Abstract: A transporter vehicle comprises two lifting devices which carry respective jacks and which can be joined at their ends by cross bars to form a rectangular dolly with a central opening therein. The lifting devices each have front and rear wheels so that the dolly can be rolled on floor surfaces. In practice, the two are placed on opposite sides of a load seated on a floor in the opening between those devices, the jacks are placed under the load, the cross bars are assembled with the side frames, the load is jacked up on its opposite sides to be above the floor and the load may then be transported. The jacks may include linkages which cause the load to be lifted wholly vertically while not undergoing any horizontal translational movement.

Abstract: A portable data carder assemblage includes smaller and larger plastic cards carrying respective embedded semiconductor chips for transferring data from the miniature card and standard-size card to, respectively, a small personal communicator cellular telephone set and a larger cellular set, the two cards being held in that assemblage by a pliant plastic sheath and a pocket on the sheath into which, respectively, the larger and smaller cards are inserted for safekeeping between uses of the cards. The assemblage may be conveniently transported by being lodged in a card-holding recess in the wallet of the owner of the assemblage. When that owner has only a personal communicator set, the standard-size chip carrying card is replaceable in the assemblage by a standard-size chipless card having therein an aperture into which the small card may be displaced by deformation of the sheath so that the assemblage takes up less room in the wallet.

Abstract: A microwave directional coupler comprises a dielectric coupler board, elongate metallic strip conductors deposited on front and back surfaces of the board and having respective central portions electrically broadside coupled with each other through the board, and respective right and left hand lead portions terminating in ports at the bottom of the board. Metallic ground plane regions cooperate with those strip conductors to form corresponding microwave transmission lines comprising respective signal conductors provided by said strip conductors and respective grounded conductors provided by said regions. The ground plane regions are in the form of expanses of metallic layers deposited on the same surfaces of the board as are such strip conductors. Ground plane regions on opposite sides of the board are electrically connected by plated-through holes passing through the board.

Abstract: A transporter vehicle comprises two lifting devices which carry respective jacks and which can be joined at their ends by cross bars to form a rectangular dolly with a central opening therein. The lifting devices each have front and rear wheels so that the dolly can be rolled on floor surfaces. In practice, the two are placed on opposite sides of a load seated on a floor in the opening between those devices, the jacks are placed under the load, the cross bars are assembled with the side frames, the load is jacked up on its opposite sides to be above the floor and the load may then be transported.

Abstract: A transporter vehicle comprises two lifting devices which carry respective jacks and which can be joined at their ends by cross bars to form a rectangular dolly with a central opening therein. The lifting devices each have front and rear wheels so that the dolly can be rolled on floor surfaces. In practice, the two are placed on opposite sides of a load seated on a floor in the opening between those devices, the jacks are placed under the load, the cross bars are assembled with the side frames, the load is jacked up on its opposite sides to be above the floor and the load may then be transported. The jacks may include linkages which cause the load to be lifted wholly vertically while not undergoing any horizontal translational movement.

Abstract: A circuit breaker has ferrule type line and load terminals which clip on to portions of, respectively, input and output current buses for the breaker to permit the breaker by a mere plug-in action to be fastened to those two buses. The output current bus is provided by an adapter comprising a molded plastic case having at its top a receptacle for an end lug on a cable for distributing current from the breaker to a load, and having at its bottom a cylindrical metallic contact to which the load terminal of the breaker is or may be clipped. A metallic bus strap extends in the case from that contact to terminal means in the receptacle for connecting the upper end of the strap to such lug. The case has formed on the outside thereof a horizontal guideway into which the input current bus may be slid to thereupon be held insulated from, and fixedly fastened with, the output current bus strap in the adapter.

Abstract: A rectifier-capacitor power supply has source terminals across which is connected the series combination of a voltage dropping resistor and a transistor circuit comprising (a) an NPN resistor connected in a common emitter configuration and having its collector connected by a load resistor to the voltage dropping resistor, and (b) a PNP transistor connected in a common collector configuration across the series combination of the NPN transistor and its load transistor. A pair of output terminals for a load are connected to opposite ends of that last named series combination. Also connected between those opposite ends is a voltage divider circuit consisting of two resistors in series and having a junction directly connected to the base of the NPN transistor.

Abstract: In an apparatus for testing cable (comprising a metallic core jacketed by insulation) to detect localized defects on the insulation caused by its carbonization, the cable is moved in an axial path through an array of five ring electrodes radially spaced from that path and spaced from each other along the path by axial gaps. The first and fifth electrodes from left to right are grounded while high voltage circuits supply current to the middle three electrodes at DC voltages which causes (a) the second and fourth electrode, and (b) the third electrode to be positive and negative, respectively, relative to ground, and which voltages are high enough to produce flow of charge through the atmosphere adjacent the electrodes, and between the electrodes and the moving cable.

Abstract: A microwave cavity closure structure encloses an upper splitter cavity bounded at its top and bottom by, respectively, a rigid metal plate and a flexible sheet metal dish and (b) a lower combiner cavity bounded at its top and bottom by another such dish and another lower such plate. Each such cavity has a central region occupied by a raised circular boss, and the lower plate bounding the bottom cavity mounts, outward of the central boss, two concentric annular sheet metal rings each having a flat top and peripheral flanges extending from the margins of that top down into annular grooves in the lower plate. One or more rings of dielectric posts are disposed in each cavity radially between the central boss therein and the cavity periphery to vertically space at the ring's location the plate and dish of the cavity by a distance determined by the posts, while concurrently permitting the dish to be flexed in the cavity's central region for cavity tuning purposes.

Abstract: A microwave cavity closure structure encloses an upper splitter cavity bounded at its top and bottom by, respectively, a rigid metal plate and a flexible sheet metal dish and (b) a lower combiner cavity bounded at its top and bottom by another such dish and another lower such plate. Each such cavity has a central region occupied by a raised circular boss, and the lower plate bounding the bottom cavity mounts, outward of the central boss, two concentric annular sheet metal rings each having a flat top and peripheral flanges extending from the margins of that top down into annular grooves in the lower plate. One or more rings of dielectric posts are disposed in each cavity radially between the central boss therein and the cavity periphery to vertically space at the ring's location the plate and dish of the cavity by a distance determined by the posts, while concurrently permitting the dish to be flexed in the cavity's central region for cavity tuning purposes.

Abstract: A circuit breaker has a line terminal comprising a pair of vertically spaced resilient terminal strips which extend in the transverse horizontal direction out from the breaker's housing to free ends of the strips, and which strips have formed therein near those ends respective bends disposed opposite each other and vertically projecting away from each other to bound opposite sides of a circular cylindrical cavity defined between those strips. A horizontal rail for conducting current is aligned in its lengthwise direction normal to those strips, and the rail has a flange received in the cavity in electromechanical contact with the strips, and also, a web extending in the transverse horizontal direction from the front flange out beyond the terminal to a rear flange for the rail. The shape, size and mass of the rail promote reduction of the temperature generated at the line terminal by the inrush of current carried by the rail in the presence of a short circuit in the load served by the breaker.

Abstract: A building entrance protector unit includes plurality of electrical connectors providing electrical connections between wire pairs leading from telephone stations of subscribers in the building and wire pairs from the local telephone networks serving the unit, these connections being interruptible by the subscribers for the purpose of plugging in their telephone sets to the network to test these sets. The connections are tamperproofed by a hasp mechanism providing hasp leaves respective to these connectors and each lockable in a first position impeding access to the corresponding connection by attachment of a padlock to a hasp staple projecting through that leaf. That locking may be overridden by a telephone network technician by a releasing from a held position of a common mounting for all the hasp staples.

Abstract: A housing for telecommunications equipment has therein a vertical passageway extending in said housing alongside racks for holding such equipment and between upper and lower entry ways provided by said housing to admit into said passageway from either above or below one or more external cables for servicing equipment in the racks. For each rack there is a flexible extension cable having a front end with a coaxial fitting thereon disposed in the passageway and running from such front end to the corresponding rack to there be coupled with a cable receptor connector. The coaxial fitting on each extension cable is coupleable to an end coupling on the free end of a corresponding external cable. The coaxial fitting on each extension is mounted on a rockable platform pivotally supported from the corresponding rack and angularly selectably adjustable between and secured at two positions of the platform at which the fitting thereon points, respectively, upwardly and downwardly.

Abstract: A remote terminal for a subscriber loop carrier network operates by flow from one to another of units in the terminal of time division multiplexer data streams of binary valued digital bits. Each stream has the format of periodic frames of time slots of which each frame consists of (a) a service time slot containing only service bits, and (b) a plurality of customer slots which contain mostly bits coded with data from customers of the network, but which also include a less number of service bits. Each unit includes encoding means responsive to local synchronizing and clock pulses derived from data incoming to the unit to encode on each frame of the outgoing data stream synchronizing information consisting of (c) a synchronizing pattern comprising a coded sequence of service bits localized in the frame's service slot and (d) a spoiler pattern formed of service bits distributed over customer slots in the frame.

Abstract: A building entrance protector unit (20) includes plurality of electrical connectors (86) providing electrical connections between wire pairs (104, 105) leading from telephone stations of subscribers in the building and wire pairs (57,58) from the local telephone networks serving the unit, these connections being interruptible by the subscribers for the purpose of plugging in their telephone sets to the network to test these sets. The connections are tamperproofed by a hasp mechanism (87) providing hasp leaves (130) respective to these connectors and each lockable in a first position impeding access to the corresponding connection by attachment of a padlock (170) to a hasp staple (150) projecting through that leaf. That locking may be overridden by a telephone network technician by a releasing from a held position of a common mounting (111) for all the hasp staples.

Abstract: Band pass filter incorporated in a duplex base station cellular telephony transmit/receive system have aluminum parts having plated thereon a composite coating which is entirely of nonferromagnetic materials (to reduce creation in the filter of intermodulation products) and which consists of a zinc layer on an aluminum substrate and copper and silver layers outward in that order from the zinc layer and having respective thickness of at least about 300 microinches, and of at least about 500 microinches (to reduce resistance losses incurred by microwaves traveling throughout the filter). The filters also include other parts which are interiorly of brass and some of which are silver plated, all to the end of further reducing such intermodulation products and losses. The filters have input and output ports provided by coaxial fittings press fitted into bores in a wall of the filter to thereby reduce intermodulation products caused by contact non-linearities.

Abstract: A speakerphone system has a speaker and microphone in a common acoustic environment and electrically preceded and succeeded, respectively, by receive and transmit sections and adapted, respectively, to reproduce as sounds by such speaker signals passed through such receive section from a remote station, and to convert sounds sensed by such microphone into signals passed through such transmit section to such station. A computer derives from the signals from the microphone an electric quantity which is a measure of the average audible ambient noise level in such environment, and the computer uses such quantity as one factor among others in switching signal losses between such two sections so as to change the state of operation of the system between transmit and receive states.

Abstract: Circuit packs to be tested are loaded into first and second test chambers commonly served by a hot liquid reservoir and by a cold liquid reservoir of which both are coupled to both chambers by a liquid handling system containing valves controlled by program determined signals from a controller unit to direct liquid flows as desired between the chambers and reservoirs. During liquid contact periods for the chambers, liquid from the hot reservoir is intermittently pumped into each of the chambers at times different for the two chambers, and liquid from the cold reservoir is intermittently pumped into each of the chambers at times which are different for the two chambers and intervening at each chamber the times of hot liquid pumping thereto, whereby the packs in each chamber are alternately heated and chilled by such liquid so as to be thermally stressed, and the responses of the packs to such stressing are detected.

Abstract: A microwave splitter/combiner has a flat housing comprising similar top and bottom horizontal circular cover plates joined at their peripheries by an annular flange of short vertical length. The top plate and flange mount on their respective outsides a primary signal transfer coaxial connector and a plurality of secondary signal transfer connectors of which the latter are spaced around the flange. A plurality of first coaxial line sections inside the housing lie in a common horizontal plane and are all coupled to the primary connector and each coupled to a respective one of such secondary connectors, the housing being suitably apertured to permit such couplings. A plurality of second coaxial line sections inside the housing are respectively coupled to such first sections and are all coupled to each other in such fashion as to suppress the appearance at the secondary connectors of extraneous signals.

Abstract: A coaxial fitting comprises, a metallic tubular ferrule having a forward portion with knurling thereon and a rearward portion with external threads thereon by which such fitting is coupleable to a coaxial cable, the fitting also comprising an inner metallic rod conductor extending in the ferrule in concentric radially spaced relation therewith, and a dielectric plug disposed in the ferrule radially in contact with the ferrule and inner conductor to maintain them in fixed relation, the plug being longitudinally in contact with an inwardly projecting internal annular shoulder in the ferrule. The knurled portion of the fitting is adapted to be press fitted into a bore formed in the housing of a microwave device to provide a port for microwaves supplied to or from such device. The metallic parts of the fitting interiorly comprise copper and have precious metal platings thereon to reduce microwave resistance losses.