Slack adjusters11/21/2023 ![]() A second urging device overcomes the force of the first urging device and urges an abutting surface on the positioning device into engagement with an adjacent abutment surface. A first urging device is positioned to urge the positioning device into a disengaged position. Pair of opposite facing abutment surfaces are positioned within the hollow housing. A positioning device carrying a pair of opposed abutting surfaces is threadedly engaged with a threaded portion of the elongated rod. The present invention teaches a double-acting compression actuatable slack adjuster to adjust the slack in the brake rigging of a railway vehicle which includes a pair of elongated members movable with respect to each other in a longitudinal direction. slack adjusters mechanical and self-acting in one direction by means of linear adjustment with screw-thread and nut
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