Abstract: A cover plate to be positioned over an electrical receptacle and fastened to it and which plate includes a main plate with a pair of openings in registry with the electrical sockets of the receptacle and a pivotal cap normally in covering relation of each of the openings and energized sockets, the caps being pivotally connected to the main plate and including a ferrous metal keeper in blocking relation of pivotal movement of each of the caps and in a slot; the keeper is responsive to magnetic forces of attraction to slide in the slot out of blocking relation of pivotal movement of the cap so that a magnet can be used as a key to gain access to the energized receptacle.

Abstract: An edge connector for a printed circuit board includes a housing having a central passageway for guiding the board. Contact elements are rotatably mounted in cavities of the housing adjacent to the passageway. Cantilever spring-type conductive terminals resiliently urge the contact elements so that they partially extend into the passageway. In their normal position (that is, without a board inserted into the passageway) the contact elements are in interfering relationship with the path of the board. Upon insertion of a board the contact elements resiliently yield to the board. Such contact elements selectively roll over the edges and any surface irregularities of the board to minimize the force required to fully insert the board into the passageway of the housing and to minimize the wear of the board. Such contact elements also provide both a good mechanical and electrical connection to contact areas of the board.

Abstract: An electrical connector arrangement for a motor vehicle steering assembly which includes a stationary steering column member rotatably supporting a steering shaft fixed with a steering wheel and characterized in that the steering column member supports a pair of concentric metallic rings that are adapted to be electrically connected to a sensor that forms a part of an occupant restraint cushion system. Each of the rings supports a plurality of contact brushes which cooperate with a pair of annular conductor members connected to the steering shaft for continuously providing electrical current to the occupant restraint system.

Abstract: Coupling means for vehicles such as rolling stock which includes railroad cars, tractors and trailers and the like which includes apparatus for automatically coupling fluid carrying pipes and electrical connectors when the tractors and trailers or other vehicles such as railroad cars are mechanically coupled.

Abstract: A multi-contact electrical connector is disclosed for connecting a plurality of terminal pads on an integrated circuit ceramic substrate package to a like plurality of terminal pads on a printed circuit board. The subject multi-contact electrical connector includes at least two continuous strips of contacts, each formed by a plurality of parallel spaced contact members secured between two webs of flexible insulation material and folded upon themselves. One end of each contact is secured to a pad of a printed circuit board so that the strips are free standing extending normal to the plane of the board and define the periphery of the integrated circuit ceramic substrate package received therebetween. The free ends of the contacts resiliently engage the package pads. A profiled open housing is provided to surround the upper free end of the contacts and provide a resilient backing for them.

Abstract: A mechanical assembly system for use in joining sections of towed arrays. A ypical section comprises an outer hose housing with aramid fiber strength members suitable for enclosing a line array of sensors and electronic equipment that are submerged in water and towed by a vessel. The hose is normally oil filled. The system includes an inner sleeve assembly, a cuff assembly, a bulkhead for forming an oil tight barrier and connecting electrical wiring, a positioning ring and a plurality of discs for spreading and terminating the aramid fiber strength members. In addition adhesives are used at various mechanical connections in the system.

Abstract: A hollow piston assembly for brakes or clutches comprises a first member having an annular plate portion, an inner cylindrical hub and a flange formed on the outer end of the plate portion. A second member defines an annular cavity therein and has an annular flange press-fit into a first recess defined at the juncture of the plate portion and the cylindrical hub of the first member and a radial flange press-fit into a second recess formed at juncture of the plate portion and the flange of the first member. The piston assembly may be reciprocally mounted in the housing of a brake package to selectively compress a plurality of interleaved friction discs upon pressurization of an annular actuating chamber, defined between the first member and the housing.

Abstract: A vehicle battery accessory apparatus utilizes a first pair of electrical conductors, having the first ends thereof provided with clamps suitable for convenient coupling to the terminals of the battery, a storage reel upon which the major length of a second pair of electrical conductors may be stored, and a brush and commutating arrangement to electrically couple the second pair of electrical conductors and the first pair of electrical conductors together, the second pair of electrical conductors being provided with electrical connectors of the clamping type and an insulating bar having a pair of lugs thereon such that the bar is provided with lugs for retaining the electrical clamping connectors in a stored non-shorting condition when the apparatus is not in use.

Abstract: A separate power head for a vacuum cleaner is detachably connectable with the vacuum cleaner housing. It has a casing provided with an airflow passage and an electric motor. A tubular connector serves to connect the head to the housing and to simultaneously establish an airflow connection between the airflow passage and a dust receptacle in the housing, as well as an electrical connection between the electric motor and a current supply source in the housing.

Abstract: A current collector for a photoscope of a photoelectric control installation of a flame cutting machine has an insulating plate having plug mounting means on one side and electrically connected contact wires on the other side with the contact wires arranged in a single row with their free spring ends taken up by a comb.

Abstract: The swivel plug is comprised of an integral member having a ring plus ridge bearing portion, and a cylindrical contact carrying portion whose front end serves also as bearing. The member has a generally flared opening for insertion of the cable. The member is made of hard plastic, e.g. nylon and partially embedded and filled by soft plastic, e.g. polyvinylchloride.

Abstract: A multi-product swivel assembly for carrying oil or other cargo and transmitting electrical power and signal currents, between a ship and stationary oil wells or other installations. The swivel assembly includes a non-rotating or stationary unit, a large upper unit that rotates about the stationary unit, and a center unit that rotates with the upper unit and which extends down within the stationary unit. The center unit includes a large vertical cylinder which surrounds a group of vertical pipes carrying inflammable fluids, and a vertical pipe filled with inert gas and surrounding a conduit that carries an electrical cable. In order to repair the upper rotating unit, as to replace one of the muliple seals thereon, bolts can be loosened to separate it from the center rotating unit. When the bolts are loosened, a shoulder on the stationary unit prevents the center unit from dropping, so that during later reassembly, the bolts will lift up the center unit to its rotating position.

Abstract: A hinge for use with a swinging door provided with an electric lock or other electrically operated device or component therein in which the hinge is provided with chases and hollow hinge barrels sheathing a tubular collar which also serves as a hinge pin and provides a continuous passageway through the hinge for electrical conductors in order to maintain a continuous circuit or circuits through the hinge regardless of the position of the door. Each hinge leaf includes a barrel integral therewith with the barrel and leaf being a one-piece casting. The barrels completely enclose the tubular collar which forms a hollow hinge pin and protects the electrical conductors from attack in the event the leaves and barrels are pried apart.

Abstract: Electrical connectors comprising complementally formed plug and socket elements each of which include safety disks to conceal the contacts the plug and socket elements further having pilot contacts and power contacts as well as mating means arranged to delay the separation of the power contacts and interlock means for the respective elements capable of temporarily immobilizing the plug and power socket elements to provide a power cut-off for electrical engagement of said elements.

Abstract: In a module which is usable in a wide band DC to UHF range, a vernier connection is employed in a slip ring and brush assembly. A source is connected to a ring by four slip ring feeds and a load is coupled to the ring by three brush leads. The unequal number of feeds and brushes reduces the standing wave reflections on the ring enabling the module to perform satisfactorily at high frequencies.

Abstract: A terminal pin is formed at its outer surface portion with first and second lug portions which are axially extending in opposite directions, the second lug portion having at its generally middle section an outwardly projected portion. Upon insertion of the terminal pin into a through passage of the housing, the outwardly projected portion of the second lug portion is brought into engagement with an engaging section formed in the passage for projecting the first lug portion outwardly to allow the same to engage with another engaging section in the passage, so that the terminal pin is held in place in the passage.

Abstract: A composite diver's umbilical including concentric hoses for breathing gas, eating fluid supply and return, electrical conductors, and a strength member, and cooperating separable connectors for effecting end to end joining of segments of the umbilical. The connectors are characterized by cooperating nipple and receptacle members having coaxial, arcuate passageways, and cooperating pin and socket electrical connectors.

Abstract: Two separate but identically shaped sections cooperate to form an electrical cord gripping device when they are brought together. The sections are insertable into recesses in cooperating halves of an electrical housing, by wedging or snapping them into place, and, when the housing is closed, the sections form a restricted opening and provide a clamp around an electrical cord passing through the opening and into the housing. The sections are readily removable from the housing, so that a single housing can be used with electrical cords of different sizes. Further, each section contains a diagonal rib, and, when the sections are brought together, their ribs criss-cross one another to grip the cord from opposite sides. The sections are also shaped to provide abutting surfaces which overlap each other to cam the sheathing of the electrical cord into the opening provided by the sections, and prevent crimping of the sheathing.

Abstract: Disclosed is a lift cover assembly which effectively shields and seals an electrical installation box having an electrical wiring device mounted therein against the entry of rain or other liquid sprays whether the lift cover is in a raised or in a closed position. With the lift cover in the raised position, the assembly also functions to shield the interface between intercoupled wiring devices. The assembly employs a unique, elastomeric member of overall substantially annular shape which is compressible and extendable upon the closing and opening, respectively, of the lift cover to accomplish these functions without sacrificing the narrow profile of the assembly.

Abstract: An apparatus for making electrical contact with plural test points on one of two oppositely facing sides of a planar test member. A test member support has a test member test location. A door is provided for opening and closing access to the test location. The door and support form, when the door is closed, a substantially closed cavity therebetween encompassing the test location. The door and the support each comprise one of two opposing walls of the cavity. An array of relatively spaced electrically conductive probes are mounted in and extend through the wall of the support. Each of the probes has an end exposed exterior to the cavity and a probe head electrically connected on the opposite end which is exposed in the cavity. The probe heads are each resiliently biased away from the wall of the support to a substantially common plane and are movable under pressure towards the wall of the support.