Abstract: A switching valve having a bottom plate, an intermediate plate and a top plate. A distributor rotatably mounted in the intermediate plate. The bottom plate has an upper surface, and the distributor has a lower surface which interface with each other. The bottom plate has an inlet and an outlet spaced from each other and each having an inlet conduit extending from the inlet to the upper surface of the bottom plate and an outlet conduit extending from the outlet to the upper surface of the bottom plate. The distributor having an inlet conduit, an outlet conduit and a connecting conduit connecting the two together. The distributor inlet conduit is in communication with the bottom plate inlet conduit.

Abstract: A gauge for determining the position of a workpiece within a fitting. The gauge comprises a body portion having a reference plane, a wall spaced from the reference plane and a fitting-receiving assembly. A shaft receiving bore is provided in the body portion which extends inwardly from the reference plane to receive at least some of the fitting-receiving assembly. The fitting-receiving assembly has a fitting-receiving portion extending outwardly from the reference plane for receiving a fitting thereon. The fitting-receiving portion has an end spaced from the reference plane and is mounted for reciprocal movement within the shaft-receiving bore relative to the reference plane. A stop assembly is provided which is operatively associated with the fitting-receiving portion and is movable therewith. The stop assembly has stop means spaced inwardly from the end on the fitting-receiving portion. A marking bore is provided in the body portion which extends inwardly for the wall.

Abstract: A plug valve having a body with an inlet, an outlet and a plug-receiving opening which intersects the inlet and outlet. A plug is mounted in the opening and has an outer wall and an orifice extending therethrough. The plug is movable from an operative position in which the orifice connects the inlet to the outlet to allow fluid to flow to an inoperative position in which the orifice is disconnected from the inlet and outlet to prevent the flow of fluid from the inlet to the outlet. The plug outer wall has a seal-receiving portion which is spaced from the orifice and which is adapted to removably receive a seal retainer assembly. A seal is interposed between the seal-receiving portion of the plug and at least a portion of the seal retainer assembly to form a seal.

Abstract: A plug valve having a body with an inlet, an outlet and a plug-receiving opening which intersects the inlet and outlet. A plug is mounted in the opening and has an outer wall and an orifice extending therethrough. The plug is movable from an operative position in which the orifice connects the inlet to the outlet to allow fluid to flow to an inoperative position in which the orifice is disconnected from the inlet and outlet to prevent the flow of fluid from the inlet to the outlet. The plug outer wall has a seal-receiving portion which is spaced from the orifice and which is adapted to removably receive a seal retainer assembly. A seal is interposed between the seal-receiving portion of the plug and at least a portion of the seal retainer assembly to form a seal.

Abstract: A geared air actuator comprising a piston mounted for movement within a housing. The piston has a front wall and a hollow body portion which extends rearwardly from the front wall. A spring is mounted within the hollow body portion of said piston. When pneumatic fluid is introduced into the housing and against the front of the piston, it moves the piston back against the action of the spring. When the introduction of pneumatic fluid is terminated the spring will move the piston back to its original position. The front wall of the piston is substantially thinner than the length of the body portion.