Abstract: The present invention is a "two-way" handle that accepts an electrical cord in one end and an interchangeable electrical apparatus, e.g., test probe cartridges for nondestructive resistivity measurements in the other end, and wherein the handle can accept said electrical cord or electrical apparatus in either end interchangebly, or when desired, two electrical cords, one at each end of the handle.

Abstract: A connection system for electrically interconnecting circuits on a printed circuit mother board and printed circuit daughter board. More particularly, the connection system includes a first connector having a slot and for mounting on the mother board and a second connector having a blade for being received in the slot of the first connector and for being attached to an edge of the daughter board. Polarizing keyway and key bar are provided on respective first and second connectors to prevent incorrect insertion and to provide precise registration of contact elements in the respective connectors.

Abstract: The disclosure relates to an improved telephone connector block having quick clip contact element holder elements which support the contact elements in a given plane. The contact holder elements are modified so that they extend a greater distance outwardly of the quick clip terminals which they support to incorporate a conductor retaining area into which the free end of a conductor may be moved to be retained until subsequently engaged by a tool which then moves the conductor into the quick clip contact element and a corresponding strain relief area disposed immediately adjacent thereto in the respective contact holder element.

Abstract: The exemplary terminal block has pairs of wire fasteners distributed in two rows, and a circuit identifier bearing circuit labels corresponding to the pairs of wire fasteners; the circuit identifier is shiftable side-to-side on the terminal block so as to overlie a selected row of wire fasteners, the other row being accessible for operation.

Abstract: An improved plug-in assembly facilitating the tap-off of electrical current from bus bars carried in a busway section that includes opposite side rails and a plurality of plug-in openings formed in each of the side rails in back-to-back association or registration with each other. The plug-in assembly includes a substantially symmetrical insulating base and a door, each swingably connected to the side rail. Ears formed in the side rail adjacent the plug-in opening are aligned with ears formed on the door and a drive screw extends through holes in each pair of ears and into an opening in a support post provided on the side of each base. The screw is fittingly retained in the ear of the side rail while the door and base members fit loosely over the drive screw to permit those parts to swing between an open and a closed position. A metal cover latch is self-retained in one of a pair of symmetrically positioned latch retaining grooves on the front of the base which retains an integral catch portion on the door.

Abstract: An electric connector for multi-conductor flat cables comprises an insulating housing having a substantially flat end face, at least two kinds of contacts, one kind at a level of height different from that of the contacts of another kind, and at least two cable connecting members in the form of a substantially flat plate. The contacts are arranged in at least two rows extending from the end face. The pitch of or space between the contacts arranged in one row is equal to that of the contacts arranged in another row and to the pitch of the conductors in a multi-conductor flat cable to be connected.

Abstract: A connector is disclosed for connecting a main housing with a fixed base. The housing has an engagement aperture formed on its side, and includes a lock mechanism having a catch piece formed with a bent intermediate portion, a protruding pressable portion, a protruding engaging portion formed with a catch shape for engaging with a fixed base, and an elastic tongue removable engaged into the aperture so as elastically to support the catch piece on the side of the housing with its bent portion pressing thereagainst and acting as a fulcrum, with the tongue biasing the protruding pressable portion in the direction away from the housing and the protruding engaging portion in the direction towards the housing.

Abstract: A removable splice joint between two sections of busway constructed to prevent undesired relative movement of the component parts of the joint while also providing interchangeability between component parts and thereby reducing the number of different parts required for assembly of the joint. The joint includes a top cover plate and a bottom cover plate, each with an inclined periphery, a pair of identical outer phase barriers and a plurality of identical inner phase barriers. Each outer barrier includes a pair of ears which are respectively received in associated slots formed in the cover plates. Molded ribs formed on the barriers in cooperation with a square insulating tube which extends between the two outer phase barriers and through each of the inner phase barriers restrict relative movement between component parts of the joint assembly which is captivated by a bolt extending through each of the cover plates as well as each of the barriers.

Abstract: A raceway for a curved wall panel, which raceway is formed by two substantially identical raceway cover members which are of substantially L-shaped cross section and include a substantially vertical leg which defines a side cover and a lower substantially horizontal leg. The vertical leg has a tang which projects inwardly adjacent the upper edge thereof for wedging engagement with the wall panel. The cover member is initially constructed as a straight elongated member having sufficient flexibility to enable it to be bent inwardly or outwardly to conform to the curvature of the wall panel. The lower leg, in the longitudinal direction is formed by a plurality of toothlike projections spaced by intermediate recesses so that the lower leg can be readily bent to conform to the curvature of the panel.

Abstract: An electrical connector of the split cylinder type for terminating or connecting an electrical wire comprising an elongated tubular sleeve section, an elongated wire receiving slot, a flared entryway leading into the wire receiving slot and a wire retaining means for temporarily retaining the electrical wire within the flared entryway in position for termination or connection within the wire receiving slot.

Abstract: Multicontact electrical connector comprises a connector housing which has one part that is movable in a perpendicular direction to the housing axis. The terminal receiving cavities extend through the movable part and through the relatively fixed part. When the movable part is in one position, the terminals can be inserted into the cavities. When the movable part is moved to another position, a shoulder is formed in each cavity which prevents removal of the terminals from the cavities. The two parts are each plastic moldings and can be assembled to each other in a simple assembly operation.

Abstract: A connecting device for printed circuit comprises a base member with male contacts, an intermediate member with female contacts and a plug with female contacts. The female contacts of the intermediate member extend right through the intermediate member and are shorter in length than the base member male contacts. The base member male contacts are pluggable into the female contacts of the plug after the intermediate member has been engaged in the base member, the male contacts of which run right through the female contacts of the intermediate member.

Abstract: A modular, multi-row, mass terminated electrical connector which mates with an array of pins. The connector includes a housing having top and bottom rows of elongated terminal receiving cavities each with a forward pin receiving opening. A plurality of terminals are mounted in the cavities with each terminal having a forward pin engaging portion and a rear insulation displacement portion. The cavities of the top rows are staggered with respect to the cavities of the bottom row and the adjacent top row cavities are spaced apart from one another. An access slot is formed in the top of each cavity to expose the insulation displacement portion of the terminals. The insulation displacement portion of the terminals received in the bottom row cavities are accessible between adjacent top row cavities so that all of the terminals of both rows can be mass terminated from the top of the connector. The housing is made up of a plurality of modules connected together by means of selectively removable connecting members.

Abstract: A pressure regulating device for fluidtight, fluid-filled apparatus comprises a solid body with a shallow recess in a surface enclosed by a flexible diaphragm. A narrow passage, preferably of capillary dimensions, connects the recess to the interior of the apparatus and the diaphragm is flexible enough to be deformed without injury so as to enter the recess and reduce its volume substantially and preferably practically to zero. The recess contains a volume of air which for optimum performance should be equal to the amount by which the volume can be reduced by movement of the diaphragm and also equal to the volume expansion of the fluid (or if more than one device is fitted its share of the fluid) from atmospheric conditions to mean working temperature (less the volume of any air occluded elsewhere in the apparatus). By this means, the diaphragm is substantially unstressed both under atmospheric conditions and under mean working conditions, since the gas will be compressed to a negligible volume.

Abstract: An electrical connector for flat transmission cable comprises a body member having terminal-receiving passageways and conductor-receiving passageways with a continuous recess between the terminal-receiving passageways and the conductor-receiving passageways. Electrical terminals are disposed in the terminal-receiving passageways for terminating electrical conductors of a flat transmission cable which are disposed in respective conductor-receiving passageways. Cover members are secured onto the body member and they include projection members engaging the respective electrical conductors in the continuous recess to provide strain relief for the conductors. According to another aspect of the present invention, the cover members include projections that are disposed on each side of the conductor-receiving sections of the electrical terminals to prevent the electrical conductors from disconnecting from the conductor-receiving sections.

Abstract: An outlet terminal connector for electrical circuitry contained within a hermetically sealed housing. The connector includes a tubular shell having a threaded end portion composed of steel for releasably engaging a threaded mating cable connector and a base end portion composed of a different metal suitable for welding to the material of the housing. The connector shell is fabricated as a unitary assembly from a two layer explosively bonded laminate, one layer of which comprises steel and the other layer of which comprises the material of the connector base end portion.

Abstract: An incandescent lamp socket comprises a housing for receiving the base portion of an incandescent lamp and switch means for selectively connecting the lamp's contacts to a source of electrical energy. Such switch means comprises a rotatably mounted cylindrical sleeve which surrounds the socket housing, and means responsive to rotational movement of the sleeve relative to the housing for selectively connecting the lamp contacts to the energy source. Preferably, such connecting means comprises a planetary ring gear disposed along the interior wall of the sleeve, a cooperating pinion gear mounted for rotational movement on the socket housing, cam means rigidly coupled to the pinion gear and rotatable therewith, and electrically energized cam follower means, movable in response to the cam means to selectively energize certain socket electrodes which are connected to the contacts of a lamp supported by the socket housing.

Abstract: A connector plug includes a plurality of contact pins carried by an insulating body which is installed in a cylindrical metal cover. The cylindrical metal cover has a semi-cylindrical rear portion which is engaged with a semi-cylindrical metal cover piece into a cylindrical form. A separately molded insulating cap is assembled onto the cylindrical metal cover. Within the insulating cap, a cable clamp member having a thickness greater than that of the cylindrical metal cover is secured to a rear end extension of the cover. A cable connected to the contact pins is clampedly held by the cable clamp member.

Abstract: An electrical connector for assembly of an electronic component with two parallel rows of terminals onto a printed circuit board, the connector including an insulating block having two rows of cavities, each cavity containing a contact element introduced through an opening provided at the top of the cavity and a leg projecting at the bottom of the cavity for connection to the printed circuit board. The contact element comprises a substantially flat web portion pressing against the side of the cavity adjacent to an outer longitudinal face of the insulating block. A central part of the web portion is cut out and bent to form a contact tab extending out of the plane of the web portion. The tab is resiliently urged towards the bottom of the opposite wall of the cavity to cooperate with a male contact element which is inserted into the cavity.

Abstract: A plurality of wide flat bus bars (A,B,C,N) stacked in flat face-to-face relation are clamped against separation forces of short circuit currents in the bus bars by U-shaped reinforcement channels (6,14) disposed over opposite edges of the bus bars with bight portions (6a,14a) of said channels abutting the edges of the bus bars and leg portions (6b,14b) thereof extending along flat surfaces of outer ones of said bus bars. A plurality of bolts (8) through aligned holes in outwardly directed flanges (6c,14c) formed on the free ends of the legs of the channels and are threadably tightened to draw the channels together and to exert a clamping force against the flat faces of the bus bars. A flat sided housing (16,24) is attached to the channels (6,14) and may be provided with access openings (16a) at intervals therealong for making plug-in connections with the bus bars.