Abstract: A rocker arm with a roller made with a metal plate and utilized in a valve actuating system of an engine is provided. The roller mounting rocker arm includes a rocker arm body (11) having a pair of side walls (11c) and a connecting portion 12 for connecting the side walls (11c), a roller (7) mounted between the side walls (11c), a pivot engageable recess (12a) formed on the connecting portion by drawing, and a valve stem receiving portion (14) formed at the other end of the side walls (11c). This roller mounting rocker arm has a high rigidity and is suitable for mass-production, and low cost is realized.

Abstract: The invention provides a new method for screening for colorectal cancer by measurement of the level of lactoferrin or myeloperoxidase in feces. Particularly, a screening test method for colorectal cancer by measurement of the level of lactoferrin or myeloperoxidase in feces by immunoassay and by measurement of the level of whole-sized lactoferrin by immunoassay utilizing monoclonal antibody.

Abstract: A rocker arm formed by pressing includes: a rocker arm body substantially U-shaped in section which is made of a plate material; and a roller rotatably supported between the side walls of the rocker arm body substantially at the middle, the rocker arm body having a semi-spherical pivot engaging portion at one end, and a valve engaging portion at the other end. In the rocker arm, each of the side walls has a pivot-side portion beside said pivot engaging portion which is smaller in wall thickness than the remaining.

Abstract: A combined radial and thrust bearing comprising: a radial rolling bearing including an outer ring provided with a large-diameter cylindrical portion the inner peripheral surface of which constitutes a raceway of rollers, a small-diameter cylindrical portion which extends from one end of the large-diameter cylindrical portion for carrying a thrust rolling bearing and which has a smaller diameter than the large-diameter cylindrical portion and a plurality of projections for preventing the thrust rolling bearing which is provided on the periphery at the end portion of the small-diameter cylindrical portion from coming off, and a plurality of rollers disposed on the inner peripheral surface of the outer ring and held by a retainer at regular circumferential intervals; and a thrust rolling bearing including axially arranged first race and second race, the first race being composed of an annular plate, a plurality of rollers disposed and held by an annular retainer at regular circumferential intervals and the secon

Abstract: A valve rotating apparatus of an internal-combustion engine comprises a valve biased in the closing direction by a coil spring, a valve lifter disposed on an engine head in such manner as to be vertically movable together with the valve, a cam formed on a cam shaft for directly driving the valve through the valve lifter, and a thrust rolling bearing retaining the coil spring, the thrust roller bearing comprising an upper washer, a lower washer, and balls held by a cage between the upper and lower washers. The cage is provided between its inner and outer circumferences with a plurality of pockets at regular spatial intervals, a plurality of balls being housing in each pocket; and the inner or outer periphery of each of the upper and lower washers is provided with an axially extending cylindrical portion. The upper washer has the degree of freedom for movement in all directions including X and Y directions, within the same plane.

Abstract: An article of manufacture comprising a blood-collection tube containing an acid such as citric acid in an amount effective to adjust the pH of the blood to be collected in the tube to a level between 5.0 to 7.0. The blood-collection tube may also contain NaF in an amount to produce a concentration thereof between 0.1 to 0.5 mg/ml of the blood.

Abstract: A method for detection of occult blood in a fecal sample which comprises acting a glycosidase type bacteriolytic enzyme on the fecal sample and subjecting the resulting fecal sample to simultaneous detection of hemoglobin, preferably in combination with transferrin, by an immunological measurement procedure.

Abstract: There is described a method of inhibiting glycolysis in blood samples by adding an acid to the blood sample to adjust pH of the blood to a level between 5.0 and 7.0.Collected blood samples undergo glycolysis during storage due to progress of the reaction with glycolytic enzymes with a result that glucose is reduced and lactic acid and pyruvic acid formed by the glycolysis is increased. According to the method of the invention, the glycolysis as mentioned above can be inhibited simply by adjusting pH of the blood sample so that accurate determination of the above-mentioned components are feasible. The preferred acids are citric acid, malonic acid and maleic acid. Addition of citric acid to produce a level between 1.0 and 5.0 mg/ml (blood) is especially preferable. In the method of the invention, further addition of a fluoride compound, preferably NaF, improves the glycolysis-inhibiting action.

Abstract: A sealed thrust ball bearing having a plurality of balls rollable between a first race and a second race and elastic seal members sealing the clearance between the inner peripheral portions of the races and the clearance between the outer peripheral portions of the races. The first race has a hollow cylindrical portion on its inner periphery extending toward the second race with an inner elastic seal member fixedly fitted to an outer side thereof. The second race has a hollow cylindrical portion on its outer periphery extending toward the first race with an outer elastic seal member fixedly fitted to an inner side thereof. The inner elastic seal member has a lip in intimate contact with the inner peripheral portion of the second race. The outer elastic seal member has a lip supporting the axially outer face of the outer peripheral portion of the first race in intimate contact with the face.

Abstract: An adjusting device for adjusting the initial injection lift of a double-injection type fuel injection valve comprises a hollow tubular holder which has one end portion, an axially intermediate portion and another end portion provided, respectively, with support elements for supporting a measuring instrument, mounting elements for mounting the holder on a second nozzle spring-accommodating hollow member of the fuel injection valve, and urging elements disposed in the holder for urging a second movable spring-seat of the fuel injection valve against its stationary seat to hold the former in close contact with the latter. The mounting elements allow axial displacement of the holder relative to the hollow member of the fuel injection valve. The above elements of the holder are so constructed as to permit free axial movement of an elongate probe of the measuring instrument therethrough.

Abstract: A fuel injection valve which is adapted to carry out fuel injection in a double-step manner such that lifting of the nozzle needle through the initial injection stroke causes contraction of a first nozzle spring and subsequent lifting of the nozzle needle through the main injection stroke causes contraction of a second nozzle spring as well as the first nozzle spring. A spacer is removably fitted in an end face of the nozzle holder remote from the nozzle and has its inner end face urgingly engaging the first nozzle spring supported by a first movable spring seat, with a setting load adjusting shim interposed between the spacer and the first nozzle spring. The spacer is retained in place by a hollow threaded member screwed in the nozzle holder.

Abstract: A fuel injection valve including a first nozzle spring and a second nozzle spring provided in its nozzle holder, wherein fuel injection is carried out in such a double-step manner that lifting of the nozzle needle through the initial injection stroke causes contraction of the first nozzle spring and subsequent lifting of the nozzle needle through the main injection stroke causes contraction of the second nozzle spring as well as the first nozzle spring. The first nozzle spring is supported by a first movable spring seat coupled to the nozzle needle, and the second nozzle spring by a second movable spring seat which engages a lift adjusting threaded member rotatably threadedly mounted in the nozzle holder for axial displacement relative to the nozzle holder, respectively.

Abstract: A fuel injection nozzle proper comprises a spring-loaded valve which is opened by fuel pressure in a fuel supply passageway to inject fuel directly into an engine cylinder when the fuel pressure is above a first predetermined value. A check valve is provided in the fuel supply passageway which is opened when the fuel pressure is above a second predetermined value which is higher than the first predetermined value to allow fuel flow through the check valve. A longitudinal passageway having an orifice formed through the check valve element allows fuel flow therethrough even when the fuel pressure is below the second predetermined value so that fuel flows through the check valve to a lesser extent when the check valve is closed than when the check valve is opened so that the fuel flow is constricted and fuel injection is prolonged at low engine speeds thereby reducing combustion noise.

Abstract: A nozzle body is formed with a fuel discharge chamber. A discharge valve opens into the chamber at one end and discharge orifices open from the chamber at the other end at various angles. The axial distances between the orifices and the valve are selected in accordance with the angles in such a manner that the fuel flow paths from the valves to the respective orifices have the same curvature and equal amounts of fuel are discharged through the orifices.

Abstract: A stabilized dry S-adenosyl-L-methionine preparation is obtained by incorporating about 1 - 10 parts by weight of lithium in the form of a salt with 100 parts by weight of S-adenosyl-L-methionine or a low-toxicity salt thereof. According to the invention, instability of S-adenosyl-L-methionine or a salt thereof is substantially eliminated. The stabilized dry preparation is very useful as medical drugs and reagents for biochemical research.

Abstract: N.sup.2,2'-O-dibutyrylguanosine-3',5'-cyclic phosphate or a salt thereof is stabilized by adjusting the moisture content thereof to 3 percent or less by weight.