Abstract: Wire-stripping pliers have outer clamping jaws and inner longitudinally movable stripping jaws. The stripping jaws are retracted, and the movable blade of a wire cutter is moved, by a pulling member in response to closure of the pliers handles. This movement is produced by a driving arm which moves along a cam surface on an extension of the pivoted clamping jaw, thereby pushing back the pulling member. The cam surface has a first portion of shallow inclination to provide rapid movement of the stripping jaws at low force, followed by a surface portion of steep inclination providing for relatively high cutting forces as the wire cutting blades close.

Abstract: An electrical plug and socket connector has in the socket part a contact consisting of a contact pin identical to that of the plug part, combined with a cage which fits loosely in the socket housing, embraces the contact pin and incorporates a contact spring, thus isolating contact pressures within the contact assembly so that the housing is not stressed. The contact pin is retained by a snap-in retainer. The plug part has an identical pin and retaining means.

Abstract: A hand tool for stripping insulation from the end of a wire includes a pair of gripping jaws for holding the wire and a pair of cutting and stripping jaws for removing the insulation. An actuating member is pivotally connected at one end to the cutting and stripping jaws and at the other end to a pivotally mounted driving member. When a pair of handles on the tools are pressed toward one another, the two pair of jaws engage the wire, one pair holding the wire while the other pair cuts and strips the insulation. During this operation, the actuating member displaces the cutting and stripping jaws away from the gripping jaws and pulls the cut insulation at least partly off the end of the wire.

Abstract: A tool particularly suitable for use in crimping includes two arm members and a pair of working jaws each supported on a different one of the arm members. A drive arrangement such as a pair of handles is connected to the arm members for moving the arm members relative to each other between open and closed positions. The drive arrangement, arm members and working jaws provide two force transmitting paths each extending between a different point on the drive arrangement where an external operating force is applied, and a different one of the working jaws whereat the operating force is transferred to an article to be worked on by the tool. At least one pivotal connection is provided, including at least one pivot member and a bearing member for engaging the pivot member. The bearing member is arranged to deform resiliently when the operating force is transferred to the bearing member by the pivot member.

Abstract: Wire-stripping pliers include stripping jaws which close with and then move longitudinally relative to clamping jaws for stripping the insulation. A conductor end stop is mounted on a stripping jaw to define the stripped length and consists of an H-section member of which the web forms the stop abutment and the side limbs can flex in response to pressure on their upper ends for engaging and disengaging teeth on their lower ends from corresponding teeth on the sides of the stripping jaw.