Abstract: Universal aerial and die-mount cams, each having an adapter assembly, a driver, and a slide sandwiched between the adapter assembly and the driver. The adapter assembly has a universal adapter having an arcuate portion that is angularly adjustable within arcuate recesses in opposing side plates of the universal adapter so that bearing surfaces of the universal adapter slidably oppose a first group of bearing surfaces of the slide and a second group of bearing surfaces of the slide slidably oppose bearing surfaces of the driver, the latter bearing surfaces being parallel to or inclined to the horizontal. Three ranges of longitudinal driver inclination angles can be accommodated by using the same slide and universal adapter and one of two pairs of side plates.

Abstract: Adjustment of the tools (24) on the tool holder (10) in an Aerial Cam of a metal stamping press may be readily effected by opening the press to remove the upper die (14) from the stamping area and then removing the tool holder (10) on the driver (18) for controlled reciprocation simulating normal operation of the press. The tools (24) may then be adjusted in relation to the workpiece without the interference of the press dies (14 and 20).

Abstract: Narrow aerial and die-mount cams, each having a cam adapter, a driver and a slide sandwiched between the cam adapter and driver. The narrow aerial cam slide has an elongate primary portion that has a T-shaped cross-section and has a primary bearing surface, and the cam adapter has a rectangular recess. An elongate keeper plate having a longitudinal slot is secured to each side of the cam adapter adjacent the rectangular recess to slidably retain the primary portion of the slide within the longitudinal slots and the rectangular recess. The primary bearing surface and a pair of intermediate bearing surfaces formed in the slide below the primary portion slidably support the keeper plates and thus the cam adapter. The driver slidably supports the slide. The narrow die-mount cam is basically an inverted version of the aerial cam.

Abstract: A roller cam with pairs of sliding surfaces and wear plates located in an upper plane and with pairs of laterally slanted sliding surfaces and pairs of laterally slanted guiding wear plates located in a lower plane. The guiding wear plates are longitudinally contained between end plates to avoid using screws, which might loosen under stress, to secure the wear plates. Adjusting setscrews are used to laterally adjust the guiding wear plates, and positive return members are used to provide a tool retracting force in addition to that provided by a retracting spring.

Abstract: A bushing utilizes a fabric reinforced thermoset composite sleeve incorporated within an outer shell in a construction enabling the sleeve to be press-fitted within the shell and held therein by a constriction in the shell bore which is embraced by the bearing liner. Following installation of the bearing sleeve, the sleeve bore may be reamed to provide a uniform inside diameter.

Abstract: A bushing utilizes a fabric reinforced thermoset composite sleeve incorporated within an outer shell in a construction enabling the sleeve to be press-fitted within the shell and held therein by a constriction in the shell bore which is embraced by the bearing liner. Following installation of the bearing sleeve, the sleeve bore may be reamed to provide a uniform inside diameter.

Abstract: A bushing utilizes a fabric reinforced thermoset composite sleeve incorporated within an outer shell in a construction enabling the sleeve to be press-fitted within the shell and held therein by a constriction in the shell bore which is embraced by the bearing liner. Following installation of the bearing sleeve, the sleeve bore may be reamed to provide a uniform inside diameter.

Abstract: A bushing utilizes a fabric reinforced thermoset composite sleeve incorporated within an outer shell in a construction enabling the sleeve to be press-fitted within the shell and held therein by a constriction in the shell bore which is embraced by the bearing liner. Following installation of the bearing sleeve, the sleeve bore may be reamed to provide a uniform inside diameter.

Abstract: A bump cam is provided with a sacrificial force transmitting block disposed between the driver and the tool holder and floatingly coupled to the tool holder whereby lateral loading imposed on the block by the driver is not transmitted to the tool holder.

Abstract: Aerial and die mounted cams are provided with dual opposed wearplates on bearing surfaces.

Abstract: A universal cam unit for use in a power press comprising a driver assembly, a slide block to which the working tool is mounted, and a mounting bracket for coupling the slide block to the ram for movement therewith. The slide block is slidably mounted to move between a retracted and an extended position. The slide block and the driver assembly include parallel inclined bearing surfaces which abut when the pressure pad and the ram are lowered. As the ram motion continues, the inclined bearing surfaces slide against each other thereby causing the slide block to move from the retracted to the extended position. The movement of the slide block brings the tool into engagement with a workpiece disposed between the pressure pad unit and the lower die to perform a desired operation. The components of the universal cam unit may be disassembled and selectively replaced, so that the unit may be quickly and easily adapted for use in a desired application.

Abstract: A variable force die spring is disclosed which combines high force, short axial compression distance spring assembly, such as belleville springs, and low force, high axial compression distance springs, such as coil springs, in a telescoping casing having an internal cavity. The springs are arranged within the cavity so that upon receiving a load the low force spring will compress first resulting in a large axial compression and low force resistance. The load applied to the telescoping casing will then transition from the low force spring to the high force spring. The high force spring then compresses as the load continues to be applied. In alternative embodiments, a third intermediate spring is added that compresses moderate distances under moderate pressure thereby increasing the overall axial compression and load capacity capabilities of the spring assembly.