Caterpillar Tractor Co.

Roland E Hasselbacher

Lucien B Shuler

James A Coulter

A brake system for a vehicle having spring applied, pressure releasable brakes (10) including a manual pump (28), a terminal board (14) having ports (16,18,20) terminating the system fluid pressure line (22), the brake pressure line (12) and the pump pressure line (76), and a U-tube (120) connecting two of the ports on the terminal board. In the alternative embodiment, an emergency brake release system for a vehicle having spring applied, pressure releasable brake (130) including a pump (166), and a control valve (140) for selectively connecting the pump (166) to the brakes (130) while connecting the fluid pressure supply line (133) to a reservoir return line (136). The valve (140) includes modes for connecting the brakes (130) to the supply line (134) through an orifice (192), and a brake outlet line (138) to the reservoir return line (136) for bleeding the brakes (130), and for isolating the supply line (134) while venting the brake line (133), for checking system pressure. A limit switch (200) prevents engine starting while the brakes (130) are manually released.

Parking brake system

A holder for the assembly of a conventional flame cutting torch tip (14) which provides release of the tip, and can include water cooling (42-44) of the tip during machine cutting operations. Although such tips often become fouled, the prior art has not provided sufficiently quick release for replacement purposes. The tip is held in abutment against the torch by a plurality of cam (48) actuated clamping followers (56) which wedge against the shoulder (68) of the conventional flame cutting tip when the holder is in a clamping position. The cam is operated by rotating a spring-biased (26) actuating member, preferably a circumferential ring (22), the ring being rotatable between a clamping position and a releasing position, and normally being biased by said spring into the clamping position.

Flame cutting tip and torch holder

A fire suppression system for a machine includes a source of pressurized fire extinguishing fluid. Apparatus is provided for controllably directing the fluid to preselected areas of the machine and automatically stopping the machine in response to release of the fluid.

Fire suppression system

An equalizer bar is mounted on a track roller frame bearing by a split cap arrangement. The split is angled relative to a transverse axis of the vehicle, so that fastening means may be easily reached sidewardly of the track frame to disconnect the equalizer bar from such bearing means. In one preferred embodiment the equalizer bar main body, to which the cap is removably secured, overlies and is in contact with the bearing means to provide that, upon removal of the cap, the equalizer bar rests on the track roller frame.

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Brimfield, IL, United States of America

Roland E Hasselbacher