921.

Application filed March 27, 1920. Serial No. 369,211.

T 0 all whom it may concern Be it known that I, JOHN C. VVOOD, a citizen of the United States, residing at Bellaire, in the county of Belmont and State of Ohio, have invented new and useful Improvements in Door-Closers, of which the following is a specification.

This invention relates to door closlng means, and more particularly to a door closing device in which springs and slmilar elements which are apt to become disarranged are omitted.

One of the main objects of the invention is to provide a door closing device of simple construction and operation which may be readily applied and in which springs and similar elements which are apt to become disarranged are omitted. A further object is to provide a device which will insure positive closing of the door while avoiding slamming thereof. Another object is to provlde a device of compact structure and neat appearance which may be readily applied to a door of common type. Further objects will appear from the detailed description.

In the drawings Figure 1 is a top plan view of the door closure.

Fig. 2 is a view similar to Fig. 1 with the supporting plate removed.

Fig. 3 is a vertical sectional view through the form illustrated in 1.

Fig. 4 is a section taken substantially on line 7-7 of Fig. 3.

I provide a segmental plate 11 WlllCll is adapted to be set into the floor C adjacent one lower corner of the door casing A (Fig. 3). A bracket 12 is secured to plate 11 and depends from the under face thereof. This bracket receives a flattened eye 13 provided at one end'of a bearing sleeve 14:, and a pin 15 passes through the bracket and eye 13 so as to pivotally connect the inner end of the sleeve to the bracket in such a manner as to permit turning of this sleeve about a vertical axis. A horizontal shaft 16 has its inner end portion rotatably mounted in sleeve 14, and is provided at its outer end with a pinion 17 secured thereon. This pinion meshes with and travels upon a rack 18 supported by bracket arms 19 depending from plate 11, the rack being dlsposed in concentric relation to pivot pin 15. A drum 20 is secured on shaft 16 between the pinion and the sleeve and receives the intermediate portion of a cable 21 which is wrapped about the drum, a weight member 22 being secured to one end of this cable and a weight member 23 secured to the other end of the cable, member 23 being of greater weight than member 22. An arm 24 is secured to door D and is slotted at its lower end to straddle shaft 16. This arm operating through an arcuate slot 11 provided in plate 11.

As will be understood, the heavier weight 23 acts to rotate shaft 16 in door closing direction, and the two weights combine to hold cable 21 in tight frictional contact with drum 20. Also, as will be noted more clearly from Fig. 3, the weights serve through the medium of the cable and associated parts to hold the pinion 17 braced upon and in mesh with rack 18. The plate 11 and the parts associated therewith forming a unitary structure which may be readily applied by securing the plate to the floor as illustrated.

As will be understood, and as indicated herein, changes may be made in details of construction and arrangement of parts of the invention without departing from the field and scope of the same, and I intend to include all such variations as fall within the scope of the appended claims, in this application in which the preferred forms only of my invention are disclosed.

What I claim is:

1. In door closing means, a door, a supporting plate, a bearing sleeve pivoted at one end to said plate for movement about a vertical axis, a shaft having one end rotatably mounted in said sleeve, a rack depending from said plate and disposed concentric with the pivot of said sleeve, a pinion secured on the shaft and meshing with said rack, a drum secured on the shaft between said sleeve and the pinion, a cable wound on the drum, a weight secured on said cable and acting to rotate the shaft in door closing direction, and an arm secured to the door and straddling the shaft.

2. In door closing means, a supporting plate, a bracket depending therefrom, a bearing sleeve pivotally connected at one end. to the bracket for movement about a vertical axis, a rack depending from the plate in concentric relation to the pivot or the sleeve, a shaft having its inner end rotatably mounted in the sleeve, a pinion secured on the outer end of the shaft and meshing with the rack, the pinion traveling upon the upper face of the rack so as to be supported thereby, a drum secured on the shaft, a cable Wound on the drum, and a Weight member secured on said cable for rotating 10 V the shaft in one direction.

In testimony whereof I aflix my signature.

JOHN G. WOOD.

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