US 5,180,036 AGranted

Cam operated rail clamping device

OwnerRonald J. Bobeninventor

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Abstract

This invention is a cam operated rail clamping device for preventing movement of a structure on a rail comprising a base, a vertically disposed post secured to and projecting upwardly from the base, a tube rotatably and slidably mounted on the post, an air (or hydraulically) operated lift cylinder for raising the tube, a vertically disposed beam extending upwardly from the base and secured thereto, a horizontally disposed flange secured to the lower end of the tube, a clamping jaw carried by the flange and provided with a high point and a plurality of teeth for engagement with a first side of a rail, the flange being mounted for rotation about the post to bring the high point of the jaw into wedging action with the first side of the rail when the flange engages a top portion of the rail, a wearing shoe carried by the base for engagement with a second side of the rail, and a microswitch for indicating the position of the clamping jaw.

Claims9

Dependent claims

A cam operated rail clamping device for preventing movement of a structure on a rail, comprising:

(a) a base;
(b) a vertically disposed post secured to and projecting upwardly from said base;
(c) a tubular member rotatably and slidably mounted on said post;
(d) means for raising said tubular member;
(e) a vertically disposed beam extending upwardly from said base and secured thereto;
(f) a horizontally disposed flange secured to the lower end of said tubular member;
(g) a clamping jaw carried by said flange and provided with a high point and a plurality of teeth for engagement with a first side of said rail, said flange being mounted for rotation about said post to bring said high point of said jaw into wedging action with said first side of said rail when said flange engages a top portion of said rail;
(h) means carried by said base for engagement with a second side of said rail;
(i) means for positioning said clamping jaw in a lowered operative position and raised inoperative position;
and,
(j) means for indicating the rotational position of said clamping jaw about said post when said clamping jaw is in said lowered operative position, said means for indicating the rotational position of said clamping jaw comprises second and third indicator lamps, said second indicator lamp being energized when said structure moves in one direction on said rail and said third indicator lamp being energized when said structure moves in the opposite direction.

8 more elements

Dependencies are inferred from the claim text.