US350538A - Track for barn-door hangers - Google Patents

Description

(No Model.)

J. H. LAWRENCE.

' TRACK FOR BARN DOOR HANGERS..

No. 350588. Patented Oct. 12, 1-886.

UNITED STATES PATENT OFFICE.

JoHiv H. LAWRENCE, OF STERLING, rtmnors.

TRACK FOR BARN-DOOR HANGER8.

SPECIFICATION forming part of Letters Patent No. 350,538, dated October 12, 1886. Application filed ll'nne 16, 1886. Serial No. 205,371. (No model.)

To all whom it may concern:

Be it known that I, JOHN H. LAWRENCE, a citizen of the United States, residing at Sterling, in the county of Whiteside and State of Illinois, have invented certain new and useful Improvements in Tracks for Barn-Door Hangers; and I do hereby declare the following to be a full, clear, and exact description of the invention, 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 letters or figures of reference marked thereon, which form a part of this specification.

My invention has reference to tracks for barn-door hangers, and pertains more especially to the form of the track.

The object of my invention is to secure the strongest possible track and one which will neither sag vertically, nor warp horizontally, nor twist.

In connection with the track I exhibit a novel brace or bracket for attaching such track to the barn, though other forms of bracket might be easily substituted.

The advantage I claim for my track is not alone that its form secures the maximum of inherent strength in proportion to the quantity of the material employed, but that such form also renders the tracks susceptible of the,

most strong and permanent attachment to the 1 building.

As my track is adapted to be used with any of the double-tread rollers, and my invention pertains only to the track and its attachment, I do not deem itnecessary to show or describe the roller furtherthan to show its location.

Figure 1 is a cross section of a track exhibiting my invention. Fig. 2 is a perspective of the bracket. Fig. 3 exhibits the mode of attaching the track and bracket and the position of the supported roller thereon.

A is the track, which, to obtain the utmost of strength and durability, I-make of rolled steel, and therefore of one solid or integral piece. It will be noticed that the cross-section of the track A is in the form of a cross or four equidistantlongitudinal ribs, B, O, D, and E. The outer lateral rib, B, and inner lateral rib, C, constitute the track of the carryingrollers, the latter, being attached to the door in any of the usual modes.

The track A is intended to support and be traversed by a roller having two wheels or a double tread, and such wheels will have their tread respectively on the ribs Band C, as

shown in Fig. 3. The upper rib, D, projects upward between the wheels of the rollerF and serves to guide such rollers and keep them on the tracks. The lower rib, E, furnishes a convenient part to which to attach the outer end of the bracket G. The bracket G is formed of a steel plate bent to form two right angles and two straight ends parallel with each other, and one straight side.

The inner end, H, of 6 the bracket G is long enough to furnish suitathe lower rib, E, of the track A, and is placed against and parallel with such rib E and attached thereto by the transverse bolt or'rivet M, passed through the end K and rib E. The upper edge of the end K and so much of the side J as extends under the said lateral rib C are of uniform height and abut against the under side of the last-named rib and afford additional support thereto.

It is obvious that the ribs D and E give the track A great strength in a vertical plane, and the lateral ribs, B and O, in like manner afford great strength to said track against out ward or inward pressure.

The bracket G can be placed at any desired intervals along the track Aabout one foot apart will be found satisfactory.

It is not essential that the under sides of the ribs B 0 shall be, horizontal laterally, nor that the rib E shall have perpendicular sides, only that the outer end of the bracket G be seated firmly against the ribs 0 and E.

What I claim as my invention, and desire to secure by Letters Patent of the United States, is-

In a barn-door track, the combination of the integral bracket G set edgewise and having its side J lower at its outer extremity so. as to permit the passage of the door, and having its ends H and K bent at right angles with its roller, and said bracket be in position to exert 10 central portion to form seats for attachment to its greatest strength, substantially as shown, the rail and building, respectively, and the and fortlie purpose described. track A, formed of ion r integral equidistant In testimony whereof I afiix my signature in 5 longitudinal ribs, B, O, D, and E, the outer end, presence of two witnesses.

K, of the bracket G being projected under the J OHN I-I. LAXVRENGE. rib O and suitably attached to the rib E, whereitnesses: by the outer end of said bracket can be pro- A. B. SPIER,

jected between the door and its supporting EDWARD FROTIIINGIIAM.

Images