US1328975A - Manufacture of railway draft-gear yokes - Google Patents

Description

H. T. ANDERSON. MANUFACTURE OF RAILWAY DRAFT GEAR YGKES.

APPLICATION FILED MAY 7, "ISLE- Patented Jan. 27, 1920.

, 2 SHEETSSHEEI 1- H. TfANDERSON.

MANUFACTURE OF RAILWAY DRAFT GEAR YOKES. APPLICATION FILED MAY 7. 1918.

1,328,975. Patented Jan. 27, 1920.

2 SHEETS-SHEET 2- ITEI) STATES PATENT OFFICE.

HARRY '1. ANDERSON, OF BUTLER, PENNSYLVANIA, ASbIGNOR IO HARRY VISSERING & COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MANUFACTURE OF RAILW'AY DRAFT-GEAR. YOKE-S.

Application filed May 7, 1918.

T all whom it may concern:

Be it known that I, IIARRY T. ANDERSON,

a citizen of the United States, and a resident of Butler, in the county of Butler and State of Pennsylvania, have invented certain new and useful Improvements in the Manufacture of Railway Draft-Gear Yokes, of which the following is a full, clear, and exact description.

The invention relates to the manufacture of railway draft-gear yokes and one of its Objects is to provide an improved method of forming yokes so as to avoid waste of metal.

A further object of the invention is to provide an improved method of forming draftgear yokes in which the side-members have openingstherein to receive the buffer plates and shock-absorbing devices, of the type exemplfied in an application filed by me Feb. 26, 1916, Serial No. 80,615.

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

In the drawings: Figure 1 is a perspective of a blank of metal used in forming the draft-gear yo re. showing the form into which the blank is out before it is formed into a yoke. Fig. 3 is a plan of the blank shown in Fig. 2 after it has been bent to accommodate bending dies. Fig. l is a detail section showing the operation of separating the bars of the blank. Fig. 5 is a perspmtive showing the blank after the upper and lower bars of the blank have been spread apart. Fig. 6 is a perspective of the blank after it has been doubled and bent, and completed into a yoke with a columnar member at the back and the inserts for the front ends of the yoke-sides. Fig. 7 is a perspective of one of the front inserts. Fig. 8 is a perspective of the columnar insert. Fig. 9 is a plan, parts being shown in section, of a complete draftgear embodying the yoke made in accordance with the improved method.

A bar or strip of suitable metal, such as steel or wrought iron, of the shape shown in Fig. 1, is cut of sufficient length for a blank adapted to form continuously two integral sides of a yoke. The ends of the blank 15 are-trimmed or rounded, as at 16, and openings 18 are cut through the blank adjacent its ends. A longitudinal slot 17 is Specification of Letters Patent.

Fig. 2 is a perspective- Patented Jan. 27, 1920.

Serial No. 232,997.

cut through the blank and the latter is also slit, as at 19, between the openings 18 and the slot 17. The metal adjacent the ends f the blank may be swaged or upset, as at 20, to form a reinforcement which will be disposed at the front of the key-slots when the yoke is completed, as shown in Fig. 6. As a result of this cutting, the blank will comprise an upper bar 21 and a lower bar 22 which are integrally connected at the ends 23 of the blank. These bars are bent out of alinement, as shown in Fig. 3, to provide mutual clearance for oppositely moving spreading-dies a and b, which are adapted to engage the inner edges of the bars 21 and 22 respectively, as shown in Fig. 4. These dies are operated to spread the pertions of the blank into the form shown in Fig. 5. After this spreading operation, the upper and lower bars will be forced back into vertical alinement. When the blank has been thus shaped, it will comprise upper and lower longitudinal bars, ends 23 and outwardly convergent portions 2 1 which integrally connect said bars and ends.

Next, tapered struts 25, which are shaped to fit into and fill the space between the converging portions 24 and have slots 26 adapted to register with the openings 18, are inserted between said convergent portions and are secured in the blank by rivets 27. These slots 26, with the openings 18, are adapted to form key-slots in the sides of the yoke.

Next, the flat blank with the inserts therein is doubled over and bent from its center to form alined yoke-sides and to bring the key-slots and front ends of the blank into transverse alinement, as shown in Fig. 6. A member 28 adapted to extend between the upper and lower bars, at the bend in the yoke, is then secured in position shown, by lugs 29, which are bent into position, shown by dotted lines in Fig. 8, to lock the member in the yoke. This member 28 forms a columnar connection between bars 21 and 22, and serves as a thrust block for the rear follower plate. The openings 30 left in the sides of the yoke, when the bars 21 and 22 are spread, are of sufficient height and length to receive and retain therebetween follower plates and draft-gear and to permit movement of the yoke relatively to the follower plates.

The product of the method is applied in Cir 9 to a draft rigging comprising drait' beams 31, a coupler having a shank which is secured to the yoke by a key which extends through the shank, the openings 18 in both sides of the yoke and through slots in the draft-beams, a front buffer plate 34 adapted to engage front stops 35, a rear bufier plate 36 adapted to engage the rear stops 3? and a draft-gear 38 of any suitable type, between the plates.

The invention exemplifies a method of forming draft gear-yokes, in which portions of a bar are expanded or spread to form openings and by which the waste of metal incident to forming large openings by cutouts is avoided. Also one in which substantially all of the metal is utilized in the for mation of a forged one-piece yoke.

The invention is not to be understood as restricted to the details set forth, since these may be modified within the scope of the ap pended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:

1. That improvement in the manufacture of railway draft gear yokes which consists in cutting a blank of metal longitudinally leaving the ends connected, spreading the longitudinal portions apart to form an opening between them and doubling and bending the blank to form a one-piece yoke having a pair of sides with openings therein.

2. That improvement in making railway draft-gear yokes which consists in cutting a bar of metal longitudinally adjacent its ends and leaving the ends uncut, and spreading apart the portions adjacent the out to form spaced substantially parallel bars and converging portions connecting the ends and said bars.

3. That improvement in making railway draft-gear yokes which consists in cutting a bar of metal longitudinally adjacent its ends and leaving the ends uncut, spreading apart the portions adjacent the cut to form spaced substantially parallel bars and converging portions connecting the ends and said bars, and doubling and bending the blank transversely to bring its ends into transverse alinement, to form a one-piece yoke having a plurality of open sides therein.

4. That improvement in making railway draft gear yokes which consists in cutting openings adjacent the ends of a blank, cutting the blank longitudinally between said openings, leaving the ends connected, spreading the portions apart adjacent the cut, and doubling and bending the blank to bring said openings into transverse alinement.

5. That improvement in the manufacture of railway draft-gear yokes which consists in cutting a blank of metal longitudinally leaving an end of the metal connected, spreading the longitudinal portions apart to form an opening between them, and securing an insert in said opening adjacent said end.

(3. That improvement in the manufacture of railway draft-gear yokes which consists in cutting a blank of metal longitudinally leaving the ends connected, spreading the longitudinal portions apart to form an opening between them, and securing inserts in the ends of the opening, and doubling and bending the blank to form a yoke having integral sides each having an opening thereln.

7. That improvement in the manufacture of railway draft-gear yokes which consists in cutting a blank of metal longitudinally leaving the ends connected, spreading the longitudinal portions apart to form an opening between them, securing inserts in the ends of said opening, securing a columnar member 'medially to the blank and doubling and bending the blank to form integral sides.

HARRY T. ANDERSON.

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