US571709A

US571709A - William towler

Info

Publication number: US571709A
Authority: US
Publication date: 1896-11-17
Anticipated expiration: 1913-11-17

Description

(No Model.)

W. IOVi'l'LlEiR. COMPOUND TRAMWAY RAIL.

No. 571,709 Patented Nov. 17, 1896.

WMQAH ATENT FFIGE.

YVILLIAM TOVLER, OF LEEDS, ENGLAND.

COMPOUND TRAMWAY-RAIL.

SPECIFICATION forming part of Letters Patent No. 571,709, dated November 17, 1896.

Application filed August 81, 1896. Serial No. 604,429. (No model.)

To (all, whom it may, concern.-

Be it known that I, WILLIAM TOWLER, a subjectof the Queen of Great Britain and Ire land, residing at Leeds, in the county of York, England, have invented an Improvement in Compound Tra1nway-Rails, of which the following is a specification.

My invention relates to coinpou nd tramwayrails in which the head or wearing part is formed separate and removable from the body of the rail, and m ore particularly to compound tramway-rails the body of which consists of a girder. The well known advantages of compound tramway-rails have hitherto not secured for them a general use, owing to the .fact that the means or method adopted for securing the head to the body have in a mod erate time become defective or loose under ordinary working conditions; and it is the object of my present invention to provide for the attachment of the head to the body or girder portion in such a manner that the at tachment will remain good and secure until the head has been worn out by trafic and re quires to be replaced.

In the drawing, which represents a vertical cross-section of a rail embodying my invention, a designates the vertical flange, and b the head, of the girder. The sides of the head are vertical.

o is the separable or wearing head of the rail, which is provided on the under side with two side projecting flanges or rib d.

In order to firmly secure the wearing-head c to the girder-head h, I form the bottom of the head I) on both sides I: inclined slightly to the horizontal, a suitable inclination being from twenty to twenty-five degrees, though I do not limit myself to this exact inclination, and I bend or fold over the lower endsof the ribs or flanges CZ, after these have been pressed close to the sides of the head I), so that the lower ends of the ribs or flanges d fit close and tight against the just-mentioned inclined under sides of the head 19. This bending or folding over may be effected by special clamp or rolling tools, but as the design of such may be varied and they form no part of my present application any description of such is omitted. For the same reason no description of the tools for removing the rail-head 0, when worn out, is added 5 but I propose to remove the head 0 either by wedging off the head or bending back, 2 a, outward, one of the ribs or flanges d, or cutting through the head at the bottom of the wheel-flange groove e, or by cutting off one of the side flanges or ribs (Z level with the top of the head h.

I am aware that compound tramway-rails have been proposed or used in which the removable head has been provided with depending side flanges, with boltsor clamps passing through or from these securing the head to the bodyor girder oi the rail, besides the use of such side flanges pressed against the inclined sides of the head of a girder dovetailed in section. I do not therefore claim such flanges broadly.

What I do claim as my invention, and desire to secure by Letters Patent, is-- The combination to form acompound tramway-rail of a girder having a head I) approximately rectangular in section and with the under side i of the said head formed somewhat inclined to the horizontal with a separate removable head having depending side flanges or ribs d bent or folded close against the vertical sides and inclined under sides 71 of the girder-head substantially as described and illustrated.

WILLIAM TQWLER. lVitnesses:

J. CLARK JEFFERSON, NED SHonsMI'rH.