Abstract: A one-piece dead-front electrical plug comprises a dead-front member, conductive blades mounted therethrough, and two side covers hingedly connected to the dead-front member by integral web hinges. The side covers pivot between an open position affording access for making wiring connections between a cord and the conductive blades, and a closed position fully enclosing the wiring area. Each side cover has cord clamp teeth which cooperate to grip the cord. The web hinges are protected from longitudinal stress in one embodiment by side cover flanges which are matingly received in notch openings in the dead front member, and in another embodiment by dowel pins protruding from the dead-front member which are matingly received in openings in the side covers. Lateral stress protection of the web hinges is provided by an interengaging flange and groove structure of the side covers and dead-front member.

Abstract: A quick-make, quick-break probe contact assembly for connecting a high voltage cable to a high voltage bushing, the probe contact assembly being mounted in a cable terminator and including a movable section responsive to either an arc-generated arc-extinguishing gas, or to a fuse generated gas pressure for accelerating close-in with the bushing under fault current conditions. The probe contact assembly can also include a spring biased snap release sleeve that is retained within the bushing on load break of the cable terminator from the bushing to accelerate arc-out.

Abstract: An electrical connector including selective polarization keying between the ground pin contact and ground socket contact. A rotatable sleeve around the ground socket contact selectively locks the ground pin contact in position or prevents insertion thereof when a circuit breaker is on.

Abstract: An improved connector for coupling the individual conductors of a multi-conductor flat cable to a termination point which may be a socket for receiving the pins of a further connector or the like comprising a base member having a plurality of apertures extending from a first to a second surface, the number of apertures being equal to the number of individual conductors found in the flat cable. Placed in each of these apertures is a contact having a first end which can pierce through the insulation of the multi-conductor cable and make contact with an individual conductor placed in association therewith and which end is placed adjacent the first surface of the base member of the connector. The contact terminates in a contact tail portion which extends towards the second surface of the base member in a socket for receipt therein and contact with the pin of a further connector, or the like.

Abstract: A spindle assembly has a rotatable spindle which is electrically insulated from its housing by means of a moulded synthetic resin layer surrounding bearing holders. Electric current for effecting electrolytic grinding is supplied by a brush member which is in contact to the rear end of the spindle, the contact portion of the spindle and the brush having air circulating pathes for cooling and ejecting out powdered-brush-material and have radiating surfaces exposed to cooling air flow.

Abstract: A technique is described for completely and positively wiring components into mass produced machines, such as washing machines, dryers and the like. The subject technique encompasses improved contacts, connectors and a wiring harness all of which are individually and collectively adopted to provide a readily ascertainable positive visual indication of a full mating condition and which will prevent further assembly of components if not initially fully assembled in the proper relationship. Each subassembly of a connector and related component includes keying means allowing only correct assembly and mounting in the machine plus visual indicators which verify correct assembly at each step. The connectors preferably have housings which can be produced in great lengths and cut to the desired shorter lengths. These housings also include strain relief means for the associated conductors and may be hermaphroditic.

Abstract: Roller bearings ensure electrical contact and smooth rotation between a rotatable member and a stationary member even during severe vibration.

Abstract: Apparatus for transferring power from the battery of a service vehicle to the battery of a second vehicle, wherein the negative battery terminal of the service vehicle is connected to the frame of the service vehicle, which utilizes a spring-loaded reel for storing the jumper cables in the service vehicle and where one of the cables is permanently connected to the frame of the service vehicle and the other cable is permanently connected to the positive terminal of the battery in the service vehicle. The reel is preferably positioned in the rear of the service vehicle, whereby the vehicles may be aligned with the traffic when the apparatus is being utilized to start a stalled vehicle.

Abstract: An electrical connector for a flat multi-conductor transmission cable includes a cable terminating face, a parapet having a plurality of V-shaped grooves and a scalloped top extending from the face, a bus strip engageable with the face, and a cover. Also, a method for terminating the cable includes severing an insulated sheath of the cable intermediate its end, sliding the severed insulated end along a length of the conductors to expose the shield and signal conductors, severing the signal conductors, folding the insulated end of the transmission cable back along its length over a bus strip, and engaging the shield conductors with the bus and the signal conductors with electrical terminals on the face of the connector.

Abstract: A spring loaded probe pin for making electrical contact with a printed circuit board in particular, a solder pad, is disclosed. The pin has a contact face of deformable synthetic thermoplastic resin to provide an electrically conductive low resistance area contact.

Abstract: This invention relates to an electrical connection for use in connection with an apparatus including a container suitable for holding molten glass at a high temperature and electrically connected through the connection to a source of electric current. Typically, the connection comprises a reservoir of electrically conducting material which is liquid at temperatures of operation and a current carrying conductor electrically connected to the said container and mounted for continuous electrical contact with the electrically conducting liquid during movement of the said container.

Abstract: A swivelling electrical connector includes a plug having an axially aligned contact and pair of tandemly spaced circumferential contacts. The plug registers with a socket structure disposed within the housing of an appliance which has complementary spring loaded contacts. One of the tandem contacts on the plug, preferably the one nearest the end of the housing, is a ground contact.

Abstract: A tubing coupling suitable for large diameter fuel lines in aircraft. A coupling comprising ferrules for the tubing ends with annular seals on each ferrule, a band positioned over the seals, a retainer with hinged sections positioned around the band and ferrules, and a bonding conductor in the retainer engaging both ferrules.

Abstract: A hermetic electrical penetrator comprising a shell mounted in a single penetrator plate. A pair of axially spaced sealing members are sealed inside the shell defining a leak sensing chamber therebetween. One or more electrical contacts extend longitudinally through the sealing members in the shell. A sensing port in the wall of the shell communicates with the sensing chamber so that any leakage of gas through the shell can be detected by measuring the pressure differential between the inside and the outside of the shell. Preferably the sealing members are glass beads, and a porous ceramic spacer extends between the beads substantially filling the leak sensing chamber so that pressure differentials may be more easily detected.

Abstract: An electrical slip-ring brush which provides full-circle electrical contact with a rotating member comprises a main, annular housing of electrically conductive material having a plurality of circular-segment carbon brush elements loose-pinned therein, contact between the housing and the brush segments being assured by an annular leaf-spring assembly, the brush segments being resiliently urged radially inwardly by annular springs disposed on the outer periphery thereof. An electrical contact is made to the housing.

Abstract: A separable connector module for connecting shielded electrical power cable and of the type including an insulating housing containing a bore contact assembly. The bore assembly includes a set of resilient receiving contact fingers attached to a rigid snuffer tube having on its inside wall a liner of ablative material. The improvement comprises that the portion of the snuffer liner adjacent the contacts is counterbored to have a greater inside diameter than the remaining portion of the snuffer liner. Such counterboring improves the performance of the connector for capacitive switching at relatively high voltages and in addition reduces the tendency for clear and restrike failures on typical distribution circuits.

Abstract: A stationary outer annular holder is concentrically positioned around and radially spaced apart from a rotatable annular conductive plate member. Curved conductive spring bands are supported on the holder so as to be urged into sliding contact with the annular conductive plate member. Electrical contact and smooth rotation between the holder and the annular conductive plate member are thus ensured even during severe vibration.

Abstract: A connector casing offering advantages in reducing the number of parts, at simplification of assembly and at reorganization and integration of parts management. According to this invention, there is provided a connector casing made of flexible synthetic resin and molded in one piece in rectangular box-like form. The casing has a top and a bottom hinged together at one rear edge thereof by a pair of hinge planes also integral with the casing. A front wall of the top and bottom have mating arched indentations to provide a cable opening when the casing is closed. Snap lock means are provided on the front walls and along each side of the top and bottom. Each side wall has a connector support near the rear. A rectangular opening is provided at the rear between the hinge planes to accommodate connection to a connector held in the casing. The casing will also accept flat cables and will accommodate metal cord holders about the cord.

Abstract: A multi-conductor probe, having a probe end adapted to contact a body to be probed, consists of a first element of electrically insulative elastomer and a plurality of elements of electrically conductive elastomer contiguously bonded to the first element such that each of the electrically conductive elements is insulated from any other of the electrically conductive elements. Each of the electrically conductive elements is electrically connectable to an external electrical test means at a point remote from the probe end. The electrically insulative element and the electrically conductive elements are substantially coterminous at the probe end.

Abstract: A connecting device is adapted to releasably hold a portion of a first object, such as a pilot's oxygen mask, to a portion of a second object, such as a pilot's helmet. The connecting device broadly includes an anchor member mounted on the mask, a housing member mounted on the helmet and having a female passageway, a male member adapted to be inserted into the female passageway, and a cable member having one marginal end portion secured to the anchor member and another marginal end portion secured to the male member. The housing member has a toothed pawl section biased to move into the female passageway. The male member has a ratchet rack adapted to engage the pawl section to prevent unintended separation of the male member from the female passageway. The male member includes a release member movably mounted relative to the rack, and having an operative surface adapted to extend beyond the rack teeth.