Abstract: A system is disclosed for testing a plurality of items of test data, the system comprising memory means for storing a plurality of items of stored data and, in response to an input signal identifying one of the items of stored data, producing an output signal dependent on that item of stored data. The input signal is dependent on one of the items of test data and on a feedback signal comprising at least part of the output signal produced on testing a previous item of test data, at least part of the output signal providing an indication of the result of the testing.

Abstract: In a device for rejecting the image signal of a signal converted to a predetermined intermediate frequency, a local oscillator supplies a local signal at a frequency chosen according to the frequency of the signal and the intermediate frequency. A first phase-shifter has two passive phase-shifter cells including resistive and capacitive components and respectively connected to the output of the oscillator to supply two mixer signals in phase quadrature. Two mixers receive an input signal containing a signal and its image signal and a respective mixer signal and supply two intermediate signals at the intermediate frequency. A second phase-shifter comprises two passive phase-shifter cells comprising resistive and capacitive components and respectively connected to the outputs of the two mixers to introduce a further phase quadrature relationship between the two intermediate signals.

Abstract: An easily modifiable ride is provided with a track and a car for carrying at least one passenger along the track. The track creates changes of movement of the car to thereby produce G-forces to the passenger. A plurality of detectors are provided for detecting movements of the car. At least one display device is used for producing a series of images to create a displayed scenario of an amusement ride. There is also provided signal generators responsive to the detectors for synchronizing between the images and the movements of the car.

Abstract: A method and apparatus of magnetic force control for a scanning probe, wherein a first magnetic source having a magnetic moment is provided on the scanning probe and a second magnetic source is disposed external to the scanning probe to apply a magnetic field in a direction other than parallel, and preferably perpendicular, to the orientation of the magnetic moment, from the second magnetic source to the first magnetic source to produce a torque related to the amplitude of the applied magnetic field acting on the probe. By controlling the amplitude of the applied magnetic field, the deflection of the scanning probe is maintained constant during scanning by the scanning probe. An output signal related to the amplitude of the magnetic field applied by the second magnetic source is produced and is indicative of a surface force applied to the probe. The invention can also be used to apply large forces during scanning for applications such as nanolithography or elasticity mapping.

Abstract: A two part pressure unloading delivery valve for a fuel injection pump comprises an annular valve member within which is slidable a plunger. The valve member is biased into engagement with a valve seat by means of a spring and is lifted from the seat by fuel under pressure supplied by the pump. The spring biases the plunger in the direction away from the seat and following closure of the valve member the plunger is moved in the direction towards the seat to allow relief of fuel under pressure from the pipeline connecting the valve with a fuel injection nozzle. After a predetermined movement of the plunger against the spring, damping means in part defined by a piston on the plunger, acts to damp the further movement of the plunger.

Abstract: A process for the preparation of pyrazolone derivatives represented by the general formula ##STR1## wherein R is a hydrogen atom, an alkyl group, an allyl group, an aryl group or an aralkyl group, and R.sub.1 and R.sub.2 are, respectively, a hydrogen atom, an alkyl group or a phenyl group which may have a substituent, comprising reacting a 2,3-dihalocarboxylic acid derivative or a 2-haloacrylic acid derivative with a hydrazine derivative. A pyrazolone or 1-substituted-3-pyrazolones useful as intermediate starting materials for the synthesis of agricultural chemicals, medicine and chemical compounds can be easily and cheaply prepared from widely used industrial starting materials.

Abstract: Method for identifying and isolating variant T4 DNA polymerase by isolating and selecting for T4 strains having variant DNA polymerase defective in DNA replication, and at least one additional mutation which corrects or compensates for said defect in DNA replication; identifying the additional mutation(s) and introducing the mutation(s) into T4 phage or T4 DNA polymerase expression vectors.

Abstract: To allow a displacement sensor to operate independently of changes in the excitation signal to the transducer, a demodulating circuit is provided wherein comparison is made between the excitation signal and a reference signal, the comparison is used to adjust an output generating circuit which generates the output from the transducer. Advantageously, the output generating circuit can provide movement information from output of the transducer which include position, velocity and acceleration.

Abstract: A mass fluid flow controller has a valve which is controlled by a controller rod which is substantially pivotally mounted on a metallic diaphragm which stretches and unstretches with the movement of the rod. The actuation of the rod movement is by the expansion and contraction of an actuator wire which is heated for the expansion and allowed to cool for the contraction. The primary fluid flow path through the controller is straight. A sensor conduit, providing a parallel sensor fluid flow path, is connected in position using metallic sealer members which extend into openings to the primary fluid flow path and which are rounded along the direction through such openings. The pressure drop, along the primary fluid flow path, to create flow through the sensor conduit, is provided by a fluid flow restrictor having a core and having lengths of wire along the core which are squeezed between the core and a tapered fluid flow path wall in the vicinity of the sensor conduit input and output connections.

Abstract: A self-cooling container incorporating a heat exchange unit including a chamber for containing a quantity of a gas, the chamber including an external wall in contact with the beverage to be cooled, actuator means for actuating the heat exchange unit, a liner member disposed concentric and inside the wall of the chamber for facilitating flow of the gas throughout the heat exchange unit, and a means for exhausting the gas from the chamber. The actuator means includes a valve for controlling the release of the gas from the chamber having a valve stem which when reciprocated axially will open and close the valve to allow gas to discharge through the stem. The actuator means also includes a sealer having a plurality of tabs spaced around its outer periphery for preventing the heat exchange unit from coming out of the container. A support member is affixed to the base of the chamber for locking the heat exchange unit in position after it is inserted in the container.

Abstract: The striated muscle of the tongue of an animal (in particular, a mammal) is employed as the target tissue for direct DNA injection of an exogenous polynucleotide sequence encoding a biologically active molecule. The DNA is incorporated into the tongue muscle cells and the polypeptide encoded thereby expressed, resulting in the production of a biologically active molecule. Superior levels of expression of the injected exogenous polynucleotide are achieved relative to injection in other types of cells, in particular other types of muscle cells. Moreover, the striated muscle of the tongue represent an easily accessed anatomic location that has not previously been used for direct DNA injection.

Abstract: A pipe coupling is constructed such that: a pressing member is supported by an inner collar and presses an inserted pipe body in a state in which the pressing member contacts an inclined surface of an outer collar; the inclined surface of the outer collar causes the pressing member to be moved in a radial direction thereof when the pressing member moves toward a deep portion within the pipe coupling, and restricts the movement of the pressing member in the radial direction when the pressing member moves in a direction of an exit; the inner collar is urged toward the exit by an elastic member; and the outer collar is relatively movably coupled to a housing of the pipe coupling. In the case of any type of rigid pipe body, the pipe coupling can be freely and easily connected to and removed from the same.

Abstract: An anti-buckle fitting for a large caliber gun barrel, the fitting being constituted by an envelope that surrounds the barrel at a distance therefrom and of a length that is substantially equal to the outside portion of the barrel, the fitting comprising a front ring fixed near the free end of the barrel and a back ring fixed near the fume extractor of the barrel, and wherein the envelope is in the form of two half-shells assembled together by link means.

Abstract: A stabilizer for chlorine-containing polymers and a process for its preparation. The stabilizer comprises a fat or oil-saponified product composite silicate in the form of hydrophobic particles of a composition containing:siliceous compound particles composed chiefly of amorphous or low-crystalline silicate of a metal of the Group II of periodic table, a metal of the Group IV and/or a metal of the Group V;higher fatty acid salts of a metal of the Group II, a metal of the Group IV and/or a metal of the Group V held in the pores or on the surfaces of said siliceous compound; anda glycerin and/or glycerin derivatives.