Abstract: A compression tool comprises a tool head and a pair of dies mounted in the tool head for compressingly, surroundingly engaging a generally tubular workpiece. The dies define a minimum opening and a maximum opening therebetween for accommodating workpieces over a corresponding range of sizes. A fluid operated drive urges the dies inwardly to compress the workpiece and a fluid pressure control is provided for controllably varying the maximum pressure of the fluid supplied to the fluid operated drive in accordance with the size of a workpiece to be compressed.

Abstract: A one-piece, composite electrical connector is disclosed. The connector is fabricated from at least two portions of electrically conductive metals.

Abstract: A compression tool for compressing a generally tubular workpiece, comprises a tool head having an open, workpiece-receiving end. A plurality of generally parallel, spaced apart movable compressing members are carried by the tool head. A stationary compression surface also carried by the tool head opposingly faces the movable compressing members. Guides are provided in the tool head for slidably mounting the movable compressing members. A ram drives the movable compressing members towards their respective maximum compressed positions, which are defined by the ram and a ram-carrying channel. This maximum compressed position generally increases in a predetermined sequence from the workpiece-receiving end of the tool head toward an interior portion of the tool head.

Abstract: An electrical bus includes a receptacle for mating with an external electrical connector. This receptacle defines an entrance and a tapering inner wall portion diverging inwardly of the entrance. A connecting adapter member comprises a first portion whose external periphery presents flat surfaces for engagement by a tool, and a second portion comprising a plurality of elongate tapered segments. The elongate tapered segments define a central bore and a peripheral surface generally congruent with the inner wall surface of the receptacle. The segments are resiliently inwardly compressible to effect mating with the receptacle, so as to hold the adapter member rotatably in captive relation therein. The central opening is threaded to receive a complimentarily threaded stud as for example, a transformer connector stud. Upon inserting the adapter member in captive relation in the bus receptacle, a tool is applied to the tool receiving portion thereof and the adapter rotated to threadingly engage the stud member.

Abstract: A bushing assembly adapted for installation as a feedthrough type of connection in a transformer, switchgear, sectionalizing point or any other application includes a cast conductor element embedded in a body of molded insulating material, and an insert preformed to close tolerances in said cast element and adapted to cooperate with a section of an insulating material mold to seal the mold during molding of the body of insulating material.