US546729A

US546729A - Door-hanger

Info

Publication number: US546729A
Authority: US
Publication date: 1895-09-24
Anticipated expiration: 1912-09-24

Description

(N0 'M od'el J. W. OONOHAR. DOOR HANGER.

No. 546,729. Patented Sept. 24, 1895.

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NITED STATES JAMES WQCONOHARI, on DUBUQUE, IOWA.

DOOR-HANGER.

SPECIFICATION forming part of Letters Patent No. 546,729, dated September 24, 1895.

A plication filed February 16, 1895- Serlal No. 538,737- (No model.) I

To aZZ whom it may concern.-

Be it known that 1, JAMES W. CONOHAR, a citizen of the United States, residing at Dubuque, in the county of Dubuque and State of Iowa, have invented certain new and useful Improvements in Door-Hangers for Slidin g Doors; and I do declare the following to be a full, clear, and exact description of the nvention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to doorhangers for sliding doors, and has for its leading object to provide means whereby the door may have a much longer antifriction run or sweep than is obtained by the present hangers now in use.

A further object is to provide a broader bearing for the carrying-wheels; and my invention consists, broadly, in placing at each end of the rider-bars a pair of antifriotionrollers, against which the trunnions of the carrying wheel impinge when they have reached the end of the rider-bars of the hanger, and in broadening the rider-bars, whereby the door will run more evenly and decrease the wear on the trunnions of the carryingwheels.

In giving a detail of my invention, reference will be had to the accompanying drawings, forming a part hereof, in which- Figure 1 is a side elevation of the hanger. Fig. 2 is an end view of the hanger, showing the antifriction-rollers in position. Fig. 3 is a cross-section of the hood through the line X X, looking to the right. Fig.4: is a modified form of a rider-bar without the hood and removed from the hangenand Fig. 5 is a crosssection through the line Y' Y of Fig. 4.

Like letters of reference denote corresponding parts in all of the drawings.

The door-hanger A is constructed of a single sustaining-frame, bent as shown in Figs. 1 and 2, having the overhanging members I) b. Underneath the overhanging members 17 b is secured a hood B, the lower rear edge of which terminates in one of the rider-bars O. The front of said hood is slotted at D, and the upper side of said slot forms the other rider-bar O. The rider-bars O C are formed by bending the metal of the lower edges of the hood proper out at right angles, as shown at c c in Fig. 3. This mode of construction furnishes broad bearings on the rider-bars for the trunnions of the carrying-wheels, whereby the wear upon them is reduced to the minimum and the door is caused to run much more evenly.

Figs. 4 and 5 show a modified form of a rider-bar independent of the hood, the broadening of bearing parts 0 0 being formed by bending outwardly at right angles a piece of the metal from the central part of the bar, leaving the slot D, and thereby forming the parts 0 c of the rider-bars O 0. Within the slot D, and in contact with the under side of the rider-bars O 0, travel the trunnions e e of the carrying-wheel G, which wheel travels upon the track H. Between the overhanging members I) b and the rear of the lower edge of the hood B are pivoted through 19 and B antifriction-rollers d d at each end of the hanger. Also, in the opposite side of each end of the hanger is pivoted, through the front of the hood B and the sustaining-frame A, other antifriction-rollers ff. These hangers thus constructed are fastened to the door near the upper corners by bolts through the holes a a, in the hangers A A.

The manner of operating my device is as follows: The carrying-wheels, with the hangers and door attached to said hangers, are placed upon the track H, with the rider-bars C O resting upon the trunnions e e of the wheel G. The door is then given motion to open the same, and the hangers, with their riderbars 0 O in contact with the trunnions e e of the wheels G G, will travel along on the track H until the trunnions come to the end of the rider-bars, where they will impinge against the antifriotion-rollers d d. The antifrictionrollers will then begin to roll in the opposite direction from that of the trunnions of the wheel G. It frequently happens that when the door is open or closed the wheel G will stand in the middle ofthe rider-bars, and

then it cannot be moved without great force after the trunnions come to the end of the slot D; but by placing the antifriction-rollers near both ends of the slot D when the trunnions come in contact with the rollers there is little or no change in the force necessary to move the door, and thus it will be seen that the travel of the door is practically unlimited without materially increasing the power necessary to move the door; also, a large door 5 can by this device be easily moved Without extending the length of the rider-bars or increasing the size of the hanger.

Having thus described my inventionpvhat I claim, and desire to secure by Letters Patro out, is

In a door hanger for sliding doors the combination of a carrying Wheel, with trunnions and one or more anti-friction rollers set to come in contact with said trunnions, at the end of the travel of said trunnions, for the [5 purposes shown.

In testimony whereof I aflix my signature in presence of two Witnesses.

JAMES \V. CONCIIAR. \Vitnesses:

M. M. CADY, M. E. EDDY.