A tubular parison for molding a bottle-shaped container of biaxially oriented synthetic resin and a bottle-shaped container blow-molded from the tubular parison for filling, for example, drinking water containing carbon dioxide gas or the like. The tubular parison is advantageously formed so that the shoulder and bottom forming portions are thinner by a predetermined ratio than the body thereof. Thus, the bottle-shaped container blow-molded from the tubular parison is much stronger in constructi...

An automatic chemical analyzer comprising a turntable is disclosed which holds a number of cuvettes containing test liquids to be analyzed and is rotated about a center axis step by step at a given repetition rate, a panchromatic light source is arranged to project radially a measuring light beam from the center axis to the cuvettes, and a light detector is arranged in the center axis to receive the measuring light beam transmitted through the test liquid via prisms. A rotating filter holder is ...

A fuel mixture heating device of an internal combustion engine having a downdraft type carburetor mounted on the collecting portion of the intake manifold. A hollow cylindrical heater vessel is arranged at the lower end of the air horn of the carburetor. The heater vessel comprises an inner pipe, an outer pipe and PTC elements inserted between the inner pipe and the outer pipe for heating the inner pipe before the completion of warm-up of the engine. The inner pipe, having an inner diameter whic...

A fuel mixture heating device of an internal combustion engine having a downdraft type carburetor mounted on the collecting portion of the intake manifold. A hollow cylindrical heater vessel is arranged at the lower end of the air horn of the carburetor. The heater vessel comprises an inner pipe, an outer pipe and a PTC elements inserted between the inner pipe and the outer pipe for heating the inner pipe before the completion of warm-up of the engine. The inner pipe, having an inner diameter wh...

A novel thermosensitive recording material suitable for credit cards, season tickets or passes, and the like to be used for a relatively long period comprises a substrate, a first thermosensitive layer having an acidic developer dispersed in a solid vehicle and laminated on the substrate, and a second thermosensitive layer having a leuco-dye dispersed in a solid vehicle and laminated on the first thermosensitive layer. The recording material can further have a primer layer, an overcoat layer and...

A peripheral, radial surface extends outwardly and upwardly from the bottom surface of a circular tub which supports a walking dragline excavator or like machinery. The extension surface reduces bearing pressure on the tub in both stationary and walking positions, and facilitates sliding of the tub relative to underlying terrain as the equipment is moved. The extension surface is angularly disposed relative to the bottom tub surface so as to be substantially parallel to the terrain during walkin...

A windowpane assembly comprising a molding clip inserted between the circumferential end face of the windowpane and the riser portion of the fillister formed on a vehicle body for fixing a window molding onto the windowpane. The molding clip comprises a holding portion fitted into the window molding, an elastic curved base portion, and a pair of L-shaped latch arms connected to the opposite ends of the base portion and extending so as to approach to each other. Before the molding clip is inserte...

An ion selective electrode having a silicon wafer substrate secured to one end of a tube made of insulating material by an adhesive agent and an ion sensitive film applied on the outer surface of silicon wafer substrate is disclosed. In order to prevent a portion of a side edge of silicon wafer substrate from being exposed to a sample liquid to be measured, the side edge of silicon wafer substrate is tapered and the ion sensitive film is applied on the tapered side edge as well as on the outer s...

A disc brake wherein a caliper having a fluid pressure cylinder portion and a reaction portion for urging a pair of pad assemblies onto a disc rotor is shiftably retained by four slide pins. The slide pins are erected from a torque receiving member, one pair on either side of the disc rotor. Respective two slide pins projecting perpendicularly away from the rotor on opposite sides thereof are positioned co-axially to each other. At least one of the four slide pins disposed on the side with the c...

A coupling between a hub (10) and a shaft (11) has first and second splines (512,513; 530,531) connecting the hub to the shaft. The first splines extend axially and are straight while the second splines are helical. A nut (521) on the shaft urges the hub axially toward a shoulder (527) on the shaft. The first and second splines, being of different helix angles, co-operate to urge the spline faces circumferentially into engagement to take up any clearance therebetween. The different helix angles ...