Abstract: A thermal printer has a tension roller which rotates at a peripheral speed higher than that of a platen roller. A recording paper after a thermal transfer of an ink thereto is tensed by the tension roller so that separation of the transferred ink from an ink sheet is conducted at a constant separation angle, thus ensuring high uniformity of the printing quality.

Abstract: A fuel injection pump of the type wherein the fuel injection timing is controlled by a timer and a solenoid-operated timing control valve. The timer has a high-pressure chamber and a low-pressure chamber which are defined at both sides, respectively, of a timer piston. The high-pressure chamber communicates with a high-pressure groove formed in the timing control valve through a passage. The low-pressure chamber communicates with the suction side of a feed pump through a low-pressure passage and also communicates with a low-pressure hole formed in the timing control valve through a passage. The timer piston is not provided with a passage mechanism which provides communication between a pump chamber and the high-pressure chamber. The pump chamber communicates directly with the high-pressure groove in the timing control valve through a fixed orifice disposed in the wall of the pump housing and a passage leading to the orifice.

Abstract: A nuclear excitation laser type intra-reactor neutron flux measuring system of this invention is comprised of a laser oscillator filled with a nuclear exciting gas such as .sup.3 He, KrF or XeF, mounted on the tip of a control rod. The nuclear exciting gas is made into a plasma by the neutrons or the fragments of fissioned nuclei when the tip is positioned in the reactor core by raising the control rod. Since the nuclear exciting gas made into a plasma itself generates a laser beam or amplifies a laser beam projected from the outside, the behavior of neutrons can be monitored in detail after guiding this light response to the light processing system located outside, distinguishing the energies of neutrons from the spectrum and calculating the density and the flux of the neutron in each energy. Furthermore, the detecting sensitivity can be enhanced by forming the responsive membrane made of U.sub.3 O.sub.8 and so on, on the laser oscillator.

Abstract: The present invention discloses a suitable mounting of a wafer scale LSI (wafer scale integration) (WSI) in which a slit formed in a wafer is fit to a connector, a U-shaped reinforcing rubber member is disposed at the circumferential edge of the wafer, or a flexible adhesive is used for bonding a substrate formed with through-holes and a wafer, to provide a WSI mounting structure of high integration degree and high reliability. Furthermore, a method of efficient mounting by conducting the wiring of the wafer and the connection with the external terminal of the chip in one identical production step is disclosed.

Abstract: A sealing device of a delivery valve having a valve holder accommodating a valve body, and a valve seat fitted into an opening of the valve holder. The end portion of the valve holder has an end face thereof formed with an annular radially outer slant face moderately slanting with respect to an open end plane perpendicular to an axis of the valve holder, and an annular radially inner vertical face extending continuously from the annular radially outer slant face along a plane perpendicular to the open end plane, thereby ensuring positive sealing between the valve holder and the valve seat.

Abstract: A semiconductor memory includes a memory array which outputs storage data, at least one data unit at a time, each data unit having a plurality of bits including a parity bit, a parity check circuit for performing a parity check on storage data, at least one data unit at a time, input for both to and output from the memory array, and an external terminal for outputting the result of the parity check.

Abstract: A pressure equalizer valve device incorporated in a fuel delivery valve assembly for use in a fuel injection pump, the fuel delivery valve assembly having a valve chamber and a delivery valve member axially movable in part within the valve chamber, the pressure equalizer valve device including a hollow equalizer valve casing member secured to the delivery valve member and having a valve seat surface portion, an equalizer valve element movable into and out of a position seated on the valve seat surface portion, a spring seat member engaging the equalizer valve element, and a helical compression spring seated at one end on the spring seat member and at the other within the delivery valve member, wherein the equalizer valve element, the spring seat member and the spring are all accommodated within the equalizer valve casing member.

Abstract: A multiple purpose instantaneous gas water heater comprises a combination of a larger combustion capacity type first burner with a smaller combustion capacity type second burner. Each of the burners can be controlled by a proportional combustion control method and/or an intermittent combustion control method. It is possible to combine these functions within a microcomputer system so as to use each or both burners selectively, or both together, so that it is possible to select water from a wide range of hot water temperatures or to select a target temperature.

Abstract: A multiple purpose instantaneous gas water heater comprises a combination of a larger combustion capacity type first burner with a smaller combustion capacity type second burner. Each of the burners can be controlled by a proportional combustion control method and/or an intermittent combustion control method. It is possible to combine these functions within a microcomputer system so as to use each or both burners selectively, or both together, so that it is possible to select water from a wide range of hot water temperatures or to select a target temperature.

Abstract: Single-sheet printer paper comprises a sheet of paper having a middle portion having the same dimensions as a standard-size sheet of paper, upper and lower holding portions which are integrally formed on the upper and lower edges of the middle portion, and guide lines for cutting which are formed along the borders between the middle portion and the holding portions. In a preferred embodiment, the guide lines are in the form of perforations. A method for using this paper comprises printing over the entire length of the middle portion with a printer and removing the holding portions by shearing along the guide lines so as to obtain a sheet having the same dimensions as a standard-size sheet and which is printed on over its entire length.

Abstract: A fuel injection pump includes a reciprocating plunger and a control sleeve slidably fitted over the plunger, the prestroke of which is varied by vertical movement of the control sleeve. The control sleeve is provided at its upper end with a fuel discharge groove, through which the fuel contained in a fuel-pressurizing chamber is discharged after the end of injection. The control sleeve also has to pressure escape passage. A variation in the effective stroke allows the pressure of fuel contained in the fuel-pressurizing chamber to be selectively regulated by the pressure escape passage, thereby controlling the pressure of fuel to be injected.

Abstract: A pulse width control circuit for providing a control signal to adjust variations of electrical characteristics among a plurality of printing elements has an up/down counter and a plurality of control signal generating circuits. The up/down counter counts the number of pulses of a clock signal and delivers the counted value. The control signal generating circuit compares the counted values from the up/down counter with set values corresponding to conduction time periods of the currents used for driving light emitting diodes, and generates a plurality of control pulse signals having pulse widths whose central positions thereof are in accord with each other.

Abstract: In a fuel injection system for an internal combustion engine, a control lever shaft interlocked with a governor spring is supported by a pump housing of a fuel injection pump with one and the other ends respectively located interiorly and exteriorly of the pump housing. A control lever for controlling the fuel injection amount is fixedly mounted on the other end of the control lever shaft. A cancel lever connected to an accelerator pedal through an accelerator rod is freely fitted on the other end of the control lever shaft. The control lever and the cancel lever are disposed to abut against each other on a leading side of the cancel lever with reference to the angular movement thereof in a fuel decreasing direction. A cancel spring is connected between the control lever and the cancel lever to allow them to be angularly moved together. A dash pot for restricting the speed of movement of the control lever in a fuel increasing direction is arranged exteriorly of the pump housing.

Abstract: A fuel injection pump including an improved plunger pre-stroke adjusting mechanism which comprises a control sleeve coupled with a control rod through a coupling shaft. The coupling shaft is rotatably mounted in an aperture defined in the control rod and has an engagement portion held in engagement with the control sleeve. The engagement portion is disposed in eccentric relation to a body of the coupling shaft for translating rotating motion of the control rod into axial movement of the control sleeve, thereby adjusting the pre-stroke of a plunger. The pre-stroke adjusting mechanism thus constructed is compact and simple in construction and hence can easily be assembled.

Abstract: A distribution type fuel injection pump in which a control sleeve is provided for changing a time of opening a cut off port which is shiftable on a plunger reciprocating synchronously with rotation, and an injection quantity is controlled by adjusting a position of the control sleeve by a tension lever that receives an operation of a governor spring and a centrifugal force governing member, the improved pump in which a piston connected to a lever for determining a maximum shifting position of the tension lever is disposed in a sliding hole, and this piston is energized by a return spring, and the return spring side of this piston is made to be a low pressure chamber and an opposite return spring side is made to be a high pressure chamber. A servo valve is provided in the piston and this servo valve is displaced so as to balance the fuel pressure in the pump chamber and the pressing force of the servo spring and the fuel pressure in the high pressure chamber is controlled.

Abstract: A diaphragm (38) controls a position of a control sleeve (14) relative to a plunger or piston (16) in response to a pressure differential between a pressure chamber (42) and a control chamber (46) which are defined by the diaphragm (38). The pressure chamber (42) is communicated to an atmospheric pressure or a boost pressure while the control chamber (46) is selectively communicated to a source of vacuum supply through a first check valve (62) and to the atmosphere through a second check valve (58). The first and second check valves open when the pressure inside the control chamber is higher and lower than a reference level, respectively, thereby maintaining the pressure within the control chamber (46) substantially at the reference level to promote an accurate control of the control sleeve (14).

Abstract: Residual pressure control means corresponding in number to the cylinders of the engine are connected between the delivery valves of the fuel injection pump and the respective injection pipes. The residual pressure control means are interconnected in an arrangement corresponding to the sequence of fuel injection through the delivery valves. Each of the control means is adapted to transfer the injecting fuel pressure present therein on its injection nozzle side to its next control means when the same injecting fuel pressure exceeds the injection fuel pressure present therein on its injection pump side at the termination of each fuel injection, to obtain increased injection pressure of fuel injected by an injection nozzle associated with the above next control means during the immediately following fuel injection.

Abstract: A servo valve is arranged within a timer piston for displacement in response to fuel pressure variable as a function of the engine rpm. When there occurs a change in the fuel pressure, the servo valve is automatically displaced relative to the timer piston to open a passageway for supplying the above fuel pressure to a hydraulic oil chamber defined at one end of the timer piston to cause displacement of the timer piston for control of injection timing. When there is no change in the fuel pressure, the servo valve is positioned to close the passageway to hold the timer piston stationary. Further, means may be provided for adjusting the setting load of a servo spring urging the valve body of the servo valve against the above fuel pressure.

Abstract: In a video signal play-back circuit connected so that a play-back signal from a magnetic head may be applied to an amplifier circuit through a resonance circuit which consists of an inductance element and a capacitance element, a resistor for adjusting the quality factor Q of the resonance circuit is connected between one terminal of the resonance circuit and one output terminal of the amplifier circuit, thereby to reduce thermal noises which develop from the Q adjusting resistor.

Abstract: In a video signal play-back circuit connected so that a play-back signal from a magnetic head may be applied to an amplifier circuit through a resonance circuit which consists of an inductance element and a capacitance element, a resistor for adjusting the quality factor Q of the resonance circuit is connected between one terminal of the resonance circuit and one output terminal of the amplifier circuit, thereby to reduce thermal noises which develop from the Q adjusting resistor.