Abstract: A device for adjusting a doctor blade of a printing machine comprising an inking roller facing the doctor blade and adapted to be spaced therefrom by a gap to establish a predetermined ink thickness on the inking roller. Sensors are coupled to the doctor blade for determining the spacing between the inking roller and the doctor blade. Servomotors are coupled to the doctor blade to adjust the position of the doctor blade thereby to adjust the size of the gap. A microcomputer receives signals from the sensors to compare signals from the sensors with the desired gap according to given values of ink thickness and for sending signals to the servomotors to adjust the doctor blade so that the actual distance and the desired distance correspond. The microcomputer also receives the signals from the sensors in non-adjusted state when the inking roller is in contact with the doctor blade to establish this as the zero position of the doctor blade.

Abstract: A slidable type constant velocity universal joint comprising an outer member formed with at least three axially extending guide grooves disposed in parallel to one another, and an inner member disposed inside the outer member and provided with at least three radially extending pods projecting therefrom, the respective pods being in engagement, via respective rollers mounted thereon so as to be rotatable and slidable, within the respective guide grooves. The respective rollers are so mounted on the respective pods so as to be, additionally, tiltable in all directions so that the rollers will always be in longitudinally aligned relation in the guide grooves. Each pod is formed with an outer surface with curved generatrices and the surface can be, for example, a spherical surface of comparatively large curvature, and each roller can be formed with an inner surface supported on the pod surface via suitable bearings or guide rings for undergoing universal movement thereon.

Abstract: A heat and cold retention article of manufacture comprising a plurality of layers including a thermal transmission layer of tempered glass free from metal, a foam layer of low density and a lower foam layer of relatively high density. In this configuration, the article of manufacture is suitable as a hot plate and, if a vessel for containing hot or cold substances is employed, the foam layers of relatively low and high density are interposed between two outer layers of metal material which sandwich the foam layers therebetween.

Abstract: A flanged cup-shaped transparent pane member is fitted in a window opening formed in the tank wall and held liquid-tight against the latter by means of a pane retainer plate which is inserted along the wall inside into the pane member through slit means provided therein. The retainer plate fully inserted abuts against a shoulder formation on the wall inside and serves to hold the pane member against inadvertent rotation as well as against falling off the tank wall. That portion of the retainer plate which extends across the follow interior of the cup-shaped pane member serves as a light reflector means for enabling the user to observe the liquid level in the tank with ease and accuracy. A minimum level indicator is formed on the closed end wall of the pane member and a maximum level indicator on the retainer plate at its top for convenience in replenishing the liquid tank.

Abstract: A button-less push switch board including a plurality of push switches which comprises an insulator plate having a plurality of penetrating holes, a transparent flexible cover sheet overlying the main surface of the insulator sheet and having identification marks printed thereon to indicate the positions and functions of the switches, and a printed circuit plate on the reverse surface of the insulator plate and having fixed contacts formed thereon. A transparent block is disposed in each hole of the insulator plate and is urged towards the cover plate by elastic members supported thereon. Each elastic member is of cup-like shape and has a movable contact corresponding to a pair of fixed contacts on the printed circuit plate. A lamp or a light emitting diode is disposed in each hole of the insulator plate and is mounted on the printed circuit. Each fixed contact and each lamp or light emitting diode are connected to an external control circuit.

Abstract: A power transmission device of a motorcycle comprising a main transmission case formed integrally with an engine crank case and accommodating a main transmission, and a sub-transmission case provided at the rear side of the main mission case. The sub-transmission case accommodates a sub-transmission which is drivingly connected to the main transmission and also to a rear wheel of the motorcycle through a transmission mechanism. The transmission mechanism and the sub transmission are disposed at opposite sides of the rear wheel. The sub-transmission case is composed of a case body and a cover for covering an opening of the case body. The opening is formed at a lateral side of the gears of the sub-transmission so that the gears are accessible and replaceable by removing the cover from the opening.

Abstract: A biologically active substance is incorporated in a unitary body with a magnetically responsive material for carrying out diffusion testing. These may be, microbiological, immunological, serological and other biochemical examinations. The body is applied against a substrate or medium by application of an external magnetic field and a reaction region is produced at the site of the body and is measured by means of a reader. In order to insure deposit of the body on the substrate a predetermined location and corresponding reading of the reaction region at such location, the support for the substrate and the dispenser and rear are provided with suitable releasable coupling and orienting devices such that the dispenser and reader can be respectively engaged and oriented on the support in predetermined secured positions.

Abstract: A bracket of simplified, generally rectilinear form carries a pair of slide pins, on which the brake caliper is slidably mounted, at locations substantially aligned with each other radially of the brake disc and on that side of the brake caliper on which the rotating disc leaves the caliper behind. Use of such bracket enables substantial reduction in size and weight of the whole brake assembly. One of the slide pins located relatively close to the axis of the brake disc is removable and an ample working space is obtainable for exchange of the brake pads by swinging the caliper radially outwardly of the disc about the axis of the other slide pin. The brake pads are slidably mounted on a pair of hanger pins removably fitted to the caliper and normally held in place thereon by simple retainer means.

Abstract: Power steering apparatus for a vehicle comprising a rack rod operatively connected to a steering wheel and supported in a steering gear casing, the rack rod being drivable by a power cylinder consisting of an outer cylinder fixed to the steering gear casing, an inner cylinder disposed in the outer cylinder and fitted into the steering gear casing, and a piston mounted on the rack rod to divide the interior of the inner cylinder into first and second oil chambers. A control valve is mounted on the lower surface of the steering gear casing for controlling the operation of the power cylinder. The second oil chamber is in communication with the outer cylinder via the spaces between the coils of a coil spring, the inner cylinder being supported in floating state on the outer cylinder by the coil spring. A pair of parallel, annular or semi-annular oil passages are provided in that portion of the steering gear casing which is engaged with the inner cylinder.

Abstract: A stair assembly for a passenger vehicle, especially an omnibus, in which the stair assembly is arranged in a lateral access area of the vehicle. The stair assembly comprises a horizontally extendable first stair member connected by links to a second stair member to form a parallelogram linkage in which the second stair member can be pivotally moved towards the ground and laterally outwards from the first stair member. In order to bridge a lateral gap between the vehicle and the edge of a boarding platform, the first stair member whose upper surface is at the level of the platform, is extended towards the edge of the platform and the second stair member is carried along in a parallel position beneath the first stair member. When the bus is to be boarded and unboarded from the ground, the first stair member is fully extended, together with the second stair member beneath it whereafter the second stair member is pivoted into lowered position.

Abstract: An automatic white adjusting circuit for a television camera having a color image pick-up tube comprises a first and second variable gain amplifiers for amplifying two predetermined primary color signals of the three primary color signals from an output signal of the image pick-up tube, a matrixing circuit for producing a luminance signal and two color difference signals, by being supplied with either said luminance signal from the output of the image pick-up tube or one remaining primary color signal of the three primary color signals, and outputs of the first and second variable gain amplifiers, an averaging circuit for producing a first and second white detection signals by substantially averaging all or a part of the respective video duration time of the output color difference signals from the matrixing circuit, reference level producing circuit in which a reference level equal to a DC current level of the two predetermined color difference signals of the output signal of the image pick-up tube upon imag

Abstract: An output voltage-adjusting device for a vehicle-mounted generator comprising a circuit including a generator drivably connected to an engine and whose electromagnetic coil is connected to a battery via a switching device adapted to open the circuit upon receipt of an input signal. A signal device is operably coupled to the engine for generating electrical signals of a frequency corresponding to the rotational speed of the engine, and an oscillator converts the output signals of the signal device into pulse signals of a predetermined width having a frequency proportional to the rotational speed of the engine and sends the pulse signals as input signals to the switching device.

Abstract: A four-cycle internal combustion engine comprising a cylinder bore formed in a cylinder block, a piston slidably fitted in the cylinder bore, and a combustion chamber formed in a cylinder head above the piston. The bore, piston and combustion chamber have an elongated non-circular cross-section which, for example, can be of elongated circular or elliptical shape. An intake system for fuel mixture is connected to the combustion chamber to supply fuel mixture to a central region of the combustion chamber and an exhaust system is connected to each end of the combustion chamber in an outer region for discharge of exhaust gases.

Abstract: An explosive having a relatively small amount of powdered ferrite magnet dispersed therethrough, each magnet particle coated with a resin coating which is stable for the explosive material on the entire outer surface thereof. The resultant explosive is readily detected by a magnetic detector and is stable for a long time storage. As the resin coating, methyl methacrylate resin, styrene resin, acrylonitril resin, butadiene resin, vinyl acetate resin, acrylic acid resin, methylacrylate resin and/or the other vinyl resin is used.The resin coating is colored to color the explosives so that explosives may be distinctly visible, readily detected and identified.

Abstract: A carburetor comprising an accelerator pump having a working chamber containing fuel and a piston displaceable in the working chamber to discharge fuel therefrom to an inlet passage of the carburetor. A sleeve is secured to the carburetor housing at one end of the working chamber and the piston is slidably guided by the sleeve for movement into and out of the chamber. A sealing ring adjoins the sleeve and includes a free sealing lip directed into the chamber and sealingly bearing against the piston. In order to vary the amount of fuel delivered to the inlet passage for a given stroke of the piston, a piston and sleeve of different diameter are employed while the linkage mechanism between the throttle valve and the piston can remain without change.

Abstract: An image pickup device comprises an image pickup tube provided with a striped filter which is a repetition of a plurality of stripes, and a pair of collimation forming electrodes which form a collimation, a voltage applying circuit for respectively applying predetermined voltages for forming the above collimation to the pair of collimation forming electrodes of the image pickup tube, and a correction voltage applying circuit for varying the collimation forming voltage ratio by applying a correction voltage to the pair of collimation forming electrodes, where correction voltage has a waveform such that the signal level ratios between the signals of the stripe parts of the striped filter in the color multiplexed signal obtained from the image pickup tube, are substantially constant.