Lightweight and topless draft arm

Details Lightweight and topless draft arm Lightweight and topless draft arm

1997-10-02

1999-07-27

Graham, Matthew C.

Railway draft appliances

Cushioned

Drawbars

213 66, 213 69, B61G 900

Patent

active

059275219

ABSTRACT:
A lightweight and topless draft arm is disclosed for use in a railway car. The draft arm includes an open top surface with the metal layer removed, lateral support members and tiebars transversing the side walls for greater draft arm strength, and thinner side walls below the keyslots. Removal of the top surface of the draft arm eliminates the traditional double layer of material formed by the bottom of the car body and the top of the draft arm. Effectively, the bottom of the car body becomes the top of the draft arm resulting in a lighter weight railway car.

REFERENCES:
patent: 779038 (1905-01-01), Guinn
patent: 929245 (1909-07-01), Pulliam
patent: 929246 (1909-07-01), Pulliam
patent: 970128 (1910-09-01), Shallenberger
patent: 1074709 (1913-10-01), Gaines
patent: 3561370 (1971-02-01), Reynolds
patent: 3703239 (1972-11-01), Furniss
patent: 4029022 (1977-06-01), McClurg
patent: 4042117 (1977-08-01), McClurg
patent: 4128062 (1978-12-01), Roberts
patent: 4252068 (1981-02-01), Nolan

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