US1375361A - Brake-rod jaw - Google Patents

Description

v s. H. CAMPBELL.

BRAKE ROD JA-W.

APPLICATION FILED OCT. 15.1919.

Patented Apr. 19, 1921; 15 14 11 'INVENTOR S.H.CA MPBELL mg I 1 UNITED STATES STERLING H. CAMPBELL, or s'r. LOUIS, MISSOURI.

BRAKE-ROI) JAW.

Specification of Letters Patent.

Patented Apr. 19, 1921.

Application filed October 15, 1919. Serial No. 330,944.

To all whom it may concern:

Be it known that I, STERLING H. 'CAIHL.

BELL, a citizen of theUnited States of America, residing at the city of St.Lou1s, State of Missouri, United States of America, have invented a certain new and useful Brake-Rod Jaw, of which the following 18 such a fu1l, clear, and exact description as will enable anyone skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to a brake rod aw and more particularly. to a forged metal brake rod jaw of the nonwelding type.

One object of my invention is the production of a suitable forged'metal blank from which the brake rod 'jaw may be formed by boring or punching pin eyes and rod eyes in the blank. Another object of my invention is to so form a blank that one size and shape of blank may be utilized to produce brake rod jaws for varying sizes of brake rods. Another object of my invention is to provide improved means for securing the brake rod in the jaw to prevent retrograde movement of the rod relative to the jaw.

In the accompanying drawings which illustrate two forms of brake rod jaws made in accordance with my invention, Figure l is a side view of the blank for producing my preferred form of brake rod jaw, Fig. 2 is an edge view of the same, Fig. 3 is a side view of the completed jaw the brake rod being shown in position. Fig. 4 is-an end view of the part shown in Fig. 3.. Fig. 5 is a plan view of a blank for producing a modified form of jaw. Fig. 6 is a section taken on the line 6-6 of Fig. 5, Fig. 7 is a side view of the completed jaw formed from the blanks shown in Figs. 5 and 6, the brake rod being shown in position, and Fig. 8 is an edge view of the jaw shown in Fig. 7, the brake rod being omitted.

Referring first to Figs. 1 to 4, inclusive, 10 indicates a rod base which has formed integral With it a pair of arms 11 each terminating in an enlar ed end 12 preferably circular in shape. ituated between the arms 11 and formed integral therewith is a rod seat 13. All the parts of the blank taper from a central dividing line 14, so

that the forming die may have the necessary draw, and consequently the central parts of the enlarged ends 12 project be yond the sides of the arms 11 as indicated at 15 in Fig. 2. Thissurplus metal, however, is removed when the pin eyes 16 are formed in the ends 11 by punching or bor-,

ing, as indicated by the dotted lines in Fig. 4:. 17 are rod eyes which are formed in the rod base 10 and adapted to receive the two portions of the brake rod 18 resulting from the formation of the return bend 19 which seats against the rod seat 13. The rod base 10 is made of such size and shape that various sized rod eyes 17 may be formed therein to cooperate with the same rod seat 13 so that one form and size of blank may be used to produce rod jaws for rods of varying sizes. The part 20 of the rod base lying between the two rod eyes 17 forms a rod bending support at one side of recesses 21 into which a portion of the rod 18 is adapted to be bent, the rod seat 13 forming a rod bending su port at the other side of said recesses. y striking the rod 18 at the point 22 with a suitable tool. the rod is bent into the recesses 21 thus effectively preventing its retrograde movement relative to the aw.

In Figs. 5 to 8, I have shown a modified form of brake rod jaw which is formed from a blank forged out of flat sheet metal as shown in Fig. 5. In this form of jaw the pin eyes 16 and rod eyes 17 are formed during the operation of forging the blank and at the same time openings 23 are formed in the blank to receive a bolt or rivet to form a rod seat 24 in lieu of the integral rod seat 13 of the form of jaw hereinbefore described. In this form of jaw the open space 25 between the part 20 of the rod base and the rod seat 24 forms the recess into which a portion of the rod is adapted to be bent by striking it at the point 22, to prevent its retrograde movement relative to the jaw.

Having fully described my invention, what I claim as new and desire to secure by LetterS Patent of the United States is:

1. A brake rod jaw having a pair of arms, a rod seat arranged between said arms,a rod base provided with a pair of openings each completely surrounding one branch of a looped rod and a retaining recess between said base and seat into which the rod is adapted to be bent to prevent retrograde movement of the rod relative to the jaw.

2. A brake rod jaw comprising a pair of arms, a rod seat located between said arms, a rod retaining base provided with a pair of openings each completely surrounding one branch of a looped rod, a recess forward of said base into which the rod is" adapted to be bent, said rod seat forming a rod bending support at one side of said recess, and a part ofsaid' base forming a rod bending support at the other side of said recess. a Q t a 3. A brake rod jaw comprising HnPELlI'JOf arms, a rod seat, located betweensaid arms and formed integral therewith, an integral rod retaining base, airecess forward of said base into which the rod is adapted to be bent, said rod seat forming a rod bending support at one side of said recess, and a part of said base forming a rod bending support at the other side of said recess.

4. A brake rod jaw comprising a pair of arms provided with eyes, a rod seat situated between said arms to receive the curved part of the returned bend of the brake rod, a rod retaining base provided with rod eyes completely surrounding both portions ofthe rod forward of said returned bend, said portions of the rod being parallel STERLING H GAM PBELL, Ls-1

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