Abstract: The present invention relates generally to hydraulic systems for actuating a vehicle braking system. More specifically, the present invention relates to a hydraulic system that uses the gravity-generated pressure in a load-bearing hydraulic cylinder to provide hydraulic pressure to a parking brake, emergency brakes, or service brake when properly modulated or other service. The present invention further relates to a system to reduce through dissipation or utilization the available gravity-generated hydraulic pressure so as to deploy a ground engaging drag-brake of a vehicle.

Abstract: A cart for transporting and moving die sets having an air powered/hydraulic fluid drive system to move the cart and die sets thereon. A hydraulic pump is driven by an air pressure powered motor and different hydraulic motors move the cart and move the die sets on the cart. A laterally movable die set transfer device is connected to one die set in one adjacent stamping press and to a second die set positioned on the cart to move the first die set from the one press and to move the second die set off the cart and into a second press.

Abstract: A buffing pad assembly for use with a motorized drive tool comprising a cylindrical foam pad and a circular backing plate. The foam pad defines a front side and a back side and has a first circular layer of hook and loop type fastening material secured to the back side of the pad in axial alignment therewith. The layer of fastening material has a diameter less than the diameter of the pad and defines a centrally disposed aperture therein. The circular backing plate has a second circular layer of fastening material secured to the front side thereof in axial alignment therewith and having a centrally disposed aperture therein. The second circular layer of fastening material is adapted to abut and engage the first layer upon the pad being pressed against the plate, removably securing the pad to the plate.

Abstract: A movable die support cart using a hydraulic drive powered by pressurized hydraulic fluid and having a frame structure including at least one continuous tubular beam with closed ends to define an interior space used as a reservoir for the hydraulic fluid.

Abstract: A movable die support cart with a frame structure supported by spaced axles consisting of continuous beams extending parallel to the axles and continuous plate members extending normal to the beams and beneath the beams. Each plate member is configured with an upwardly curved arch between its end portions. The beams and plate members are attached together by welds to define an upwardly convex die support surface in the unloaded condition and a flatter surface in the loaded condition.

Abstract: In a stamping press, a support assembly for a die set including a cylindrical roller mounted on spring means of sufficient strength so that the cylindrical roller normally supports a die set slightly above a press's bolster surface for easy movement thereover but yieldable in response to strong mounting forces generated between the die and the press to permit engagement of the die against the bolster surface.

Abstract: Apparatus and a system for changing die sets in stamping presses including movable die set support carts which are positioned in a remote pre-staging or loading (and unloading) area when the presses are being used for stamping and which are positioned adjacent the presses to load a new die set into the press from one cart and to simultaneously unload an old die set from the press to another cart during a die set changing procedure.

Abstract: In a stamping operation using several presses, a new group of dies must be substituted for an old group of dies in a rapid manner for efficient use of the press line. A method for rapid exchange of dies includes: loading and unloading a die sets on to and off of transporter carts in a remote area from the presses to permit press operation during this time; moving the carts and new die sets into positions adjacent the presses; simultaneously moving an old die set out of a press and onto the cart and moving a new die set off of the cart and into another adjacent press.

Abstract: There is disclosed and shown an automatic nut installation and torquing system (10) connected with an automatic fastener installation machine (11) whereby a threaded nut (21) is automatically conveyed in proper orientation from a supply source to a final installed position on a threaded fastener (34); the installed nut (21) being at a selectively predetermined final torque value that is selectively variably and controllable without regard to the torque output of the torque motor (48) so long as the desired installed torque value of the nut (21) does not exceed the maximum torque deliverable by the torque motor (48). The variability and controllability of installed torque is accomplishable without any recalibration or readjustment of torque motor (48) to change its torque output.