US814434A - Staying device for sliding doors. - Google Patents

Description

No. 814,434. PATENTED MAR.6, 1906.

F. DAHLUND.

STAYING DEVICE FOR SLIDING DOORS. APPLIOATION FILED JUNE 18, 1904.

N V 5 IV TOR Eanfl'Za/dahd ATTORNEYS UNITED STATES PATENT ()FFICF.

Specification of Letters Patent.

Eatented March 6, 1906.

Application filed June 18,1904. Serial No. 213,125.

To all whom it may concern.-

Be it known that I, FRANK DAHLUND, a citizen of the United States, and a resident of Esmond, in the county of Benson and State of North Dakota, have invented a new and Improved Staying Device for Sliding Doors, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved staying device more especially designed for use on heavy sliding doorssuch as barn-doors, freight-car doors, and the likeand arranged to insure an eas sliding of the door, to prevent rubbing of the door on the wall or door-casing, and to prevent snow or ice from looking or holding the door against movement.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views. Figure 1 is a face view of the improvement as applied to a sliding barn-door. Fig. 2 is an e arged end elevation of the improvement as applied, parts being in section; and Fig. 3 is a sectional plan view of the same on the line 3 3 of Fig. 2.

The sliding door A is hung in the usual manner on an overhead guideway B, secured to the side of the barn, car, or other structure 0, on which the door is used to open or close the door-opening C. The lower free end of the .door A is adapted to travel between an inner or rubbing roller D and an outer or pressure roller E, of which the rubbing-roller D has a roller-bearing D on a vertical pin F, secured to a bracket G, let in and secured to the side of the structure C adjacent to the %oor opening C, as plainly indicated in The roller-bearing, as shown in the drawings, consists of a plurality of rollers interposed between the inner vertical wall of the roller D and the pin F, on which the roller is mounted, said rollers being held from lon itudinal movement by the closed ends of t e roller D and bearing equally on the pin F and the inner vertical wall of said roller.

The rubbing-roller D is so arranged on the bracket G that it projects but slightly beyond the face of the bracket to engage the inner face of the door A, as plainly indicated in Figs. 2 and 3. The pressure-roller E is journaled on the crank-arm H, formed on the upper end of a shaft H, j ournaled in suitable bearings arranged on an auxiliary bracket G,

secured to or forming part of the bracket G and extending transversely below the lower edge of the door A, as plainly indicated in Fig. 2, to allow a free sliding of the door A without hindrance by the said auxiliary bracket G.

A torsion-spring I is coiled on the shaft H, and one end of the spring is secured to the bracket G and the other end is fastened to the shaft H to yieldingly hold the pressureroller E in engagement with the front face of the door A, so as to press the door against the rubbing-roller D, and thereby hold the door in proper vertical alinement to prevent swaying of the door, and consequently to allow an easy opening and closing of the door.

It will also be seen that by having the rubbing-roller D projecting slightly beyond the face of the side of the barn or other structure C the said inner face is not liable to rub against the side or wall of the structure, and as the pressure-roller E is yieldingly mounted it is evident that snow or' ice is not liable to lock or hold the door against movement.

The device is very simple and durable in construction and can be cheaply manufactured and readily applied to doors as now constructed.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A staying device for sliding doors, comprising an inner or rubbing roller, a bracket, a spring-pressed shaft mounted in the bracket and havin at one end a crank-arm projecting beyonf the bracket, and a pressure-roller mounted on the crank-arm.

2. A stayin device for slidin doors, comprising a brac et, a rubbing-ro ller mounted in the bracket, a second bracket projecting at right angles to the first bracket, a shaft mounted in the second bracket and having at one end a crank-arm projecting beyond the bracket, a pressure-roller on the crank-arm, and a spring surrounding the shaft and having one end secured to said shaft and its other end to the bracket.

3. A staying device for sliding doors, comprising a bracket, a vertical pin secured to the bracket, a hollow rubbing-roller mounted on the pin, a plurality of rollers arranged between the inner vertical Wall of the hollow roller and the said pin, a second bracket, a spring-pressed shaft mounted in the second bracket and having a crank-arm at one end, and a pressure-roller mounted on the crankarm.

4. In a staying device for sliding doors, a bracket having parallel members, a shaft mounted in the members of the bracket and having at one end a crank-arm projecting beyond the bracket, a pressure-roller mounted on the crank-arm, and a spring coiled on the shaft between the members of the bracket and having one end secured to said shaft and its other to one member of the bracket.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

FRANK DAHLUND.

Witnesses:

A. E. KIRKWOLD, H. G. DOKKER.

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