Abstract: The invention relates to an arrangement for obtaining an uninterrupted connection of an electric cable or the like between two elements pivotally hinged to each other, in particular, between a door frame element and a door connected thereto. The arrangement comprises, at the position of the connection, a member arranged around the cable in the form of a separate, turnable and longitudinally flexible protecting element. This element is arranged basically in the longitudinal direction of the door frame element and one end of the element is connected to the door frame element and the other end to an adjacent edge part of the door. There is, for said protecting element, in the door frame and/or in said door edge part, at least one recess. This recess is so arranged that, when the door is closed, the protecting element and said cable are received in this recess.

Abstract: A holder device for a flexible power supply cable includes coaxial, relatively rotatable sleeve members with the cable extending through an annular space defined between the inner wall of the rotatable members and a guide ring fixed to one of the members, the cable being affixed to both members which are capable of relative rotation without interference by the cable.

Abstract: A device for handling a group of cables running to medical x-ray equipment that is movable in all degrees of freedom comprises: A vertical axle mounted overhead; a boom swingable in a horizontal plane on the axle; a housing on the axle having openings for receiving and clamping the ends of respective flexible cable enclosing tubes, one of which extends over the boom to the equipment and the other of which establishes a cable path continuing to a swivel mechanism that is spaced from the axle and mounted overhead.

Abstract: This headset includes a capsule intended for mounting over either ear of the wearer. The surface of the headset capsule adjacent to the ear is contoured to fit snugly behind either ear. A microphone is mounted on a boom projecting from the front end of the capsule. The boom is tiltable and rotatable so that the position of the microphone may be adjusted relative to the mouth. The rotatability of the boom on the capsule permits adaptation of the headset for wear over either the right or left ear. The boom is curved to keep it out of contact with the face of the wearer. An ear tube extends from the lower end of the capsule at the central plane thereof and is flexible so that it may engage either the right or left ear, depending on the location of the headset. The bottom of the capsule is provided with an ear clip for the purpose of maintaining the position of the capsule and microphone during motion of the head.

Abstract: To assure safety, an expansion joint in an electrical system must have grounding continuity. A telescoping unit is provided using a braided-conductor bond inside the joint thereby protecting it from ambient contaminants. A high integrity ground continuity is assured even if the conduit is painted or becomes corroded. Selected components are proportioned with respect to each other to assure accurate component alignment with no possibility of relative movement, during assembly, which would endanger ground continuity. Stop means are incorporated in the design to limit the twisting of the grounding jumper during assembly.

Abstract: A right angle connection for an SF.sub.6 -insulated high-voltage switch gear with three phase conductors is disclosed. The conductors are arranged in the connection with a straight section and an adjustable crank section. The crank section is adjustable between two positions 180.degree. apart, so that the connection can be used in either direction.

Abstract: In a third rail system for electric railroads, double T shaped third rails are used, the web of which has an internal longitudinal slot to receive the guide projections of support insulators and for the space saving mounting of electrical and mechanical connecting parts of fixed and/or expansion joints. With this slot design, good heat transfer and at the same time, a large mechanical moment of inertia are obtained.

Abstract: A bus duct joint for joining two bus ducts consists of a sheet metal enclosure having openings at each end for receiving the respective ends of bus ducts having internal bus which is to be joined together. The interior of the joint member contains flexible conductors for electrically connecting the corresponding bus bars of the two bus ducts so that the bus bars can have a given movement with respect to one another without undue strain on the bus supports. Each of the flexible conductors is covered by flexible insulation material bus joint covers. A sealing rubber sheet surrounds a window through which at least one of the bus ducts enters the sheet metal joint member so that there can be misalignment between the duct and the joint member.

Abstract: There is disclosed an improvement in ignition wire for internal combustion engines, particularly automotive engines, which comprises a short length of malleable, insulated metal conductor bearing a spark plug terminal connector at one end and, at the opposite end, a connector for attachment to a major length of the conventional, flexible, non-self-supporting ignition wire. The short length is of a self-supporting construction, typically of a solid core, heavy gauge metal wire that will retain a shape imparted to the conductor whereby the conductor can be bent into a form which spaces the conductor a safe distance from hot surfaces such as the exhaust manifold and from the other ignition wires.

Abstract: An adapter, particularly for detachably connecting an electrical floor-treating device to an operating appliance, includes a first housing having a first longitudinal axis, a first end portion to be connected to the operating appliance and a second end portion. The adapter further includes a second housing having a second longitudinal axis extending substantially transverse to the first axis, a third portion adapted to be mounted on the second end portion for rotation relative thereto and about the first axis. The second housing is adapted to be mounted on the treating device for pivotal movement relative thereto about the second axis and for rotational movement with the treating device about the first axis.

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: Centrifugal processing apparatus in which a processing chamber is rotatably mounted with respect to a stationary base. An umbilical cable segment is fixed at one end substantially along the axis of the processsing chamber at one side thereof, with the other end of the cable segment being attached substantially on the axis in rotationally locked engagement to the processing chamber. In order to minimize stress on the cable segment during rotation thereof, the cable segment is fastened to a connection member which rotates about the axis of the processing chamber and also about another axis which is angled with respect to the processing chamber axis. The other axis has an orientation within the limits of survival of the cable segment during the twisting of the cable segment about its own axis.

Abstract: A coupling which allows for linear or angular displacement as well as for expansion or contraction is comprised of two independent hubs adapted to be threaded on the ends of opposed spaced apart conduits, a flexible grounding strap connected between said hubs, a flexible watertight jacket substantially surrounding and clamped to said hubs at each end and a tubular raceway having flared ends moveably retained within each of said hubs to protect wires running through the coupling.

Abstract: A flexible connector is disclosed for electrically and mechanically connecting the ends of diverging light tracks, the connector being characterized by its ability to be deformed or bent in any of a series of directions normal to the axis thereof and to maintain itself in said bent or deformed condition.

Abstract: A high reliability universal electrical swivel fabricated of insulative material virtually impervious to moisture or corrosive acid or alkaline vapors and having substantial flexural elasticity provides a conduit for an electrical conductor rotatable and tiltable about orthogonal axes. The swivel is adapted to retain its fixed position notwithstanding severe vibration and shock. Novel design minimizes stress on the internal conductor and its insulation thus minimizing the possibility of internal short circuits. The swivel components are especially adapted for economical mass manufacture and assembly.

Abstract: A thin conductive sheet having elongated openings extending inward from the edges to define a connecting arm extending from one end of one connecting surface to the diagonally opposite end of a second connecting surface. In one embodiment, the connecting arm extends directly from one corner to the diagonally opposite corner. In a second embodiment, the connecting arm changes direction to define a generally Z-shaped, reverse diagonal connecting path. Ties are provided across the elongated openings to hold the interconnector together during assembly, but which later break to permit the elongated openings to open up to define the connecting arm. One or more slits may be provided in the connecting arm to reduce buckling out of plane. The interconnector may be chrome plated in the central area to keep solder from flowing into the elongated openings and slits. To minimize the stress transition from the plated to the unplated portion, the plating terminates in a sine-wave-like wavy line which is 180.degree.

Abstract: A collapsible camera apparatus of a type having at least two sections connected in pivotal relation to each other with a substantially planar surface associated with one section pivotal about a line orthogonal to a second substantially planar surface associated with the other section, further includes circuit board means angularly and permanently prefolded in interconnecting relation between the planar surfaces in a manner whereby the angular prefold remains substantially uneffected by pivotal motion between the sections. The circuit board is arranged to flex in a gradual manner over an extended length portion thereof thus accommodating pivotal motion between the camera sections without flexing the printed circuit board means about its angular prefold.

Abstract: A swivel base assembly for supporting a device such as a video display terminal (including a video monitor and a keyboard) and including means for rotating the device through a large angle, for example, 270.degree.. The swivel base assembly includes a tray on which the device is positioned and a circular base member having a space for containing a circularly- wound data-carrying cable, such as a coaxial cable, for use by the device on the tray. The base member also includes a pair of upstanding spaced stop members formed therein and arranged to cooperate with a depressed stop member formed in the tray to establish the aforementioned 270.degree. range of angular rotation.

Abstract: A rotating platform is supported above a stationary surface by means of a rotating support. The platform and support are driven about their respective axes in the same relative direction at speeds in the ration of two-to-one respectively. A terminal is located on the stationary surface is communication with a second terminal positioned on the rotating platform. An energy-guiding channel such as an electrical conductor is connected between the first and second terminals and is positioned to extend closer to the axis of said rotating support than the rotating support and subsequently up to the rotating platform, around the platform, onto the surface to which the second terminal is connected. The surface of the rotating platform upon which the second terminal is located is positioned remote or away from the stationary surface so that the electrical conductor is forced to follow a path around the outer edge of the platform down to the stationary surface.