Abstract: Apparatus for separating individual conductor elements in a multiple-conductor flat ribbon cable including a rotatable cutting element for cutting the insulating sheathing of the cable along each of the score lines running between the individual conductor cores. The cutting element is provided with a plurality of protruding arcuate cutting edges each interrupted by a shorter indrawn non-cutting edge. Further provided is a cable support element adapted to press a cable inserted into the apparatus against the cutting edges, but not against the indrawn edges. When the indrawn edges face the cable support element, a feed-in and feed-out gap is provided for easy insertion and removal of the cable.

Abstract: Apparatus for stripping insulation from electrical conductors which have a circular cross-section includes a stationary stand on which a circular base plate is rotatably mounted. An elongated support unit for the conductor to be stripped is secured to and extends outwardly from the base plate. One or more insulation cutting knives are slidably or pivotally mounted on a mounting member which rotates together with the circular base plate. The number of knives depends on the type of conductor being stripped. Each knife is provided with an actuating device. The actuating device may be stationary or it may rotate at a rate slower than the rate at which the circular base plate rotates so that the associated knife gradually penetrates into and cuts the insulation layer on the conductor so that it can be stripped.

Abstract: A cross connection link which can establish several electrical connections between an elongated strip-shaped conductor and one or more bus bars in the recess of a terminal block has a series of neighboring L-shaped or U-shaped metallic distancing elements each of which has a leg connected with an edge portion of the strip-shaped conductor by a weakened joint so that it can be readily broken off the strip-shaped conductor, and a web which is integral with the other end portion of the leg and has an aperture for the shank of a screw serving to connect the web with a bus bar. The heads of the screws are adjacent to those sides of the webs which face the strip-shaped conductor, and such heads are confined against movement away from the regions of the respective webs so that they are always ready for engagement by the working end of a tool which is used to move the shanks of selected screws or all screws into mesh with tapped holes in the bus bar or bars.

Abstract: A screwless electrical terminal comprises a connector bar and a clamping cage embracing the bar and biassed by a spring to clamp a conductor between the bar and the cage bottom. The cage can be latched open for example by teeth on the rear of the cage engaging recesses on the connector bar, to allow insertion of a conductor. The cage has a forwardly and downwardly projecting pivot element which engages a fixed abutment if traction on the conductor causes the cage to move along the connector bar. Such movement brings the pivot element into engagement with its abutment and thereafter causes the cage to tilt so as to increase the conductor-clamping force in response to traction on the conductor.

Abstract: An electrical plug and socket connector comprises a multi-pole plug assembly and a multi-pole socket assembly each composed of a plurality of plug and socket units, respectively. Each individual unit has two receptacles to receive pins which, depending on their arrangement in the receptacles of the individual units, serve as latching pins to hold the plug and socket assemblies together, or as coding pins to prevent incorrect connections. Any desired pattern of latching pins and coding pins in any desired number of plug and socket units can easily be provided by assembly of individual plug and socket units and pins.

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.