Slackless drawbar assembly

Railway draft appliances – Cushioned – Drawbars

Patent

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Details

213 50, 213 75R, 29446, B61G 920

Patent

active

055989373

ABSTRACT:
A slackless drawbar assembly joining railcars includes a drawbar, each end of the drawbar being joined to a yoke surrounding a cushioning unit and a follower block confined between forward and rear stops in a conventional sill pocket. The cushioning unit includes a front plate, an elongate spacer block and a compressed stack of elastomer pads sandwiched between the plate and block. Tightening wedges and shims are not used. The compressed pad stock holds the cushioning unit between the stops with a preload of about 50,000 pounds to prevent binding between the drawbar and the follower plate from causing derailments. The preload also holds the cushioning unit tight in the pocket.

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