Abstract: There is disclosed a pressure-drop sensor valve system for controlling the movement of a fluid operated, ram-type device, such as that used to drive a panel punch. The valve-like device includes a main passage having an inlet for pressurized fluid and an outlet connectable to the ram-type device. Disposed intermediate said inlet and outlet is a fluid chamber. A poppet valve is positioned between said fluid chamber and an accumulator chamber in the body of the device. A fluid by-pass is connected to the fluid passage and a reservoir, and is blocked when the poppet valve is closed and opened when said valve is opened. A piston member is provided with its stem in the accumulator chamber opposite the poppet valve, both said member and valve being slightably movable by separate compression springs. A check valve is positioned in an axial passage of the poppet valve.

Abstract: The cutting tool includes a tool body having a longitudinal channel to receive different sizes (outer diameters) of shielded cable for cutting and a cutter arm movably mounted on the body to bring a rotatable cutter blade into the channel to cut the shielding. A transverse adjusting member is mounted on the tool body for movement toward or away from the channel to adjustably position a pivotable cable clamp detent in the channel and includes a biasing spring that allows pivotable deflection of the clamp detent toward one end of the channel when the cable is inserted from the other end and return of the clamp detent to a cable clamp position when the cable is moved slightly in the opposite direction to prevent cable movement as a result of cutting forces. Movement of the adjusting member controls the adjusted position of the clamp detent in the channel and means is provided on the adjusting member to releasably lock same for a particular size of shielded cable to be cut.