Abstract: A semiconductor substrate including a single-crystal mono-crystalline film on an insulating film and methods of fabrication are provided. The insulating film has an opening to expose the single-crystal material to a polycrystalline or amorphous semiconductor layer on the insulating film for growing mono-crystals upon application of heat slightly less than the melting point of the semiconductor and applying an energy beam, such as an electron beam or light beam to the semiconductor film. The semiconductor-insulator-semiconductor provides improved substitutes for Silicon On Sapphire formed by the epitaxial method.

Abstract: An apparatus and method for exercising a horse is provided. The apparatus includes a rectangular tank for holding a pool of water, a vertically adjustable treadmill is lowered into the pool of water so that the effective weight of the horse on the treadmill, may be adjusted. The speed of the treadmill is also adjustable for providing a variable exercise program to control exertion of the horse.

Abstract: A magnetic recording and reproducing head which operates in a perpendicular magnetization mode which records and reproduces information on a magnetic recording medium. The head includes first and second members spaced apart so as to define a gap therebetween through which said medium can travel. The first member includes a magnetic pole of high permeable magnetic thin film having a tip which faces the medium. A first coil is wound around the thin film and the second member includes a second coil. The tip of the thin film faces the second coil. The second member and its second coil and thin film are used for recording whereas the thin film and first coil are used for reproducing.

Abstract: A first ROM is comprised of a transistor matrix. The polycrystalline silicon forming the gates of the transistors of the first ROM and another polycrystalline silicon region are arranged in a matrix, and diodes are formed by PN junctions at the crossing points. Thus, a second ROM is comprised of a diode matrix. The two ROMS are formed in layers on one common plane and each ROM can retain different information, independently of each other.

Abstract: A flexible magnetic disk drive includes interengaging members which necessitate a sequence of operations in use which assure proper disk positioning and avoid damage to the disk and magnetic head. The disk is clamped for rotation between a center pulley and a clutch plate which is compressed by a plate spring. A disk ejection mechanism is provided.

Abstract: A steel for use in a vehicle suspension spring having a good sag-resistance comprising by weight 0.80% carbon, 1.50-2.50% silicon, 0.50-1.50% manganese, a member or members selected from a group consisting of 0.05-0.50% vanadium, 0.05-0.50% niobium and 0.05-0.50% molybdenum, the remainder being iron together with impurities. The steel may further contain a member or members selected from a group consisting of 0.0001-0.01% 0.20-1.00% chromium, and not greater than 0.0008% nitrogen.

Abstract: In a two-fold type tying device formed of synthetic resin, guide portions 4B in the form of a projection are provided at a portion to be contacted by a rocking arm of a tying machine. This tying device is capable of preventing release of the tying device from the rocking arm or bending member upon tying the tying device by means of the tying machine 15, preferably with the aid of the guide portions 4B and guide slots 4C.

Abstract: The printing head for a wire-type dot printer includes a plurality of electromagnetic coils, a wire, a permanent magnet, and a leaf spring. The arrangement of the wire and the leaf spring allows the print head to operate stably during high-speed operation. The wire dot print head has a head body in which the wire drive units are assembled so there is no problem with magnetic interference between the electromagnets. In addition, the wire dot print head may be comprised of a multiplicity of wires, and may be of a double-deck construction type which renders the unit more compact. This arrangement allows the construction of a multiwire high speed print head which can be easily assembled from simple parts.

Abstract: A multi-ply garment component formed of two creased outer plies of fabric having a thermoplastic resin deposited on the inner surfaces and an improved method of fabricating the component are provided. The edges of the fabric with resin are folded in over an interlining piece having a dimension corresponding substantially to the final component and subjected to heat and pressure to fuse the fabric to the shape of the component. A complimentary creased fabric/interlining intermediate or creased fabric is placed in back-to-back alignment and edge stitched along the folded edges to form the component.

Abstract: A printing device for use in a wire dot printer having a plurality of printing wires. The printing device includes a frame and a carriage slideably supported on the frame for lateral translation thereacross. A print head is supported on the carriage and includes a nose portion which supports the plurality of printing wires. First and second holders are disposed on the carriage so that the nose portion is intermediate the first and second holders. A ribbon mask constructed from a resilient material is disposed on the nose portion. The ribbon mask is held in position by engagement with the first and second holders. The carriage includes a projection extending towards the ribbon mask. The ribbon mask is further supported by the projection. In addition, the ribbon mask may include a plurality of projections which extend towards and abut against the nose portion to keep the surface of the ribbon mask spaced from the nose portion to permit travel of an ink ribbon therebetween.

Abstract: A flyback modulated switching power amplifier is described. The amplifier employs a waveform generator to produce an input signal and power switches capable of controlled conduction in one direction and uncontrolled conduction in the other. An inductor is coupled to the power source through the power switches so that flyback current can flow through a switch in its uncontrolled direction from the inductor when the switch is turned off. A conduction feedback circuit detects conduction by the switches and a comparator detects whether the output is "too high" or "too low" relative to the input signal. A logic control selectively activates the switches to control the output voltage, but not until the last switch to be turned off has stopped all conduction, including flyback conduction.

Abstract: A pressure relief port for relieving the pressure within an enclosure having a wall with first and second sides and a first opening therethrough. The pressure relief port includes a tube having a conduit therethrough sized to fit in the first opening in the wall to extend essentially intermediate the first and second sides of the wall. First and second end caps having respective openings therein are sized to fit on the first and second walls respectively, about the first opening. The tube extends into the first and second end caps. A flexible diaphragm extends substantially across the conduit in the tube for regulating air flow and is displaceable between a first position where the diaphragm substantially closes off the conduit to air flow and a second position where the diaphragm is displaced by air pressure to permit air to flow through the conduit to equalize pressure on opposite sides of the wall.

Abstract: The voltage regulator, entirely of monolithic integrated circuit construction, has an output voltage with a temperature gradient similar to that of the saturation and threshold voltages of liquid crystal elements. Constant current flows through temperature sensitive resistive elements in series with temperature insensitive resistance elements. The output voltage taken across at least a portion of the resistance elements has a voltage/temperature characteristic similar to that of the temperature sensitive elements. Both the level of the output voltage and the temperature gradient of the output voltage are independently controllable and independent of source voltage variations. Buffer circuits may be used between the output of the regulator and load, and sampling techniques are also used to conserve energy by duty cycle operation of higher current circuit elements.

Abstract: N-Benzyloxycarbonyl-L-aspartic acid (Z-Asp) crystals several times larger than those obtained by conventional crystallization are prepared by acidifying an alkaline aqueous solution of a metal salt of Z-Asp at high temperatures of between about 20.degree. to 45.degree. C. The resulting large crystals contain less moisture and less impurities such as sodium chloride, dipeptide and benzyl alcohol, etc. than those crystals obtained at lower temperatures and they are easily processed for preparing aspartame.

Abstract: A multi-action toy vehicle which includes a chassis having first and second rear wheels rotatably supported thereon. The toy vehicle includes first and second arms pivotally supported on the chassis proximate the rear wheels, which each include a projection. A weighted lever is movably supported on the chassis, which selectively changes the balance of the toy vehicle depending on the position thereof. The lever also selectively contacts the first and second arms to cause the first and second projections to selectively extend through the chassis. The projections will contact the surface on which the toy vehicle is riding to cause the toy vehicle to perform multiple actions.

Abstract: The sound generator applies an envelope to the note signal. Current to the sound producing element is controlled by a series transistor whose base is driven with a signal having a frequency corresponding to the musical note. The driving voltage applied to the base has a voltage amplitude corresponding to the voltage stored in a capacitor connected through a resistor and discharging through said resistor and the base of the transistor controlling the current to the sound producer.

Abstract: A variable frequency oscillator circuit adapted for stabilization of its free-running frequency comprises a first signal synthesizing circuit, first voltage-controlled oscillator, a phase-locked loop and reference signal generator, the phase-locked loop consisting of a second signal synthesizing circuit, second voltage-controlled oscillator, phase comparator and low-pass filter. The first and second signal synthesizing circuits have the same characteristics, and the first and second voltage-controlled oscillators have the same characteristics. The reference signal and output of the second voltage-controlled oscillator are input to the phase comparator. The comparator output is applied to the first and second signal synthesizing circuits. An external signal is applied to the first signal synthesizing circuit, and the output of the first voltage-controlled oscillator acts as the output of the variable frequency oscillator circuit.The principles are applied to reading data pulses from a floppy disk.