Abstract: A pressurized hydraulic fluid supply is arranged to supply hydraulic fluid to a plurality of rescue tools from a single power source through a series flow connector block so as to permit operation of two or more tools simultaneously.

Abstract: A relief valve system for a pump in which control means are responsive to the occurrence of an excessive pressure on the inlet or discharge side of the pump to relieve this condition by dumping excess pressure to atmosphere.

Abstract: A transmission for a pump is constructed of an input member rotatably mounted in a housing and including a splined shaft portion and an input flange portion, an output member rotatably mounted in the housing in axial alignment with the input member and including a splined shaft portion and an output flange portion, and a sliding gear slidably mounted on the splined shaft portion of the input member at an internal splined portion thereof and having externally facing gear teeth. The sliding gear is movable between a "ROAD" position wherein its internal splined portion engages both the splined shaft portions of the input member and the output member and a "PUMP" position wherein its internal splined portion only engages the splined shaft portion of the input member and the gear teeth thereof are in engagement with gear means for driving the pump shaft.

Abstract: A foam liquid proportioner including a positive displacement water motor coupled to a positive displacement foam liquid pump is provided with a gear drive mechanism which steps up the RPM of the foam liquid pump to be much higher than the RPM of the water motor to a speed so as to reduce the ratio of the slippage of foam liquid to the total flow of the foam liquid through the foam liquid pump.

Abstract: An in-line ball valve having a locking device which permits the positioning of the valve member to a set position by operation of a valve handle with the valve member being locked in this position against any creeping movement by reason of flow-induced forces acting on the valve member. The valve also includes a handle design which permits the handle to be positioned on the shaft of the valve member in eight different handle configurations to provide for simplicity of installation and ease of adaptability to push-pull controls.