Abstract: A headstock cooling system for a machine tool comprising a base having a top, bottom and a first fluid passageway extending centrally therethrough from the top to the bottom. A bed is mounted on the base top and provided with a second fluid passageway extending coaxially from the first fluid passageway and in fluid communication therewith. A headstock is mounted on the bed and is positioned coaxial with and directly above the second fluid passageway and includes means for communication with the second fluid passageway for directing a cooling fluid from the second fluid passageway out of the headstock thereby cooling the headstock over at least a substantial portion of the headstock.

Abstract: Curable compositions contain a low molecular weight polyphenylene ether and a polyepoxide composition containing brominated and non-brominated bisphenol polyglycidyl ethers, in combination with further components including specific catalysts. Said compositions are preferably free from hardeners for epoxy resins. They may be used in the preparation of bonding sheets which are useful in the manufacture of multilayer printed circuit assemblies and which have excellent physical and electrical properties.

Abstract: Shown, herein, is a method of allowing use of small, low-power communication systems within the service coverage area of larger trunked systems. The small, low-power systems are constructed to reuse at least some of the inbound frequencies of communication resources, also used by the larger system. The large system measures signal strength values of large cell communication units and transfers such values to the small systems. A small system also measures the signal strength and compares the measured and transferred values with thresholds and when the thresholds are exceeded, reuses the communication resources under a TDM format within the small system.

Abstract: An improved reusable blister package is provided which consists of a base member, a top member and a label sheet. The top member mateably engages the opening of the base member. The label sheet seals the package shut after manufacture and prior to purchase. The package is opened by pulling the label sheet and the top member out and away from the base member thereby tearing the label sheet along the upper and side portions of the top member. The label sheet located along the lower end of the top member remains untorn and provides a hinge mechanism connecting the lower end of the top member to the lower end of peripheral flange of the base member. The improved package provides an outwardly facing label sheet that is entirely available for graphic presentations of logos and other product indicia.

Abstract: A travelling-wave Mach-Zehnder electro-optic modulator (10) for operation at microwave electrical input signal frequencies has an electrical modulation electrode structure (26,34) which constitutes a coplanar waveguide (24). An electrical input signal connector (80) is coupled to a microstrip line (38) having an output impedance which is significantly different from the input impedance of the waveguide (24). A Chebyshev impedance matching transformer (50) couples the input signal from the input connector (80) to the modulation electrode structure (26,34), while matching the output impedance of the microstrip line (38) to the input impedance of the waveguide (24) to maximize the coupling efficiency and minimize return loss. The modulatoGOVERNMENT RIGHTSThis invention was made with Government support under Contract No. N66604-87-C-1126 awarded by the Department of the Navy. The Government has certain rights in this invention.

Abstract: A mobile lighting system includes a self-powered mobile base that can be driven long distances and maneuvered in tight locations. An articulateable boom is mounted on the base and has multiple degrees of freedom of movement. A light array is attached to the end of the boom and has additional degrees of freedom of movement. One or more fixtures are mounted on the end of the boom and also have several degrees of freedom of movement, as well as having structure to vary the beam pattern output from each fixture. The system contains power generating means as well as all structure to operate the lights and the boom. Additional features which facilitate the efficient and advantageous provision of the mobile lighting system are also disclosed.

Abstract: A rate-responsive pacemaker employing a rate control parameter of respiratory minute volume, derived over a unipolar lead. The pacemaker performs the minute volume measurement by periodically applying a measuring current between the lead and a reference point on the pacemaker case. This measuring current has frequency components in a range from approximately 10 kilohertz to 1000 megahertz. Application of this measuring current allows the pacemaker to detect the voltage which arises from the applied current and, from the detected voltage, to measure the patient's spatial impedance. Spatial impedance and minute volume vary as a function of the patient's pleural pressure. The pacemaker derives minute volume and rate-responsive pacing rate from the spatial impedance measurement.

Abstract: A dual cigarette carton formed from two substantially identical single cigarette cartons. A label bearing indicia encoded for the automatic pricing of the dual carton is placed across adjacent coplanar walls of the two single cartons. The indicia are positioned such that they are rendered unreadable by automatic equipment when the two single cartons are separated for individual sale. Each single carton further includes indicia encoded for the automatic pricing of a single carton, the indicia being positioned such that they are not readily visible when the single cartons are connected to form a dual carton.

Abstract: A method and apparatus for removing unreacted protein and unreacted antisera from a gel plate during immunofixation electrophoresis. The apparatus includes a pressure plate movable toward and away from a fixed base for exerting a desired force on the electrophoresis plate. A stop member limits the movement of the pressure plate toward the fixed base thus controlling the amount of pressure on the electrophoresis plate.

Abstract: A alkali-soluble dye for a waterfast ink having structural formula as follows: ##STR1## and an ink containing the dye dissolved in water. Printing from the ink is insoluble below pH 6.0; is an intense black at low concentration; and remains black on acid papers. The aqueous inks are stable and exhibit good printhead nozzle maintenance.

Abstract: A metabolic demand rate-responsive cardiac stimulation apparatus and method are disclosed which employ multiple physiological rate control parameters, such as respiratory minute volume, patient motion and cardiac stroke volume. The parameters are derived using a single standard pacing lead or transducer. The apparatus and method perform each physiological measurement by periodically applying a measuring current between two points within the apparatus. This measuring current has frequency components in a range of from approximately 10 kilohertz to 1000 megahertz. Application of this measuring current allows the apparatus to detect the voltage which arises from the applied current and, from the detected voltage, to measure the patient's spatial impedance. For a particular measurement, the apparatus controls which physiological parameter is sensed by regulating the frequency content of the measuring current.

Abstract: A way of allowing small, low-power communication units to reuse trunked system communication resources within the service coverage area of the larger trunked system without experiencing significant interference from the trunked system. The low power units (requestors and targets) avoid interference through spread spectrum transmissions.

Abstract: A laboratory instrument provides a small model reactor which better simulates a back mixed reactor containing a catalyst. The reactor is especially valuable for simulating commercial scale hydrotreating of petroleum resid, coal, and other non-distillable hydrocarbons to obtain some distillable products. An important feature is a magnetically driven pump completely enclosed within the reactor shell of the simulator. All embodiments provide a high temperature and pressure, low liquid to catalyst volume, model reactor where an entire process is carried out within the simulator shell under substantially the conditions prevailing in the full scale reactor.

Abstract: An electronic controller for fluorescent lamps includes a DC to AC converter which supplies high frequency current to the lamps and a preconditioner stage which includes a switched mode power supply connected to accept line power and produce a DC input for the DC to AC converter. The switched mode power supply and the DC to AC converter are synchronized to operate in a fixed phase relationship and/or at the same frequency.

Abstract: The present invention addresses an improved solution to the problem of cutover verification testing where a new digital switching system is to replace an existing switching system that serves at least a group of subscribers via continuous wire lines. It permits a plurality of existing wire lines to be concurrently connected to channel units associated with the new switching system without adversely impacting the existing service and automatic testing under the control of the new system.

Abstract: A linearly moving external part on a multi-cylinder internal combustion engine is contacted with a hand-held rotary encoder, contact tachometer having a hollow handle in which processing circuitry is disposed for converting the rotary encoder output to a waveform signal. This signal, along with a signal responsive to the firing of the number one cylinder, are applied to an engine analyzer processor for display of a single engine cycle of the waveform signal on the CRT oscilloscope of the engine analyzer. The variations in amplitude of the waveform signal correspond to speed variations of the moving part over an engine cycle to give an indication of the relative power contributions of the individual cylinders.

Abstract: The present invention relates to a method of accessing and repairing electrical opens in conducting metal lines on a semiconductor chip or other substrate using laser plating techniques. What has been described is a maskless means of repairing discontinuities in a conductor disposed on the surface of a substrate wherein the surface is locally irradiated to form a reversible carbonaceous layer thereon. This reversible carbonaceous layer acts as a base for electrodeless deposition of a metal to form a bridge across the discontinuity by laser-enhanced exchange plating or other suitable methods. Further, a means of accessing and repairing a discontinuity buried by a cover layer of an insulating or passivating material is described, wherein access to the discontinuity is provided by ablating away the cover layer using a pulsed excimer laser at a first power level.

Abstract: A restoration system is provided for enhancing the reliability of a telecommunications network such that particular traffic which is disrupted by, for example, a faulty link, may be quickly rerouted via an alternate route established "on the fly". In particular, each node and link forming the network is monitored, and in the event that such monitoring detects a faulty link or node then a central controller is notified. The controller is arranged to locate spare capacity and establish an alternate route, in which the continuity of the alternate route is confirmed before the disrupted traffic is transferred thereto.

Abstract: A dual carton formed from two cartons each having at least one pair of opposed top flaps. One carton has an extended top flap which extends over the other carton when the cartons are positioned adjacent one another such that the extended top flap may be secured to the top flaps of the other carton to thereby join the two cartons to form a dual carton. The extended portion of the extended top flap is joined to the remainder of the extended top flap along a weakened line to facilitate later separation of the two joined cartons. The dual carton may be a cigarette carton of dimensions compatible with tax-stamping machinery and temporarily sealed in such a manner as to facilitate the opening and later resealing of the carton for tax-stamping purposes.

Abstract: An integrated software architecture for a highly parallel multiprocessor system having multiple tightly-coupled processors that share a common memory efficiently controls the interface with and execution of programs on such a multiprocessor system. The software architecture combines a symmetrically integrated multithreaded operating system and an integrated parallel user environment. The operating system distributively implements an anarchy-based scheduling model for the scheduling of processes and resources by allowing each processor to access a single image of the operating system stored in the common memory that operates on a common set of operating system shared resources. The user environment provides a common visual representation for a plurality of program development tools that provide compilation, execution and debugging capabilities for multithreaded user programs and assumes parallelism as the standard mode of operation.