US1496413A - Draft mechanism - Google Patents

Description

June 1924.

H. s'. HART DRAFT Mncmmrsu Filed oct., 9, 1922 Patented `inne 3, 192%.

entran sraras HARRY s. HART, ory cnicas-o, iLLrNors- DRAFT `MECHANISM- i Application fue@ October 9,1922. Serial No. 593,219.

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e it known that l, HARRY S. HARiga citi zen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and luseful Improvements in Draft Mechanism, of which the following is a specification.

This invention relates'fto a new and improved draft mechanism for railway cars and more specifically to a construction of the supporting means for coupler shanks in said mechanism.Y

In earlier forms of striking castings, a separate detachable carry iron was provided since the rear of the coupler shank carried large shoulders and it was not practical therefore to introduce the shank axially through the opening in the striking casting.

iVith such constructions it was possible to replace the carry iron when it became worn without the necessity for replacing` the entire striking casting. This separable construction was undesirable, however, for the reason that the carry iron retaining` members were subject to wear, breakage or displacement with consequent failure to retain the carry iron in place. Loss of the carry iron' rendered it impossible to couple the car since in order to couple properly the coupler head must be maintained within relatively narrow limits as to vertical height.

`While the integral striking casting and carry iron obviates the difliculties incident to possible loss of the carry iron, it presents other difficulties in lthat the carry iron is subject to Wear. "When this wear becomes so great that the coupler head hangs lower than the proper coupling height, it then becomes necessary to replace the entire striking casting andy carry iron. This replacement is exf pensive and requires that the car be placed out of service for a relatively long period.

In order to secure the advantages of both the integral and separable carry iron structures without the disadvantages of either, it has been proposed to provide wear plates carried by the integral carry iron, the wear plates being removable when they become worn to such an extent as to lower the coupler head below the proper height. A construction of this character is shown in the patent to Neikirk, No. 1,419,508, granted J une 13, 1922.

In the Neikirk construction the wear plate is housed in the carry iron and the carry iron becomessubject to wear when the wear plate has been worn down to the level of the embracing carry iron portions. Further, the

plates so related that the wear plate embraces a portion of the carry iron.

It is an additional object to provide a construction of this character in which the wear plate is supported from the carry iron by an Vautomatic centering rocker and in which the wear plate embraces a portion of both the rocker and the carry iron.

It is a further object to provide a construction in which the rocker embraces a portion of the carry iron and is in turn embraced by th'e wear plate.

Other and further objects will appear as the description proceeds.

have illustrated a preferred embodiment of my invention in the accompanying drawings, in which- Figure l is a face View of my improved construction;

Figure 2 is a plan view partly in section taken on line 2 2 of Figure 1; and

Figure 3 is a vertical section taken on line 3 3 of Figure 1.

Referring to the drawings, the striking casting 5 has the carry iron 6 formed integrally therewith. IThe striking casting 5 is secured to the end sill by rivets 8. The lateral arms of the casting are secured to the center sills 9 by rivets 10. The draft lugs 11 are' secured to the center sills 9 by the rivets 12. The carry iron 6 is provided with the upwardly extending flange 13. The upper face of the carry viron upon either side of the iange is formed with the arcuate depressions 14 adapted to receive the rounded bearing surfaces 15 of the center ing rockers 16.

The wear plate 17 is carried upon the upper face of the rockers 16 and is provided with the upwardly extending lugs 18 em` bracing the coupler shank 19 which has been indicated in broken lines in Figure 1.

As best seen in Figure 3, the wear plate 1'? is providedV with the dawnwardly extending flanges 2O which embrace the upper portions of the rockers 16 and also embrace the upper portion of the carry iron flange 13.

In this form Oi' constructionl a portion or' the carry iron is housed by the rockers and portions of both rockers and carry iron are housed by the wear plate. The readily removable parts, the rockers and wear plates thus protect the integral carry iron from" supporting the Wear plate, the wear plate housing a portion of the supporting means. 3. Ina railway car, an integral striking ycasting and carry iron, automatic centering means comprisingl a rocker and a wear plate, the rocker embracing a portion of the carry iron.

4. In a railway car, an integral striking casting and carry iron, automat-ic centering means comprising a rocker and a wear plate, the rocker embracing a portion of the carry iron, and the wear plate embracing the rocker. y

5. In a railwayl car, an'integral striking casting and carry iron, automatic centering means coii'iprising a rocker and a wear plate, a flange on the carry iron, the rocker embracing saidange, and the wear plate embracing the rocker and flange;

Signed at Chicago, Illinois, this 4th day of October, 1922. c A HARRY S. HART.

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