Abstract: Apparatus for controlling the number of enabled cylinders of an internal combustion engine during deceleration comprises a plurality of comparators responsive to a signal indicative of the engine rotational speed upon deceleration of the engine. The threshold voltages of the comparators are arranged stepwise so that each comparator produces an output signal when the engine speed falls below each threshold voltage. The output signals of the comparators are supplied to logic circuits to control a plurality of switches via which the fuel injection control pulse signal is respectively applied to fuel injection valves to increase in a stepwise fashion the number of enabled cylinders from the fuel cut-off state thereby preventing occurrence of impacts or shocks in the transition period of reactivation of the cylinders upon deceleration.

Abstract: The probe comprises two inductance windings mounted in opposition and conted to an a.c. generator, a measurement winding placed at right angles between the two inductance windings and a measurement voltage detector. A compensation winding is placed coaxially and symmetrically with the measurement winding in relation to the axis of the inductance windings, thus permitting enhanced sensitivity of the probe and a directional effect. Potential applications include continuous recording of magnetic susceptibility along a vertical borehole wall and ore sorting on a conveyor belt.

Abstract: A wire wheel center to be affixed to the drop center of a tubeless tire rim comprising a hub concentrically located within a felly and connected thereto by wire spokes. A plurality of portions of said felly are arranged axially and seriatim, with the axial innermost of said portions being affixed to said rim and the middle and outermost of said portions receiving the outer ends of said spokes.

Abstract: In a surgical glove package, the surgical glove is contained in a cylindrical ring with the cuff of the glove stretched around the ring to open the cuff of the glove. A bag also contained within the ring has its mouth sealed around said ring and encloses the outer surface of the glove to protect the sterility thereof. To don the glove, the hand is inserted through the ring into the glove and then the cuff of the glove is released from the ring. The ring is then removed from the hand in a manner to turn the bag inside out as the ring passes over the hand so that the bag remains between the ring and the hand as the ring is passing over the hand.

Abstract: An exhaust gas recirculation system for an internal combustion engine for automotive use, wherein a diaphragm-operated recirculation rate control valve adapted to control the exhaust gas recirculation rate depending upon the relationship between the pressure of the exhaust gases passed through an orifice and a vacuum developed in the mixture supply system of the engine is used in combination with a solenoid and diaphragm operated vacuum compensating valve which is not only responsive to the pressure of the exhaust gases passed through the orifice but is controlled by a microcomputer responsive to various operational parameters of the engine so that the vacuum to be developed in the recirculation rate control valve is compensated to be optimum for operating conditions of the engine.

Abstract: The engine crankshaft rotational speed is detected to be compared with stepwise arranged threshold speeds so as to stepwise enable fuel injection valves of respective cylinders during deceleration of the engine. Accordingly, the number of enabled cylinders is increased in a stepwise manner from a fuel cut-off state as the engine rotational speed decreases to prevent engine stall, while occurrence of shocks upon reactivation of cylinders is avoided. The threshold speeds are controlled in accordance with the variation of engine load which may be increased upon operation of auxiliary power consuming units, such as an air conditioner the compressor of which is driven by the engine, for preventing undesirable vibrations of the engine during the stepwise reactivation of the cylinders.

Abstract: A stabilizing arrangement for mine roof support systems of the type in which a series of support units, each including a transverse beam supported at opposite ends by extensible props, are interconnected by extensible struts in a manner to be self-advancing by alternate retraction of support units from a roof supporting condition and extension of the struts to advance such retracted units relative to others of such units which are in an extended roof engaging condition. The connection of each prop to the beam in a given unit is pivotal to allow deflection of the beam and props of a supporting unit from a normal perpendicular relationship under load. The stabilizing means restores the props and beam to a normal perpendicular relationship for advancing movement of each support unit.

Abstract: Disclosed is an interleaved multiple signal separating circuit in which a luminance signal and a chrominance signal are separated by a circuit for adding a composite video input signal including the luminance signal and chrominance signal which is delayed by a predetermined period of time by an ultrasonic solid delay line to the composite video input signal and by a circuit for subtrating the delayed composite video input signal from the composite video input signal. The separating circuit comprises a series circuit of an input transducer of the ultrasonic solid delay line and a voltage division load connected to the input transducer. The input signal is applied to the series circuit. A delay output signal from the output transducer of the ultrasonic solid delay line and a signal across the voltage division load are combined to provide a sum signal and a difference signal thereof.

Abstract: A diaphragm type actuator with a breakage condition detecting function which comprises a diaphragm member partitioning a casing into a first chamber filled with a high pressure and a second chamber exposed to air, and a breakage detecting switch supported by a displaceable partitioning member, such as, bellows, provided on the inner wall of the first chamber so as to define a third chamber filled with a high pressure, whereby if there occurs breakage in the diaphragm, the breakage detecting switch mounted on the bellows moves towards the diaphragm member to become in contact with an actuating rod supported by the diaphragm member to detect the breakage in the diaphragm member.

Abstract: A method and apparatus for contraception wherein an applicator houses a fluid-expansible, hydrophilic, tampon material in its unactivated, compressed state separate from a reservoir of spermicide or medicament. The applicator preferably includes a manually frangible portion of the spermicide reservoir or a fluid communication passage to bring the spermicide into contact with the fluid-expansible tampon material upon command prior to use. After activating by moistening, the spermicide-impregnated, expanded tampon can be readily inserted into a vagina by use of the applicator. Preferably, the tampon is made from a body of purposefully-compressed, memory-retentive, hydrophilic material having a resilience and a high coefficient of expansion when moistened to act as a barrier to the os uteri, to fill the vaginal fornices and absorb ejaculate. Various shapes of the tampon are disclosed, as are methods of making and using the invention.

Abstract: An igniter is disclosed having a heat generator responsive to an ignition signal for igniting powder. comprises a first connector insulatingly supporting a first pair of electrical conductions having their one ends connected across the heat generator, filter means provided in circuit with one of the first electrical conductors for prohibiting passage of any high frequency signal other than the ignition signal, resilient means electrically connecting the first electrical conductors, the resilient means resiliently contacting at least one of the first electrical conductors, a second connector insulatingly supporting a second pair of electrical conductors having their one ends connected across an ignition signal source, and a second connector adapted to engage the first connector so as to bring the second electrical conductors into electrical connection with the respective first electrical conductors and to take the resilient means out of contact with the first electrical conductor.

Abstract: Paraseismic device for a handling hood of a nuclear reactor, comprising an enclosure with a vertical axis connected to a lock communicating with a passage provided in a slab located in the upper part of the reactor.According to the invention the device comprises, mounted between enclosure and lock, an elastic joint permitting the enclosure to perform a gimballing movement around a center located on the vertical axis of the lock, and regulatable tension tie attachment means disposed between the hood and the slab and distributed regularly about the vertical axis, each of said means having an attachment point on the hood disposed in the vicinity of a horizontal plane passing through the center of the ball and socket joint.Application to any power or experimental reactor.

Abstract: A weatherstrip retainer unit and a roof construction using the weatherstrip retainer unit are disclosed. The weatherstrip retainer unit comprises a retainer section and an integral molding section. The roof construction is designed to accommodate well to the installation of a roof rack in which a gutter strip has a flange overlying on the inside surface of a downwardly extending roof edge portion of a roof so as to reinforce the latter. The roof rack is placed with each leg engaging the outside surface of the reinforced roof edge. A plurality of generally U-shaped fasteners are used, each having its longer arm fixedly screwed to the roof rack and its shorter arm engaging the flange of the gutter strip.

Abstract: Differential olfactometer comprising two atomizers located on either side of a nasal support and respectively associated with a circuit for supplying olfactory stimuli, a retractable antidiffusion device which hides the atomizers during the intervals between nasal stimulation periods and a breathing detection device associated with an electronic control unit for controlling the hiding of the atomizers, wherein the supply circuit for the atomizers comprises means for permanently supplying the latter.

Abstract: A combination of electron microscope and optical microscope. The optical microscope is juxtaposed adjacent to the electron microscope so that the optical and lens axes of respective microscopes extend in parallel to each other. A specimen transfer mechanism is provided in common to both of the electron microscope and the optical microscope for interchangeably positioning a specimen to be observed at respective predetermined positions along the lens axis and the optical axis for alternative observations through the electron microscope and the optical microscope. The specimen transfer means including specimen holding bar adapted to be displaced in two-dimensional direction in a plane extending orthogonally to both of the lens axis and the optical axis thereby to interchangeably position the specimen at the predetermined positions through displacement of the specimen holding bar which corresponds to a distance between the lens axis and the optical axis.

Abstract: An apparatus for generating thermal and electrical energy includes an internal combustion engine connected to and adapted to drive a generator for providing electrical power and a brake for generating thermal energy. In one embodiment, a heat carrier flows through appropriate conduits for absorbing heat energy from the brake, from the combustion chamber of the engine, and from the engine exhaust gases and delivers the heat energy to a end-use heat exchanger, for example, a room or space heater. In a second embodiment, the engine exhaust gas flow is used to drive a gas turbine that, in turn, drives a compressor in a thermal cycle to provide additional heat transfer capability.

Abstract: An improved optical system is disclosed for rapid, accurate spectral analysis of the reflectivity or transmissivity of samples. A concave holographic diffraction grating oscillated at high speed is utilized to provide a rapid scanning of monochromatic light through a spectrum of wavelengths. The grating is positively driven at very high speed. The rapid scan by the grating enables the reduction of noise error by averaging over a large number of cycles. It also reduces the measurement time and thus prevents sample heating by excessive exposure to light energy. A filter wheel having opaque segments is rotated in the optical path and is synchronous with the grating. The filter wheel is divided into two arcuate segments separated by the opaque segments arranged approximately 180 degrees apart. One arcuate segment of the wheel transmits only first order light. The other arcuate segment transmits only second order light.

Abstract: An A.C. voltage picked up from the alternator driven by an internal combustion engine is converted into a pulse train signal so that the number of the pulses is counted for a period of time defined by a reference timing signal produced in synchronization with the rotation of the crankshaft of the engine. When the number of the pulses reaches a predetermined value during the period of time, a counter produces an output signal to indicate that the slipping rate of the belt is within a tolerance. On the other hand, when the number of pulses is less than the predetermined number, the counter does not produce an output signal (indicating that the slipping rate is over the tolerance). The output of the counter may be averaged over a plurality of measuring times.

Abstract: An improved grain quality analyzer, for analyzing the percentage concentration of various constituents, e.g. protein and water, in a grain sample, photo-optically measures the change in the optical density of the sample, .DELTA. OD, in a range of characteristic wavelengths and, for protein, in a range of neutral wavelengths and uses these measured values to compute the percentage concentration of the constituents.A grain sample is irradiated with light, the wavelength of which sweeps across the infrared light-spectrum including a range of wavelengths termed characteristic wavelengths, and, for protein, a range of wavelengths termed neutral wavelengths.

Abstract: A traction apparatus for medical purposes, wherein an adjustable traction generated by an electromotor is transmitted to the body of a patient by means of a drawing cable. The traction appearing in the drawing cable is continuously measured and compared with the selected traction magnitude, and the drawing cable is wound or unwound by the electromotor in dependence on the difference established by the comparison until this difference has at least approximately been reduced to zero. Preferably, an intermittent traction is exerted, in such manner that holding periods in which the full traction is applied are interrupted by rest periods, in which an adjustable rest force different from zero is exerted. The traction appearing in the drawing cable may be measured by passing the cable over a shaft on which a flexional load is exerted by the traction and by arranging strain gauges on said shaft.