US636070A

US636070A - Brake-lever.

Info

Publication number: US636070A
Application number: US71679999A
Authority: US
Inventors: Robert C Schenck
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-05-15
Filing date: 1899-05-15
Publication date: 1899-10-31
Anticipated expiration: 1916-10-31

Description

No. 63 ,070. Patented Oct. 3!,1899.

Bi 6. SGHENCK.

BRAKE LEVER.

(Application filed May 15, 1899.)

(No Model.)

UNITED STATES I ROBERT C. SOHENOK, OF DAYTON, OHIO.

BRAKE-LEVER.

SPECIFICATION forming part of Letters Patent No. 636,070, dated October 31, 1899. Application filed May 15, 1899- Serial No. 716,799. (NomodeL) To (0Z4 w/wm, it may concern.-

Be it known that 1, ROBERT C. SoHENoK, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Brake-Levers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to the construction of brake-levers for railway-cars, wherein the great desideratum is lightness combined with strength; and it has for its object the production of such levers of malleable iron, whereby the purpose above stated is accomplished.

The novelty of my invention consists in constructing the levers of malleable iron,with a comparatively thin central web with peripheral flanges surrounding it and projecting from its edges on both sides and transverse strengthening-ribs between said flanges on both sides of the web, which ribs on the opposite sides of the webs run in opposite directions, so as to bisect each other, all as will be hereinafter more fully set forth, and specifically pointed out in the claim.

In the accompanying drawings, Figure 1 is a side elevation of a brake-lever embodying my invention. Fig. 2 is a sectional plan view of the same on the dotted line at m of Fig. 1. Fig. 3 is a side elevation of a brake-lever embodying my invention in a modified form.

The same letters of reference are used to indicate identical parts in all the figures.

The brake lever herein represented has a comparatively thin central web A, surrounding which at its periphery and projecting from both sides at right angles is a flange a, merging at one end of the lever into a solid portion 1), having a perforation c, and at its opposite end into a solid portion d, having a perforation 6, these two perforations serving as the pivotal connections for the operatingrods. Between these two end portions 1) 01 there is another solid portion f, having a central perforation g to serve as the bearing for the fulcrum pivot of the lever. This construction is common to the three figures shown.

In Figs. 1 and 2, h are transverse ribs on each side of the web A, extending from the solid portions 1) to the solid portions f between the flanges a and bisecting each otheron the opposite sides of the web, as shown by the dotted lines in Fig. 1. Between the solid portions f and b there are a series of transverse ribs t' between the flanges and on both sides of the web, which bisect each other on opposite sides, as seen by the dotted line in Fig. 1. The majority of these biseetions occur on the dotted line 0000, which is the central line of the lever, and thus the lever is strength ened not only by the truss formation of the ribs, but by this increase of metal afforded by the presence of the ribs, as will be readily understood.-

In Fig. 3 the only variation is in having the ribs 2 on each side of the web run in azigzag manner from one flange to the other, as shown. The bisection of the ribs on both sides of the web occurs on the middle line of the lever, as seen by the dotted lines.

I found from actual experience that in constructin g levers of this character of malleable iron in the manner described I am enabled to reduce their weight very materially and ohtain great strength, both against fiexure and breakage. The ribs arranged transversely,

as I have described, act as struts or ties to brace the whole structure and give it great rigidity.

Having thus fully described my invention, I claim As a new article of manufacture, a brakelever constructed of malleable iron having acentral web with thickened perforated end and intermediate portions to form pivotal bearings, and with peripheral flanges on both sides of the weband transverse ribs on both sides of the web extending between the flanges, and arranged with their directions of length to intersect each other on opposite sides, substantially as described.

ROBERT C. SOHENOK.

Witnesses:

W. B. EARNsHAw, W. H. OAssEL.