Abstract: In an exemplary embodiment, a test signal is sent by a base station at a suitable point in a communications protocol. According to the evaluation of the test signal transmission, a relatively high data rate or a lower more conservative data rate is selected by a mobile unit for the transmission of a relatively lengthy data message. The test signal can be associated with a query from a mobile unit having a message to send, or with a contention polling message from the base. Such test signal can be transmitted at the lower data rate where its transmission characteristics (e.g. signal strength, jitter or quality of transmission of known information) can be used to predict probable feasibility of transmission at the higher data rate, but most preferably the test signal is part of a high data rate contention poll which may alternate with a low data rate contention poll.

Abstract: A panel interlock system for connecting a plurality of wall panels together is disclosed. A locking clip is attached to the vertical edges of each wall panel. A vertical filler tube is used to connect adjacent wall panels together. The vertical filler tube is disposed between wall panels and slid down over locking clips which engage inner grooves extending through the length of the vertical filler tube. The vertical filler tube engages the locking clips in a concealed cam-action fastening technique.

Abstract: An instrument for measuring and converting scale dimensions such as, for example, mileage values on a map, includes a housing having a tracing wheel at one end for rolling along route lines on the map. The tracing wheel is connected to operate an actuator that causes a digital display to visually indicate a value representative of the degrees of rotation of the tracing wheel, and thus of the mileage between two points on a map. A scale adjusting device is connected with the actuator to adjust the actuator to obtain an accurate mileage indication for different scale maps.

Abstract: In order to improve a spindle drive for machine tools, comprising a housing, a spindle mounted in the housing, a drive motor arranged on the housing and a gear arranged in the housing and comprising an intermediate shaft driven by the drive motor and mounted in the housing via two shaft bearings spaced from one another as well as a first gear wheel seated on the intermediate shaft, wherein for driving the spindle as C-axis the first gear wheel engages in a first position with a second gear wheel driving the spindle so as to mesh with the second gear wheel without clearance, such that it is more simple in construction it is suggested that the first shaft bearing fix the intermediate shaft immovably on the housing in a direction transverse to its axis and that the intermediate shaft be adapted to be moved back and forth by the second shaft bearing relative to the second gear wheel in an adjusting direction between the first position and a second position, the gear wheels meshing with one another in the second p

Abstract: A mechanically pressurized electronic fuel injector for use in internal combustion engines is actuated by the engine valve train during the injection stroke. A control solenoid is mounted to the injector and has its axis inclined with respect to the axis of the injector. A control valve passage has its axis generally coaxial with the central axis of the control solenoid. Machining of the control valve passage is accomplished through the receiving boss for the control solenoid. High pressure sealing plugs, previously required to seal orifices in the exterior surface of the injector body which were needed to provide access to drill or machine the control valve passage, are completely eliminated. The drilling and machining of the control valve passage is accomplished without drilling through the exterior surface of the injector body.

Abstract: In its broad aspect, the present invention involves a governor-controlled gas compressor system for maintaining gas pressure in a gas reservoir between a predetermined first pressure level at which said compressor commences to compress pressurized intake gas from a supercharged source thereof and a predetermined higher second pressure level at which the compressor ceases to compress said gas. The system includes a gas dryer vessel intermediate said compressor and said reservoir to effect drying of the compressed gas. The gas dryer is provided with means for exhausting purge gas therefrom only when the pressure of the purge gas exceeds the pressure of the pressurized intake gas from the supercharged source thereof.

Abstract: A matching system for use with an inserting device adapted to insert into an envelope, which may be personalized for a particular recipient, one or more personalized inserts. The matching system ensures the proper assembly of mass mail items which include personalized components, each having an alpha-numeric sequence indicator printed thereon which corresponds to a given recipient. The matching system includes a number of video cameras, each positioned to sense an alpha-numeric sequence indicator on a different component of a mail item being assembled. The video camera create electrical signals in accordance with the sensed indicators which are processed by circuitry to develop and store digital representations of the sensed indicators. A controller, consisting of a master processing unit and a number of slave processing units, receives the stored digital representations and determines from them whether the sequence indicators on the personalized components to be assembled into a mass mail item match.

Abstract: The present invention relates to an apparatus for injecting viscous materials. The apparatus includes a vertically adjustable manifold valve which receives a continuously circulating supply of pressurized viscous material. The manifold valve is positioned above a container or mold cavity to be filled with the viscous material. When the manifold valve is opened, the viscous material is injected into the containers or molds.

Abstract: In face-protecting devices such as welder's shields and helments, a filter plate is supported on a support ledge adjacent the view port and is retained on the exterior of the device by a filter plate retainer adapted for attachment to the device.

Abstract: A tool apparatus for applying a large closing force to an object is disclosed. The tool apparatus, capable of improving the efficiency and ease of effort required to crimp nuts onto bolts and to cut materials such as multi-strand cables, bars and the like, comprises first and second jaws, each having first and second portions. Each first portion has a linking end. A mechanism is provided for interconnecting the first and second jaws, and for providing a pivoting point for each of the first and second jaws. A hydraulic cylinder drives a rod linearly along a drive axis from a first position to a second position with a drive force.

Abstract: The shield covers of an overmold shielded electrical connector have pivot detents stamped into their surfaces to provide a point for the shield halves to rotate on the center dielectric with a lever type action. When fully closed, the lever action assures that the cover tabs of the shield members securely contact the connector shell and maintain a positive ground.

Abstract: The solid marking composition of the invention includes from about 15% up to about 50% by weight of a polyethylene resin component having a specific gravity in the range of from about 0.95 up to about 0.96. In addition, the composition of the invention includes from about 20% up to about 55% by weight of a compatible plasticizer, and from about 3% up to about 20% by weight active material of a pigment. Optionally, the composition may include a pigment dispersing agent, such as a fatty acid. Further additives which may advantageously employed include extenders or fillers, oxidation stabilizers, UV stabilizers, and mold release agents. The composition of the invention is fabricated into marking instruments having unexpectedly improved eraseability, ease of application, barrel breaking strength, and tip breaking strength, while eliminating bloom entirely.

Abstract: Dock apparatus is provided for the receiving of portable, hand-held data retrieval devices to allow recharging of internal batteries and data communication with centralized computer systems. A frame having electrical contact elements at its inner end receives the hand-held device, which at its lower end is provided with electrical contact pads which engage the contact elements of the receiving frame when the hand-held device is fully inserted in the frame. Detents within the frame engage mating indentations in the hand-held device. The dock frames may be ganged in plural arrangements.

Abstract: A signal amplitude shaping circuit is interposed between a signal source and a signal input terminal of a frequency modulation circuit of a typical voice radio transmitter or transceiver unit. The amplitude shaping circuit includes a high-impedance sampling circuit which senses the steady state bias voltage at the signal input terminal during periods when no data are being transmitted. Upon receipt of a transmit-enable signal, the most recently sensed bias voltage is stored and positive and negative offset voltages are generated with respect to the stored voltage. One of the offset voltages is adjusted as a precisely determined voltage with respect to the stored voltage. The other of the offset voltages is generated by inverting the first, adjusted voltage, such that the two offset voltages are offset by equal values in opposite directions.

Abstract: The present invention relates to an improved reciprocating jaw type hemostatic clip applier or ligator. The improved apparatus is provided with an improved camming mechanism which interfaces with the jaws to cam the jaws closed and which is designed to maintain its alignment with respect to the jaws to prevent misalignment of the jaws during closure and malformation of clips. The improved apparatus is also provided with a lockout mechanism which prevents the jaws from being closed once the last clip has been formed and released from the instrument.

Abstract: A remote monitoring system for a multi-position loading dock facility having a vehicle restraint lock at each loading/unloading position is disclosed. The monitoring system includes a data processor, and a keyboard and monitor associated therewith, which may be coupled to lock sensing switches and other signalling devices at each loading/unloading position. The data processor, supplied with the developed signals corresponding to the condition of a truck at each loading/unloading position, is operable to continually process these signals to allow display and recording of a plurality of types of data.

Abstract: A method of machining a workpiece, which is rotatable about a first axis, by a tool pivotable about a second axis parallel to the first axis and drivable about a third axis perpendicular to the second axis. To allow the circumference of the workpiece to be machined off-center without the necessity of moving the first or the second axis transversely to the plane defined by these two axes, the workpiece and the tool are rotated or pivoted about the first .[.or.]. .Iadd.and .Iaddend.second .[.axis.]. .Iadd.axes.Iaddend., respectively, at the same time, in the same direction and at the same angular velocity and, simultaneously, the second axis is displaced transversely to the first axis at such a velocity that the equation X.sup.2 =Y.sup.2 +A.sup.