For use with a wiring system having a plurality of wires, a control device having a detector having a plurality of actuatable, observable parts which are numbered, and an electrical circuit coupled with the detector for actuating a specific numbered part thereof when a lead of the circuit is coupled to a particular wire. The apparatus is especially suitable for use in wiring system in which a plurality of wires extend from respective remote stations to a central station. In one embodiment, numbe...

A method for determining misalignment between two semiconductor dies is described in which signals are transmitted through a first subset of an array of proximity connectors that are proximate to a surface of one of the semiconductor dies and received through a second subset of an array of proximity connectors that are proximate to a surface of the other semiconductor die. A spatial beat frequency is determined from the received signals. This spatial beat frequency corresponds to misalignment-in...

Apparatus is disclosed for storing the circuit conditions existing between a plurality of points established by the conductors of a "known" multiconductor harness and for comparing the circuit conditions existing between a plurality of points established by the conductors of a multiconductor harness to be tested with the circuit conditions of the conductors of the said known multiconductor harness. The apparatus comprises storage means for storing information representative of circuit conditions...

A hoisting assembly that is adapted to be mounted to the frame of a vehicle where a hoisting device extends an attachment member such as a hook to connect to an engagement location of the differential where the hoisting assembly is positioned substantially vertically above the differential and when the hoisting assembly supports a differential the load is transferred to the frame of the vehicle.

Method and apparatus for controlling removal of gaseous cryogen from a continuous tunnel type freezer wherein the cryogen and product to be frozen travel in counterflow heat exchange relation to minimize ambient atmosphere moving into the tunnel and out of the exhaust system with the exhausted gaseous cryogen.

A portable lifting device provides the heavy and massive object lifting, loading and/or unloading through the window opening and includes a plurality of telescopic stanchions, each of which comprises at least two of a plurality of telescopic sections, a frame, comprising brackets connected to triangular trusses, connected by the adjustable holders to the telescopic stanchions, a girder with the installed trolley, a grip, a winch with an electrical motor, and a hook unit.

An improved method for the manufacturing of wavy pre-preg material that moves a first group of rollers in a transverse and a longitudinal direction with respect to a second group of rollers, to place a sinuous waveform in a fiber reinforced matrix for the manufacture of a wavy pre-preg material. The fabrication of wavy fiber pre-preg (fibers pre-impregnated with epoxy resin as an example) can be accomplished with an automated control system that permits the creation of non-periodic or mixed wave...

An arrangement to measure cross talk properties in transmission lines wherein an interfering line is connected to a transmitter having an adjustable frequency and the far end of an interfered line is connected to a tunable superheterodyne receiver, and a voltage measuring system is provided at the output thereof. The reading data is obtained from the cross talk voltage measured during the tuning of the superhetertodyne receiver to the transmission frequency. A superheterodyne receiver tunable to...

This specification discloses an improvement in method and apparatus for identifying at a remote position conductors in a multiconductor means having the conductors identified at one end. The improvement is characterized by sequentially stepping by control signals from the remote position a sequential stepping switch onto contacts to which the identified conductors at the one end are connected, until a specifically identified conductor is connected with the sequential stepping switch. Thereafter,...

A method for determining the distance to a fault on power transmission lines from the time of propagation of electromagnetic waves along the line, in which at least at one point on the line the timer interval is measured between the instant of arrival of the leading edge of a wave occurring at the fault and propagated towards said point on the line around the loop formed by the line wires, and the instant of arrival of another wave occurring likewise at the fault and propagated towards said poin...