Abstract: A battery electrode is made by applying a wet active material paste to a porous, compressible, fibrous plaque, forcing the paste into the plaque pore volume, and sizing the loaded plaque according to the relationship:T=[M/(GS)]+[W/D],where T is sized thickness, M is the amount of active material solids loading applied to give a required capacity to the loaded plaque, G is the specific gravity of the active material, S is the fraction solids of the active material, W is the unit plaque weight, and D is the density of the plaque fibers.

Abstract: A phase detecting circuit for use in a phase-locked loop is provided with a pair of bistable circuits such as type D flip-flops. One of the circuits is clocked by a controlled output signal from a voltage controlled oscillator, and reset by an input reference signal. The other of the bistable circuits is clocked by an inverted input reference signal and reset by an inverted output signal from the voltage controlled oscillator. The Q and NOT Q outputs of these bistable circuits are fed to a voltage divider and shifted in magnitude by a fixed amount such that the phase error detection signal is a constant zero when the input reference signal and output signals are in phase.

Abstract: Apparatus is disclosed for laser machining a work piece comprising a laser lens adapted to be releasably mounted to permit cleaning of the lens to remove any debris collected thereon during laser machining. The mounting includes a cylindrical base for defining a path along which the laser beam emitted by the laser source is directed onto the work piece, and a mounting member for mounting the laser lens with respect to the cylindrical base and adapted to be removably mounted on the cylindrical base in a manner whereby the lens is disposed to a certain position with respect to the cylindrical base. To this end, there is included a locking member engaging the cylindrical base and biasing the mounting member and its laser lens to the certain position with respect to the cylindrical base.

Abstract: A plurality of proximity sensors are disposed in a turbine flow guide to measure flow guide-to-turbine blade tip distance at various points around the flow guide. The sensor signals are detected and the peak-to-peak voltage of the detected signals provides an indication of the desired distance measurement. The signals are also monitored and if ambient operating conditions causes the signals to exceed predetermined positive or negative thresholds, corrective signals are generated so as to bring the detected signal back into an acceptable range.A proximity sensor is also provided to measure axial movement of the rotor to which the blades are attached so that the other sensor signals can be modified as a function of the measured axial position.

Abstract: A programmable controller including coil diameter calculator and strip speed derivation and inertia compensation is associated with a reel system for the generation in normalized digital form of the coil diameter of the reel instantaneously to allow initial calibration between successive coil winding and unwinding operations and automatic generation of a current reference for reel motor drive control.

Abstract: The present invention is directed to an assembly-heat sink for semiconductor fusions. The fusions are disposed within the assembly-heat sink between cylindrical metal members which both cool the fusions and facilitate making electrical contact to the fusions. Top and bottom members of the assembly-heat sink, which entirely enclose the cylindrical members and the fusions are comprised entirely of metal permitting the assembly-heat sink to be cooled from three sides. The fusions are electrically insulated from the top and bottom members of the assembly-heat sink.

Abstract: The present invention is directed to a thyristor self-protected against overvoltage by the avalanche mechanism, the protection resulting from a well cut in the top surface of the thyristor and extending through one base region of the thyristor and forming two regions of opposite conductivity type at the bottom of said well, and to the process for making the thyristor.

Abstract: Disclosed is an air motor/fan circulator system for circulating air around a fuel cell power plant circuit. The system requires no steam, gas, or electrical penetrations into the fuel cell power plant circuit and further meets the requirements of being able to circulate in excess of one million pounds-mass per hour around the circuit through a pressure difference of about one pound per square inch. The system is suitable for use under fuel cell power plant conditions: a system pressure of several atmospheres and a system temperature of several hundred degrees.

Abstract: A hermetic refrigerant compressor having an electric motor and compressor assembly in a hermetic shell is cooled by oil which is first cooled in an external cooler 18 and is then delivered through the shell to the top of the motor rotor 24 where most of it is flung radially outwardly within the confined space provided by the cap 50 which channels the flow of most of the oil around the top of the stator 26 and then out to a multiplicity of holes 52 to flow down to the sump and provide further cooling of the motor and compressor. Part of the oil descends internally of the motor to the annular chamber 58 to provide oil cooling of the lower part of the motor, with this oil exiting through vent hole 62 also to the sump. Suction gas with entrained oil and liquid refrigerant therein is delivered to an oil separator 68 from which the suction gas passes by a confined path in pipe 66 to the suction plenum 64 and the separated oil drops from the separator to the sump.

Abstract: A diagnostic system wherein a central diagnostic center receives sensor data relative to the operating condition of a plurality of remote plants. Each plant records just certain sensor signals and transmits them at respective prescheduled transmisssion times. If certain activation limits are exceeded, a data link with the diagnostic center is immediately established so that the data may be transmitted ahead of its normally scheduled transmission time in order that an immediate diagnostic analysis be made on the plant. A communication link between the plant and diagnostic center is kept open for a predetermined period of time in which more data may be sent from the plant to the diagnostic center, and results and instructions, sent from the diagnostic center back to the plant. Such instructions may include the changing of certain parameters in the examination of the sensor signals.

Abstract: The surface of a metal article which is exposed to the atmosphere and abrasion during normal use of the article is protected from scratches and/or corrosion during such use by a thin transparent abrasion-resistant film of an inert non-metallic material such as SiO.sub.2, SiC, Si.sub.3 N.sub.4, TiO.sub.2, MgO, Al.sub.2 O.sub.3, Ta.sub.2 O.sub.5, Nb.sub.2 O.sub.5, GeO.sub.2, spinel and selected colorless glass compositions. The protective film is preferably deposited by RF-sputtering techniques and undesirable coloration of the article by optical interference effects from incident light rays is avoided by properly correlating the film thickness with the refractive index of the particular material used to form the film. The invention permits the use of thinner gold plating on such items as articles of expensive jewelry and bracelets and cases for fine wristwatches without detracting from the quality, durability or appearance of the merchandise.

Abstract: A mechanical interlock for a pair of vertically mounted circuit breakers, each circuit breaker having a trip latch mechanism for opening the circuit breaker and a mechanical contact position indicator for indicating the open or closed position of the circuit breaker with the interlock extending between the trip latch mechanism and contact position indicator mechanism of each circuit breaker. The interlock allowing only one circuit breaker to be closed at any time.

Abstract: A hollow, airfoil shaped stator vane 10 is provided in its trailing edge portion with staggered rows of pin fins 20, 22 and 24 and with longitudinal ribs 26 which provide the required stiffness for the thin wall design of the vane, the ribs being provided with protuberances 36 in those locations where the turbulence inducing pin fins are displaced by the presence of the ribs.

Abstract: The present invention is directed to a thyristor self-protected against overvoltage by the avalanche mechanism, the protection resulting from a laser scribed ring shaped groove cut in the top surface of the thyristor and extending into one base region of the thyristor whereby the forward blocking junction is contoured toward the reverse blocking junction under the ring shaped groove, and to the process for making the thyristor.

Abstract: A tool (30) for facilitating insertion or removal of a C-shaped spring clip in a burnable poison rod, or the like, includes an outer member (38) secured to a front handle (32) and an inner member (40) extending through the outer member and the front handle which is connected to a coaxial rear handle (34). The handles (32, 34) are interconnected for relative rotation by means of a set screw (64) and circumferential groove (56). The distal ends of the inner and outer members (38, 40) are notched to receive the spring clip and engage it for compression. Provided between the handles (32, 34) is a locking and release assembly (42) and an adjustable positioning ring (58) by which the spring clip can be compressed, locked in compressed condition for insertion, and then released in the desired position before withdrawing the tool.

Abstract: A dielectric optical polarizer which is operable at high peak and average power, with greater than 95 percent transmission of the desired P polarized radiation, and also greater than 95 percent reflectance of the S polarized radiation. The polarizer comprises a radiation transmissive substrate with a first dielectric layer disposed on at least one side of the substrate. The first dielectric layer has an index of refraction higher than the substrate. A second dielectric layer of low index of refraction material is disposed atop the first dielectric layer. A third dielectric layer of the same high index of refraction material as the first layer, is disposed atop the second layer. Each of the dielectric layers is one quarter wavelength thick at the operating wavelength. The dielectric polarizer operates at a very high Brewster angle associated with the dielectric layers rather than that of the substrate.

Abstract: A coherent phase shift keyed demodulator provides demodulation of a baseband data message through the use of a reference vector signal generator which employs an intermediate reference vector generated from the phase of an incoming carrier signal which, under certain conditions, is reversed in phase prior to being combined with a previous value of the reference vector to generate an updated reference vector signal. The demodulator incorporates a polarity sampler, an image signal generator and a zero crossing detector associated with a phase angle vector generator. A summation vector generator receives a signal from the phase angle vector generator and, in turn, provides signals to a phase detector and a reference vector generator. The demodulator also includes apparatus to perform concurrent carrier detection and bit synchronization operations.

Abstract: An elevator system which generates a landing speed pattern having the advantages of both digital and analog based patterns, without the disadvantages of either, by generating a landing speed pattern which is a digital, i.e., absolute position, and analog composite. The absolute position of the elevator car in the landing zone of a target floor is detected at only a few points on each side of floor level, and an absolute pattern value is stored in memory for each such point. The stored speed pattern values are retrieved as the car arrives at each absolute position point and used for establishing the landing speed pattern, with the last such value being modified to provide a continuous pattern which smoothly blends with the next stored speed pattern value as the elevator car reaches the next absolute position point.

Abstract: A programmed microprocessor motor control apparatus is provided for a vehicle propulsion motor that is responsive to an input control device to determine the acceleration rate and a predetermined motor voltage curve of the propulsion motor.

Abstract: A method of constructing a mitered, unwelded architrave. Two right angle frames or brackets are constructed, each having first and second legs disposed 90.degree. relative to one another. First and second post sections and a head section are formed with elongated recesses, and appropriate ends mitered. The post and head sections are telescoped on to the two brackets and secured thereto, such that the frames support the architrave at each right angle corner, maintaining tight, butted, aligned miter joints without welding.