Abstract: A core grip for use in conjunction with a conduction cable having an outer conductor and core element in a hollow elongated compression valve wherein the grip is disposed on an end portion of the core of the cable after the outer conductor has been stripped away and the compression valve is disposed about the grip and is crimped into an engagement with the grip which in turn mechanically engages the core wherein the core grip is formed from two separate semi-circular cylindrical halves made of a deformable metal which when joined together from a solid cylindrical grip having an axial core therethrough coated with grit which is adapted to receive the core of the cable.

Abstract: A microcircuit package in which one or more leads can be grounded to the package by a simple procedure which is performed on a package of usual construction. A braze preform is placed over a lead to be grounded, a metal washer is disposed over the lead and preform, and the assembly is brazed to cause fusing of the washer to the lead and to the header to provide a low resistance grounding connection between the lead and package.

Abstract: Disclosed is an electrical cable embodying a plurality of individually, electrically insulated electrical conductors for use in adverse environments, such as oil wells. The cable comprises an elongated strut of rectangular cross-section interposed between two of the conductors and formed of a plurality of bendable sections of rigid cross-section for protecting the insulation on the conductors from external disruptive forces. The strut may be used with a channel member that protects the insulation from both internal and external disruption resulting from usage in the adverse environment.

Abstract: This induction winding includes a magnetic core formed by a vertical stack of iron disks separated by air gaps. The disks (8) include a plurality of sector-shaped portions (1) each of which is constituted by a succession of magnetic laminations (6), a first part (12,13) of these laminations are all of identical length and a second part (14) are of regularly decreasing length from one lamination to the next. The direction (F.sub.1) in which the laminations are rolled in the mill is perpendicular to the axis (7) of the winding. The increased magnetic loss that this causes is compensated by the improved filling coefficient that can then be readily obtained.

Abstract: A connector assembly for metallic wires comprises a tapered spring coil member made from stiff elastic wire having a distended end at the apex and a thermoplastic member having an elongated shell with a central bore closed at one end by a wall and having on the other end a substantially circular opening. The inside of the bore is substantially tapered such as to be adapted to house the tapered spring coil member. Two recesses are provided in the tapered inside wall of the thermoplastic member running on opposite sides substantially parallel to the central axis of the bore for providing a locking position to the distended end of the inserted spring coil member. A protrusion near the open end of the thermoplastic member retains the tapered spring coil member inside of the thermoplastic member. The thermoplastic member preferably on its outside forms a frustrum of a cone with, in addition, two substantially conical section planes being provided to allow for easy gripping of the connector assembly.

Abstract: A lighter-than-air (LTA) wind energy conversion system (WECS) wherein the LTA envelope carries a main rotor and electrical generator to take advantage of high wind speeds available at high altitudes. The LTA envelope is adapted to rotate with the main rotor and is tethered to a ground based mooring system designed to provide self-orientation for the LTA envelope. In a preferred embodiment, a hollow bladed main rotor is provided at the midpoint of the rotating envelope. The rotor drives an induction turbine positioned within a substantially linear duct which is, in turn, preferably located along the longitudinal axis of the rotating LTA envelope. The output of the induction turbine is coupled to an electrical generator. In another embodiment, small wind-driven generators are positioned on the tips of the blades of the main rotor. The outputs of both embodiments are transmitted to the ground via the tethering system.

Abstract: Disclosed is a platen cover for a copying machine in which the bound volume copying platen is not used for sheet document copying. The cover includes a sheet document transport and handling mechanism with the cover having an independently liftable lid to provide access to the transport and handling mechanism. Substantially uniform counter-balancing of the cover, containing the transport and handling mechanism, or the lid alone, from the closed hold-down position to the raised stay-open position, is provided by a torsional helix spring positioned about the pivotal axis of the lid counterbalancing the lid, and a gas spring acting on the transport and handling mechanism through a lever arm about the same axis, counterbalancing the mechanism.

Abstract: An improved power plant incorporating a gas turbine and a magnetohydrodynamic (MHD) generating means is provided wherein a plurality of coolant conducting fins are disposed in the diffuser region of the duct between the MHD generator and the turbine. The cooling fins are provided with means to supply compressed coolant to the diffuser duct for mixing with the combustion gases to provide optimum gas pressure, temperature and velocity for driving the turbine.

Abstract: A control circuit for driving an electric motor at a substantially constant speed, the motor including a rotor with at least one pair of permanent magnetic poles and a stator provided with a first and second coil, the control circuit including a control element for supplying energizing pulses to the coils dependent upon a detected rotor speed, the control element having a normal speed mode wherein the rotor speed is detected by the first coil and wherein only the second coil is supplied with energizing pulses at a frequency corresponding to single coil driving and a self-starting mode wherein the energizing pulses are supplied alternately to the first and second coils to accelerate the rotor to a desired speed, the control element including rotor acceleration and braking circuitry operable during the normal speed mode and including a desired frequency pulse generator, an actual frequency pulse generator, a phase comparator for comparing the widths and phases of the desired and actual frequency pulses, and an

Abstract: An arrangement for detecting an underground continuous length item includes an electrically conductive wire constituted by covering a flexible metallic core wire with an outer coating layer made of a flexible and electrically conductive high polymeric organic material. The electrically conductive wire is positioned under the ground along the underground continuous length item and is supplied with a high frequency current. Electromagnetic waves are emitted from the wire therefrom for detecting the location of the underground continuous length item located underground. Since electric current is propagated through the ground via the coating layer of the wire upon supply of high frequency power to the wire, whereby it becomes possible to detect from the ground surface the location of the continuous length item located underground in the case where the wire is cut.

Abstract: An electrical component includes an electrical component member mounted centered and adjusted in a cup-shaped housing having a rectangular cross section, the housing having an opening through which lead wires from the electrical component member protrude in the same direction, and hardened sealing compound securing the electrical component member in the cup-shaped housing, the cup-shaped housing of rectangular cross section having at least on two opposite sides thereof, integrally formed tabs consisting of the same material as that of the cup-shaped housing, the tabs being bent into the interior of the cup-shaped housing and resiliently clamping the electrical component member in the housing, the tabs being encased in the hardened sealing compound and serving as centering and adjusting means for the electrical component member, the tabs having a V-shape and forming channels wherein the lead wires of the component member extend.

Abstract: A Darrieus-type vertical axis wind turbine is disclosed which includes a vertically extending rotor tube mounted on a support structure with two or three rotor blades of troposkein configuration on the rotor tube for rotating the tube in response to wind energy and thereby drive a generator to produce electrical power. The turbine includes an erection hinge which permits assembly of the rotor tube and blades at close to ground level followed by upward hinging of the rotor assembly to a vertical position. It also includes a system for automatically lubricating the top bearing upon erection and a system for visually tensioning the guy cables.

Abstract: A transformer has an insulator interposed between respective primary and secondary coils wound on a coil bobbin which has an axial winding part and opposing radially extending flanges. The insulator is made from a continuous sheet of material which is corrugated to provide an insulating base having a width larger than the width of the winding part of the coil bobbin and from a continuous, plastic insulating sheet member having substantially the same width as the winding part. The corrugated insulated base material and insulating sheet member are wound between the primary coil and the secondary coil and the corrugated insulating base is bent at both side edges to be L-shaped to intimately fit to the inner surface of the flanges of the coil bobbin so as to provide an insulator which positively prevents coil wire at each end portion of the coil from dropping out of alignment with respective coil turns.

Abstract: A device for chocking an inverted type current transformer when transported on its side.It comprises at least one jack (12) within the metal enclosure (1) but operable from outside the latter and disposed, during transportation of the transformer on its side, between the transport platform (36) and the magnetic core (8) of the current transformer to eliminate any cantilever loading.

Abstract: Semiconductor chips carrying chemically sensitive field effect devices are encapsulated by tape automated bonding techniques, wherein one tape layer has a beam lead pattern disposed thereon which terminates in the chip bonding pad pattern over an opening in the tape. A tape layer for sealably covering the beam lead pattern and the chip has openings which are respectively coincident with the chemically selective membrane systems of the field effect devices.

Abstract: In known overhead telephone cables comprising two individual encased and stranded conductors, each consisting of a plurality of copper wires for the transmission of signals, and steel wires for load bearing purposes, the problem of relatively high susceptibility to corrosion at leakage points in the casing due to water penetration is solved by replacing the steel wires with bundles of stretch-resistant synthetic fibres, e.g. aromatic polyamide fibres, and the tendency of spirally wound synthetic fibres, or bundles of fibres, to shift towards the center of the conductor when the cable is under tension, and thus allow the cable to elongate is prevented by arranging the copper wires and bundles of fibres so that they position themselves mutually. The coherency of the bundles of fibres required for this purpose may be obtained, for example, by stranding or twisting the fibres in the bundle or impregnating the bundle with a resin, preferably colophony.

Abstract: A winding stem mechanism for a watch having a winding stem and a pinion with a shaft body. The winding stem and pinion are dimensioned to slidably fit within a base plate recess, and have respective facing ends. One facing end is provided with a square blind bore, and the other facing end is square and complementary to the blind bore and dimensioned to slidably fit within the blind bore so that the winding stem can slide away from the pinion without displacing same and the winding stem can slide toward the pinion and displace same in the direction of travel of the winding stem. The pinion engages a setting wheel for setting a wheel train.

Abstract: A wind power electrical generator system having improved efficiency including a wind mill which activates an air compressor to generate a supply of pressurized air. An air motor activated by the supply of pressurized air drives a generator to produce electrical power. A waste air recovery mechanism, activated by the waste air from the air motor produces rotary energy assisting the wind mill in activating the air compressor.

Abstract: A laminated magnetic core characterized by an electromagnetic core having core legs which comprise elongated apertures and edge notches disposed transversely to the longitudinal axis of the legs, such as high reluctance cores with linear magnetization characteristics for high voltage shunt reactors. In one embodiment the apertures include compact bodies of microlaminations for more flexibility and control in adjusting permeability and/or core reluctance.

Abstract: A shield mechanism for isolating line and load stabs within a 2500-4000 ampere circuit breaker compartment is disclosed having a primary operating arm for operating a lower moveable shield and an upper moveable shield interconnected by a reversing bell crank link. Interconnection between the bell crank link and an intermediate lever is made by means of a lower expansion link. The corresponding downward motion fo the lower expansion link, when the circuit breaker is inserted in the compartment, forces the upper moveable shield to pivot into an open clockwise direction by connection between the upper moveable shield, the bell crank link and an upper expansion link against the force exerted by a return spring. Direct connection between the lower moveable shield and the intermediate lever forces the lower moveable shield into an open counterclockwise direction.