Abstract: A method of manufacturing a bearing assembly for the wheels of automobiles, wherein an axle member B is ground by a first step wherein a raceway surface 5 and a cylindrical seat 6 are simultaneously ground, a second step wherein any deviation of the finished raceway diameter from its predetermined size is fed back to a gauge 23 for in-process control which controls the grinding operation on back-face rib surface 21 and shoulder 9, and a third step wherein the back-face rib surface 21 and shoulder 9 are ground simultaneously, while an inner annular member C is ground by a first step wherein a raceway surface 11 is ground, a second step wherein any deviation of the finished raceway diameter from its predetermined size is fed back to a gauge 29 for in-process control which controls the grinding operation on back-face rib surface 21 and front face 10, and a third step wherein the back-face rib surface 21 and front face 10 are ground simultaneously, and the inner annular member B is then fitted on the cylindrical

Abstract: A bearing device for supporting an axle of an automobile comprises an outer member(B) having two races formed on the inner peripheral surface thereof and also having a radial flange integrally formed thereon for connection to a vehicle, an inner shaft member(A) having one end integrally formed with a radial flange for attachment of a wheel and the other end provided with the inner joint member(28, 280) of a constant velocity universal joint and also having two races formed on the outer peripheral surface thereof, and two rows of rolling elements(C) interposed between the races of the outer member and inner shaft member. The device is designed for simple construction and easy machining and assembly.

Abstract: A method and apparatus for compensating for axial deformation of screw shafts due to heat treatment, wherein in the process of hardening of a screw shaft, the screw shaft is twisted to produce permanent twist deformation by an amount corresponding to the pitch error of the screw shaft caused by hardening, so as to correct the pitch error.

Abstract: A fuel injection apparatus of the type in which the degree of opening of a fuel measuring gate disposed in a fuel supply passage is controlled by air flow rate detecting means for detecting the rate of flow of air being sucked into an engine, and the amount of fuel is controlled by a solenoid valve adapted to be opened and closed by signals which detect the operating conditions of the engine, thereby compensating the air-fuel ratio, wherein a second solenoid valve is disposed in parallel with the first-mentioned solenoid valve and adapted to be opened and closed by the above-mentioned signals, so as to correct the basic air-fuel ratio which is set in connection with the air flow rate detecting means and the fuel measuring gate, thereby maintaining the air-fuel ratio at a desired constant value.

Abstract: A fuel injection apparatus of the type which uses a servomechanism utilizing a fluid to control the fluid-communication ratio of a fuel measuring gate disposed in a fuel supply passage. The device is so designed that signals which detect the operating condition of the engine control the amount of fuel to correct the air-fuel ratio so as to provide an ideal air-fuel ratio and that the set value for the servomechanism is controlled so that the output time ratio of fuel lean and rich signals included in the above-mentioned signals may be maintained at a predetermined value, thereby shortening the time required for correcting the air-fuel ratio.

Abstract: Apparatus comprising a vertically movable arm member pivoted at one end about a vertical axis and a chucking head mounted at the other distal end thereof, for engagement with and holding an apertured article, said chucking head being arranged to rotate the chucked article and whereby apertured articles being successively fed to a loading position are subjected to a revolving movement and an upward movement while being transferred to an unloading position via a working position where they are subjected to a desired treatment.

Abstract: A fuel flow rate measuring device comprising a control rod axially movable in proportion to the rate of flow of air flowing through a suction pipe, a ball disposed in a taper bore and adapted to be moved in the taper bore by the control rod, the taper bore and the ball cooperating with each other to define a clearance which is variable in proportion to the rate of flow of the air, and a pressure regulator provided between a fluid inlet and outlet for keeping constant the fluid pressure difference across the clearance defined by the taper bore and ball.

Abstract: A fuel injection device adapted to control the amount of injection by the opening time and opening area of a gate which is disposed in a fuel feed passage and which is controlled in connection with the engine rpm and the amount of suction air. The fuel injection device is characterized in that a choke is disposed between the fuel distributing port of a fuel measuring and distributing mechanism and the valve of an automatic valve type fuel injector, whereby the rate of flow and hence the rise time of pressure pulses applied to the injection valve are controlled to provide an accurate amount of injection.

Abstract: A method of controlling infeed in simultaneously grinding the inner and outer diameters of an annular workpiece with a multiple infeed speed.

Abstract: A one-way clutch comprises rollers disposed respectively in a plurality of wedge-shaped spaces defined between an outer ring provided with a plurality of clutch slopes on its inner peripheral surface and the cylindrical outer peripheral surface of a shaft or inner ring, S-shaped spring members lightly pressing the rollers against the wedge surfaces, and bearing rings installed between the outer ring and the shaft or inner ring and on opposite sides of the rollers.

Abstract: A fuel feeding apparatus for internal combustion engines comprises an area type air flow rate measuring section in which the air flow rate is dependent on the displacement of an air flow rate detecting valve, and a fuel flow rate measuring and distributing section in which a variable orifice defined by a rotor and a stator determines the fuel flow rate proportional to the air flow rate. This apparatus is characterized by the provision of an exhaust gas sensor disposed in the exhaust pipe for the detection of the oxygen concentration of the exhaust gas in order to achieve the complete combustion of fuel in the internal combustion engine, the output signal from the exhaust gas sensor being used to compensate the fuel feeding pressure and a spring force which acts on the pressure difference setting diaphragm of a servo-mechanism.

Abstract: An area type flow rate measuring device comprising an upstream valve and a downstream valve which are disposed in a channel for a fluid, a feedback control mechanism for keeping the pressure difference across the upstream valve constant, the rate of flow of the fluid being measured on the basis of the area of opening of the upstream valve, a pipeline which bypasses the upstream valve, and a mechanism disposed in the bypass pipeline for amplifying the pressure difference by utilizing the flow of the fluid, the arrangement being such that the pressure produced in the mechanism is utilized to drive a valve opening mechanism.

Abstract: A continuously operable fuel injection device comprises a sleeve having a substantially triangular measuring window communicating with the outlet port of a main body, the sleeve being inserted in the cavity of the main body, and a control spool having an annular groove communicating with the inlet port of the main body through an axially extending hole and axially slidably inserted in the sleeve, the substantially triangular measuring window cooperating with the annular groove of the control sleeve to form a variable orifice. By axially sliding the control spool, any desired flow rate can be obtained.

Abstract: A device for balancing, tightening, and guiding an endless apron in the drafting part of a spinning frame comprised of a base plate in the shape of an angle bar with acute angle having a guiding element on one side thereof, a sliding base equipped with an automatic balancing and tightening mechanism on its lower end which is guided by the above said guiding element, and integrally incorporating thereinto a plate spring having a spring latch. A pressing element is provided between the sliding base and the back surface of the base plate, and a locking lever is slidably disposed at right angles to the guiding element.

Abstract: A retainer shim in the form of a film to be placed on each of the front and back sides of a tape when the tape is received in a cassette case composed of a body and a lid, said shim being made of a self-lubricating synthetic resin material and substantially Y-shaped to avoid waste as much as possible from the standpoint of performance by design technique. Merits and details of the construction will be made clear.

Abstract: There is disclosed a gap eliminator used for reducing working cycle time in machine tools. With over-all voltage variations in power sources in a factory taken into consideration, an output .function.(t.sub.0) under no or light load condition of an electric motor and an output k.function.(t) obtained by attenuating an output .function.(t) under loaded condition by an attenuator circuit are compared with each other to provide a primary signal, by which the feed rate is controlled. In this operation, particularly when an output obtained through a detecting circuit is an electric power, a circuit for eliminating periodic noise is disposed immediately after the electric power detector in order to eliminate adverse effects on power waves of periodic noise due to a belt. Further, abnormal overload condition is detected to provide a secondary signal, by which the machine is brought to a stop. Other merits and details of the arrangement will be made clear.