Abstract: This invention relates to the field of electrical connectors, and particularly concerns electrical connectors with multiple contacts requiring keying of the mating connector parts. With prior art devices, when more than one connector pair is used in a system, different connector parts must be chosen which have a different keying configuration for the key and groove. With another prior art device, which uses a single type connector part, it is necessary to sacrifice one contact position in the connectors. The present invention overcomes the deficiencies of the prior art noted above by providing a keying device which permits manufacture and production of a single type of male or female connector part and yet does not require the sacrifice of contact positions within the connector parts to effectuate the keying.

Abstract: A separable in-line fiber optic connector adapted for coupling a pair of optical fibers or a single optical fiber and a light source or detector. The fiber connector includes a terminal plug member having a through hole extending axially therethrough for receiving an optical fiber. The plug member is axially split so as to comprise first and second separate longitudinal portions defining the through hole which are transversely matable for clamping the optical fiber therebetween. The plug portions are interengageable in a manner preventing any relative axial displacement therebetween. A housing member receives the terminal plug member and confines the split portions to a mating position in which they firmly clamp the optical fiber. The separate longitudinal plug portions are transversely ribbed along at least an axial section of the through hole for engaging the optical fiber to prevent axial displacement thereof.

Abstract: A novel communication system and means for interconnecting communication trunk lines to multiple communication terminals is disclosed. The interconnection apparatus includes multi-circuit connectors coupled to the trunk lines and connector members coupled to information transmission cables routed from the various terminal stations within the communication network. Means are provided for interconnecting the multi-circuit connectors or trunk lines to the connector members so that any one of the communication channels may be associated with any one of the stations simply by mating one of a plurality of relocatable connectors to any of the various connector members. The components of the interconnection apparatus are characterized by a modular construction and adaptable to factory assembly to thereby provide versatility and reliability beyond that obtained with prior art systems.

Abstract: An electrical penetration apparatus is described for mounting within a containment wall of a nuclear reactor installation to pass electrical currents while avoiding the outward leakage of radioactive gasses, which can be constructed at relatively low cost. The apparatus includes a pair of cup-shaped casings that face away from one another and have slightly separated base walls, a group of rod-shaped conductors extending through aligned holes in the base walls of the casings and through the separation space between them, and a quantity of potting material disposed in each of the casings and sealed to the conductors and to the inside surfaces of the casings.

Abstract: Control of skew, bow and yield in circularly knit pile fabric is accomplished by providing the fabric tube as knit and before longitudinal slitting with identification mark means so aligned with respect to selected longitudinally spaced courses that after the fabric tube has been slit and spread out flat for tentering, skew, bow and yield can be readily controlled in response to detecting means for viewing the identification mark means.

Abstract: A channelized receiver system for use in conjunction with a scanning antenna wherein a received rf signal is provided to a plurality of filters each of which has a passband corresponding to a portion of a search bandwidth. The filter output signals are processed to provide a signal related to the frequency of the received rf signal for tuning a narrow band, superheterodyne/receiver to the frequency of the received rf signal. More particularly, the received rf signal is divided so that a first portion is applied to a first group of filters, and a second portion applied to a second group of filters. The filters in each group have passbands defining non-contiguous portions of the search bandwidth. The invention also provides a voting logic circuit in which outputs from each of the filters in each filter group are processed to determine which filter in each group has the highest output signal. Circuitry is provided for comparing these output signals to predetermined amplitude and width criteria.

Abstract: A square root processing apparatus wherein an unknown number is sequentially squared and compared to a number whose square root is to be determined. The result of each comparison determines the state of a bit in the square root being determined. More specifically, the square root processor includes a Y register containing a number whose square root is to be determined, and an X register which is used to develop the square root of the contents of the Y register. The apparatus provides a means for initially setting the most significant bit stage of the X register to one, the remaining bit stages containing zeros. The contents of the X register are then squared by a high speed digital multiplier and compared with the contents of the Y register. If the squared number is greater than the contents of the Y register, the most significant bit stage of the X register is reset to zero. The apparatus then sets the next most significant bit stage of the X register to one and repeats the above-described sequence.

Abstract: An electrical connector housing for removably retaining an electrical contact consisting of a dielectric body with a passageway having a flexible latch which cooperates with a forward stop and abutment shoulders to lock the contact in the housing without interfering with the termination section of the contact.

Abstract: This invention relates to electrical and optical fibre connectors. In the past, the terminal ends of electrical conductors or optical fibres retained in a connector have not reliably maintained a desired separation of the ends of optical fibres or a secure conducting connection formed between electrical conductors. According to the present invention, there is provided an improved optical fibre or electrical connector, comprising a termination member suitable for terminating an electrical conductor or an optical fibre, the termination member being slidably mounted through an aperture in a connector body-member, and a biasing element resiliently biasing the termination member against sliding movement in a first direction relative to the connector body-member.

Abstract: A connector assembly is disclosed which includes first and second mating connector members, and a coupling ring carried by one of the connector members for moving the other connector member axially into mating relation therewith. A visual and tactile indicating assembly is operatively associated with the connector members and the coupling ring and includes a radially inwardly self-biased split indicating ring carried by the coupling ring. The indicating ring is movable radially relative to the coupling ring from a retracted position to an outwardly projecting indicating position in response to a predetermined positioning of the other connector member in relation to the one connector member and the coupling ring. The ring provides an omni-directional visual and tactile indication of the relative positioning of the mating connector members. The connector assembly also includes an audible indicating mechanism which provides a self-locking feature for the connector assembly.

Abstract: A test adapter plug for connecting a solid wire conductor to a wire-wrap terminal post includes an elongated insulating housing having first and second openings respectively dimensioned to conform to the terminal post and the solid wire conductor, with the conductor opening accommodating passage therethrough only of the bare wire and not the insulation thereon. The housing contains two spaced-apart electrical receptacles interconnected by a conductor or a circuit element, such as a diode, each receptacle having a pair of spaced-apart spring contacts with the pairs of contacts respectively disposed adjacent to the two openings in alignment therewith for receiving and electrically contacting the terminal post and the solid wire conductor. The housing carries a strain relief member adjacent to the conductor opening for receiving the insulated portion of the conductor.

Abstract: An apparatus useful in a system for analyzing an input waveform for generating precisely-timed strobe sampling pulses. In response to detection of the waveform leading edge, a timing source operating at a very high frequency initiates a series of strobe pulses which occur at a considerably lower frequency. The strobe pulses are then used to successively sample the waveform. Depending upon the time duration of the input waveform, the waveform can be sampled at different effective rates by utilizing the same series of strobe pulses and disregarding selected samples.

Abstract: A tool for simultaneously inserting each of a plurality of wires in respective non-deforming insulation piercing terminals disposed in a terminal retaining body. The terminal retaining body is supported in the tool so that each terminal is aligned with a guide slot through which the wires are forced by the action of insertion tabs. The ends of the wires are retained in coil springs which are coupled to releasing handles so that the springs may be extended to facilitate removal of the wires. As the insertion tabs are forced through the guide slots, a cutting member disposed in each of the slots cooperates with an edge of the insertion tabs to cut the wire at a predetermined point. The tool is adjustable to accept terminal retaining bodies of various shapes and sizes.

Abstract: An electrical contact member formed from an axially extended tube is provided intermediate its ends with an axially extending insulation-opening slot. The slot is terminated at one end in an entry opening through the tube. The entry opening and an inwardly tapered entry ramp are formed by a free-ended piece of the tube wall bent into the inner opening of the tube. An insulated conductor may be inserted into the contact member in either of two ways: by insertion through the appropriate end of the tube and deflection by the entry ramp through the entry opening; or, by insertion through the entry opening and deflection by the entry ramp through the end of the tube. After insertion by either method, the ends of the insulated conductor may be pulled to force the conductor into a narrowed engagement portion of the slot where the insulation around the conductor is opened by spreading or cutting and electrical contact is made between the tube and the metallic conductor.