US1335213A - Method of forming a forged fulcrum - Google Patents

Description

L. L. WHITNEY.

METHOD OF FORMING A FORGED FULCRUM.

APPLICATION FILED APR.26, 191a.

1,335,2 1 3. Patented Mar. 30, 1920.

2 SHEETS SHEET I.

L. L. WHITNEY.

METHOD OF FORMING A FORGED FULCRUM.

APPLICATION FILED APR.26.1918.

1 ,335,2 1 3 Patented Mar. 30, 1920.

2 SHEETS-SHEET 2.

1 '1 v m I, J6]? J5 12M 7 I I lore/0i MM @www UNITED STATES PZIENT OFFICE.

LOREN I.. WHITNEY, or HAMMOND, INDIANA, ASSIGNOR TO AMERICAN STEEL- FOUNDRIES, or CHICAGO, ILLINOIS, A CORPORATION OF *NEWJERSEY.

METHOD OF FORMING A FORGED FULCRUM.

Application an April 26,

To all whom z't may concern! Be it known that I, LOREN L. WHITNEY, a citizen of the United Stateskresiding at Hammond, in the county of La e and State of Indiana, have invented certain new and useful Improvements in Methods of Forming a Forged Fulcrum, of which the followtion will be apparent from the following deing is a specification.

This invention relates to bandedforged fulcrums. v I

. One of theobjects of myinvention is to improve and simplify the method of making forged .fulcrums.

Another obj ect is to provide a forged steel fulcrum adapted to meet the various requirements for successful commercial operation.

Generally speaking, these and other objects are accomplished by employing a method of forming a forged steel fulcrum in cluding first providing a blank, bending the same into the form of two arms connected at one end, and then forming a loop or band for embracing a beam compression member by joining the free ends of said arms.

The invention is illustrated on the accompanying sheets of drawings, in which Figure 1 is an edge elevation, and Fig. 2 a plan view of a blank, the ends of which have been beveled;

Fig. 3 is a plan view, and Fig. 4 is a side elevation of the same blank after one end thereof has been given a certain predetermined twist;

' Fig. 5 is a plan view, and Fig. 6 is a side elevation of the same blank after the other end has been given a certain predetermined twist;

Fig. 7 is a plan View, and Fig. 8 is a side elevation of the blank after it has been bent at its middle point to form two arms;

Fig. 9 is a plan view, and Fig. 10 a side elevation of the same blank after the points of twist of the arms have been squared a predetermined amount;

Fig. 11 is a plan view, and Fig. 12 a side elevation of the same blank after the free ends of the arms have been welded together to form a band for the reception of" the brake beam compression member;

Fig. 13 is a plan view and Fig. 14 a side elevation of the blank after the seat for the tension rod has been formed;

Fig. 15 is a plan View and Fig. 16 is a side elevation of the completed fulcrum after Specification of Letters Patent. Pat t 30, 9

1918. Serial No. 230,987. l

the ferrule has" been set in place and the arms punched for the brake lever pivot, the compression member of the brake beam being shown in dotted lines; and

Fig. 17 is a rear view of the banded steel fulcrum.

The various novel features of my inven scription and drawings and will be particu larly pointed out in the appended claims.

In forming my fulcrum a piece of stock in the form of a steel blank 10 is provided, and the ends thereof beveled as at 11 for making a lap joint to be referred to hereinafter. One end12, of the blank 10 is then given a certain predetermined twist, as

shown in Figs. 3 and 4, whereupon the other end 13 of the blank is given a corresponding twist in the opposite directiou' Thenthe blank is bent at its middle point, as shown in Figs. 7 and 8, to form two parallel arms 14 and 15, the twisted ends 12 and 13 of which are parallel with respect to each other. The arms 14 and 15 are spaced an amount 'sufiicient for the reception of a brake lever. The arms 14 and 15 at the point of twist form one wall 16 of a band for embracing the compression member of a brake beam. This wall 16 is next given a more definite straight line shape, as shown in Figs. 9 and 10, whereupon the free ends 12 and 13 of the arms 14 and 15, respectively, are bent into the form of a square loop, and the beveled ends 11 welded together to form a band for the reception of thebrake beam compression member, the rear wall 17 of the band being straight and vertical for engaging the web of the brake beam compression member. A seat 18 is then formed in the of a brake beam tension member, as shown in Figs. 13 and 14, Whereuponthe arms 14 and 15, as shown in Figs. 15 and 16, are perforated for the reception of a brake lever member 22 and the ferrule 19 for causing the band of a forged steel fulcrum to grip the compression member in a manner to pre- 'ventrelative movement between the parts.

By means of this method a forged steel bent portion of the blank for the reception -crum Consisting first in providing a blank,

then bending the same into the form of two arms, and then forming a band for embracing a brake beam compression member by joining the freeends of said arms.

2. The method of forming a forged fulerum consistingfirst in providing a blank,

then beveling its ends, then bending the blank to form two arms, and then forming a band for embracing a brake beam member by joining the beveled ends of said blank.

3. The method of forming a forged fulcrum consisting first in providing a blank, then beveling the ends-of said blank, then twisting the'ends of said blank in opposite directions, then bending the blank at its middle point to form two arms, and then forming a band for embracing a brake beam member by joining the beveled ends of said arms.

4. The method of forming a forged fulcrum consisting first in providing a blank, then bending thesame intermediate its ends to form two arms, then forming a band for embracing a brake beam compression member by joining the free ends of said arms, and then forming a seat in the bent end of bending the same intermediate its'ends to form .two arms, joining the ends of said arms to form a band for the reception of a brake beam member, and then securing a locking key ferrule to the arms of said fulcrum.v i 1 7. The method of forming a forged fulerum consisting first in providing ablank,

beveling the ends thereof, then twisting the ends in opposite directions, thenbending the blank intermediate its ends, then bending the twisted ends and joining the beveled portions thereof to form a band'for the reception of a brake beam member, then forming a seat for the reception of another brake beam member, and then securing to said arms a key ferrule member.

Signed at Hammond, Indiana, this 23rd day of April, 1918.

LOB-EN L. WHITNEY.

WVitnesses WILLIAM C. LEIMBAOH, J. M. EBERT.

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