US460501A

US460501A - sumner

Info

Publication number: US460501A
Authority: US
Publication date: 1891-09-29
Anticipated expiration: 1908-09-29

Description

I (No Model.)

L. GOBURN & W. J. SUMNER. DOOR HANGER. No. 460,501. Patented Sept. 29, 1891.

UNITED STATES ATENT OFFICE.

LEMUEL COBURN AND \'VILLIAM J. `SUMNER, OF HOLYOKE, MASSACHUSETTS, ASSIGNORS TO THE C'OBURN TROLLEY TRACK MANUFACTURING COM- PANY, OF SAME PLACE.

DOOR-HANGER.

SPECIFICATION forming 'part of Letters Patent No. 460,501,dated September 29, 1891.

Application filed March 2, 1891. Serial Na. 383,507. (NO model.)

To aZZ whom, it may concern:

Be it known that we, LEMUEL COBURN and WILLIAM J. SUMNER, citizens of the United States, residing at Holyoke, in the county of Hampden and State of Massachusetts, have iuvented new and useful Improvements in Hangers for Doors and other Movable Parts, of which the following is a specification.

This invention relates to improvements in rolling supports, which are movable'on suitable tracks, for doors, ladders, fire-escapes, or other bodies, apparatuses, or loads, the object of such invention being the provision of a carrier for the purpose indicated Which is of unusual efficiency, whereby the weight of the article or thin g to be supported shall be most evenly distributed upon the wheels or rollers embodied in the contrivance, so that the wear of the parts shall not be marked or excessive in any one part of the device.

Another object of the invention consists in the capability which the rolling carrier or support possesses for always remaining` lubricated and free-running.

The invention consists in the construction and combinat-ion of parts, all substantially as will hereinafter more fully appear, and be set forth in the claims.

In the acconcpanying` drawings, forming part of this specification, the present improvements are illustrated.

Figure 1 is a view in perspective showing a portion of a trolley-track, the roller-carrier, and the upper part of a door shown as supported on and pending therefrom. Fig. 2 is a perspective view of the part of the carrier Which is directly supported on the rollers. Fig. 3 is a cross-section of the track and carrier on the line 3 3, Fig. 1.

The trolley-track A has parallel ways a a,

upon which the pintle-united rollers b b run. The said pintle-united rollers and the part B, sustainedthereon,constitutetherollencarrier, and the said roller-supported part B, which is essential to this invention will be now particularly described. The said carrier-body B has a pair of thin, though rigid, side bars (l d of metal, and in practice a desirable length therefor for the most ordinary use of the device is about five inches, and said bars are rang'ed side by side in parallelism longitudinally of the track 'and clainp between their end portions comparatively short blocks f f of suitable material, Wood being preferred. These wood blocks have within their under edges between their ends transverse semicircular recesses g, which extend from side to side of the block. The portions of the thin metal side bars Which are adjacent the trans- Verse block-recesses are themselves recessed, as shown at h, while the said blocks as ordinarily forrned have the widened portions Which fit and fill out the recesses in-the side strips, making for the carrier-body B even and smooth sides. The blocks and strips are firrnly and compactly united by the transverse rivetsj, and there is, of course, within the side strips and between the inner ends of the blocks an opening` k, across which passes the pin or bolt m, which is removably supported by resting` within the holes n formed through the strips The pin m on being removed permits of the passage within the middle aperture k of the carrier-body of a hanger or lug, one of such being shown at o, the pin on being returned engaging said hanger or lug.

The wood blocks are to be saturated and thoroughly permeated with melted tallow, oil, or any fatty material, and by this means the permanent lubrication at the bearing between the carrier-body and the axle or rollerpintles is assured-an advantage which is of importance, especially in a roller-carrier which runs within a tubular double-way track such as shown in the drawings, and which track itself is often inclosed or otherwise inaccessible.

The weight of the carrier-body and of the door or load sustained thereon is borne through the contact of the roller-pintles with the wood blocks at the recessed portions g of the latter, and as the wear takes place it is entirely, so far as the carrier-body is concerned, evenly of and upon the said blocks. The nature of the fat-saturated blocks is such that while the wear is slow and smooth, and as the parts are used they move noiselessly, the portions as they are Worn away at the bearings only bring to the contact of the IOO ro'lIer-pntles such new Wood surfaces as are equally efficient forlubrication, smooth wear, and noiseless bearing.

\Vhat We claim as our inventon is- 1. A roller-carrier for the purpose substantially as set forth, consisting of opposing pairs of metallic strips provided intermediately thereof at their end portions With Wood blocks, the said strips and blocks being` firmly confined together, leaving the intermediate space within the Strips and between the inner ends of the blocks, bearings formed in the under sides of the blocks, and a supporting member, as the pin m, supported on said Strips, and rollers having uniting axles, on Which said blocks directly bear, substantially as described.

2. The combination, With a tubular trolleytrack having at its under side double parallel *ways With an intermedate slot, su'bstatially 20 as described, and two pairs of double and pintle-united rollers adapted to run in said track, of a carrier-body consisting of parallel and opposing longitudinally-ranging metallic side strips, and blocks of Wood ff, rigidly confined between the end portions of said side strips, leaving the intermediate space, as lv, the cross member traversin` said space and supported on said strips, and a hanger adapted for engagement With said supporting member and to eXtend downwardly, to be Connected with the part to be carried, substantially as set forth.

LEMUEL COBURN, \VILLIAM J. SUMNER. Wtnesses:

WM. S. BnLLoWs, J. I). GARFIELD.