Abstract: Provided is a combined oil ring that further reduces engine oil consumption. A combined oil ring attached to an oil ring groove of a piston includes: a pair of upper and lower side rails each formed into a flat annular shape, and having a slide contact part that comes into sliding contact with a cylinder; and a spacer expander arranged between the pair of upper and lower side rails. In at least the upper side rail of the pair of upper and lower side rails, a cross-sectional shape of the slide contact part along an axial direction of the piston is a tapered shape linearly spreading from upper to lower parts of the piston; the tapered shape is at an angle of 5 to 30 degrees with respect to a central axis of the spacer expander, and has a vertex of the tapered shape within 0.15 mm from a lower end of the side rail; and a part closer to the lower end than the vertex is formed into a curved shape having a curvature of R0.01 to 0.5.

Abstract: Provided is a combined oil ring that further reduces engine oil consumption. A combined oil ring attached to an oil ring groove of a piston includes: a pair of upper and lower side rails each formed into a flat annular shape, and having a slide contact part that comes into sliding contact with a cylinder; and a spacer expander arranged between the pair of upper and lower side rails. In at least the upper side rail of the pair of upper and lower side rails, a cross-sectional shape of the slide contact part along an axial direction of the piston is a tapered shape linearly spreading from upper to lower parts of the piston; the tapered shape is at an angle of 5 to 30 degrees with respect to a central axis of the spacer expander, and has a vertex of the tapered shape within 0.15 mm from a lower end of the side rail; and a part closer to the lower end than the vertex is formed into a curved shape having a curvature of R0.01 to 0.5.

Abstract: An internal combustion engine oil ring which stably retains, for a long period, the function of scraping excess oil from a cylinder inner wall surface and letting the excess oil flow down to an underside of a piston and ensures reduction in the amount of oil consumption when an internal combustion engine is driven. An internal combustion engine oil ring is provided, whose main body includes, along an inner peripheral surface, a coil expander receiving recess having a generally semicircular shape in cross-section in an oil ring axial direction, an inner peripheral surface of the coil expander receiving recess has an oil return groove formed along an inner peripheral direction for smoothly returning scraped oil to an underside of a piston, and an outer peripheral shape of the groove is composed of a straight line and a curved line continuous therewith in cross-section in the oil ring axial direction.

Abstract: An annular seal member for use in a spherical exhaust pipe joint is provided with, on an inner peripheral surface and an outer peripheral surface thereof, a sliding surface for slidably moving the spherical exhaust pipe joint. The annular seal member includes an annular mesh structural body having a compressed wire mesh; and a heat-resistant sheet member which is compressed to be integrally formed with the compressed wire mesh. At least a part of the compressed wire mesh which is exposed from the sliding surface has a dispersive plating layer in which at least one kind of particle selected from the group consisting of fluorine resin particles, boron nitride particles, molybdenum disulfide particles, and silicon carbide particles is dispersed.

Abstract: An annular seal member for use in a spherical exhaust pipe joint is provided with, on an inner peripheral surface and an outer peripheral surface thereof, a sliding surface for slidably moving the spherical exhaust pipe joint. The annular seal member includes an annular mesh structural body having a compressed wire mesh; and a heat-resistant sheet member which is compressed to be integrally formed with the compressed wire mesh. At least a part of the compressed wire mesh which is exposed from the sliding surface has a dispersive plating layer in which at least one kind of particle selected from the group consisting of fluorine resin particles, boron nitride particles, molybdenum disulfide particles, and silicon carbide particles is dispersed.

Abstract: An annular seal member for use in a spherical exhaust pipe joint is provided with, on an inner peripheral surface and an outer peripheral surface thereof, a sliding surface for slidably moving the spherical exhaust pipe joint. The annular seal member includes an annular mesh structural body having a compressed wire mesh; and a heat-resistant sheet member which is compressed to be integrally formed with the compressed wire mesh. At least a part of the compressed wire mesh which is exposed from the sliding surface has a dispersive plating layer in which at least one kind of particle selected from the group consisting of fluorine resin particles, boron nitride particles, molybdenum disulfide particles, and silicon carbide particles is dispersed.

Abstract: An annular seal member for use in a spherical exhaust pipe joint is provided with, on an inner peripheral surface and an outer peripheral surface thereof, a sliding surface for slidably moving the spherical exhaust pipe joint. The annular seal member includes an annular mesh structural body having a compressed wire mesh; and a heat-resistant sheet member which is compressed to be integrally formed with the compressed wire mesh. At least a part of the compressed wire mesh which is exposed from the sliding surface has a dispersive plating layer in which at least one kind of particles selected from the group consisting of fluorine resin particles, boron nitride particles, molybdenum disulfide particles, and silicon carbide particles are dispersed.

Abstract: An evaluation method that enables quantitative evaluation of qualitative index to engineer's productivity without influenced by a subjective judgments. A theme that is set as an engineer's productivity index that is qualitative, a target-converted amount of money or a target-converted numerical value that is set for the theme, a result of evaluation in predetermined evaluation levels that is performed regularly for the theme, and coefficients that are set for the respective evaluation levels are employed as data. A determined evaluation level is input to a computer at the time of evaluation for the theme and the computer calculates the product of a coefficient corresponding to the input evaluation level and the target-converted amount of money or numerical value and stores the calculated product.

Abstract: A semiconductor device test system includes a first warehouse, an insertion and extraction unit, a second warehouse, a test burn-in unit, and a scheduler. The scheduler sets a test schedule so that the test burn-in unit tests the semiconductor devices according to the type of semiconductor devices, based on product data transmitted from the first and second warehouses. The scheduler issues an instruction to transfer a desired burn-in board from the second warehouse to the insertion and extraction unit based on the insertion and extraction schedule. The scheduler issues an instruction to transfer the desired burn-in board from the insertion and extraction unit to the second warehouse based on the insertion and extraction schedule. A high throughput test system is thus provided that concurrently carries out the insertion and extraction of semiconductor devices with respect to burn-in boards.

Abstract: Means is disclosed for washing the inside of a pelletizing machine containing a bag filter which is capable of being raised and lowered within the body of the machine. A vertically movable, upright means to spray washing liquid in three dimensions is provided above the bag filter. A horizontally movable spraying means is provided below the bag filter. This horizontal spraying means can be retracted from inside the pelletizing machine during pelletizing operations, but is capable of spraying washing liquid upwardly into the open end of the bag filter during washing operations.

Abstract: Each of the washing units A and B comprises an openable and closable pinch valve unit 4 branchwise connected to a pipeline C, an autofeeder unit 5 for controlling the feed for advance and retraction movement of a high pressure hose 6 having rotatable nozzle unit connected to the front end thereof, and a hose reel unit 7 for winding and unwinding the high pressure hose. During washing operation, the nozzle unit enters the pipeline C through the pinch valve unit 4 now opened to wash the inner surface of the pipeline. During nonwashing period, the nozzle unit is moved rearward and completely isolated from the pipeline by the pinch valve unit 4 now closed. Therefore, the washing units A and B are completely separated from the pipeline C during nonwashing period.

Abstract: In a method of foreseeing or detecting break-through of a gas in a gas-adsorbing apparatus utilizing a gas-adsorbing material, the improvement in which the break-through is foreseen or detected by detecting a weight of the gas adsorbed by the gas-adsorbing material. When the gas to be detected contains boron trichloride, the break-through can be foreseen or detected by detecting a color change of a detecting agent such as 1,1'-dianthrimide or a combination of caraminic acid, hydrochloric acid and sulfuric acid, the detecting agent being arranged in a lower stream following the gas-adsorbing material and which shows a color change upon contact with boron trichloride.

Abstract: There are provided improved process and apparatus for preparing a laminated heat-shrinkable strip comprising upper and lower heat-shrinkable sheets fused together with an electric conductor wire sandwiched therebetween as means for covering and protecting joints of steel pipes of oil pipelines or cables.

Abstract: A starting control apparatus for an AC load includes a bidirectional triode thyristor switching device connected in series between an AC power source and the load, a rectifying circuit connected in parallel to the bidirectional triode thyristor switching device, a first time constant circuit connected between output terminals of the rectifying circuit which discharges to turn on the bidirectional triode thyristor switching device when the charged potential reaches a predetermined potential, a second time constant circuit connected between the output terminals of the rectifying circuit and having a time constant larger than the time constant of the first time constant circuit and maintaining the charged potential in the ON state of the bidirectional triode thyristor switching device, and a speedy charging device which rapidly increases the charged potential to the sustaining potential of the second time constant circuit during the recharging period for the first time constant circuit while recovering the contr

Abstract: A sealed thermostatic heater for use in a hair curling iron which uses a positive temperature coefficient (PTC) thermistor as a heat source together with a wire-wound heater, coated heater or ceramic heater.

Abstract: A DC to DC power converter of the chopper-type includes a reverse conducting main thyristor device, or equivalent, and a saturable autotransformer in the power path of the main thyristor device, the autotransformer being in the saturated state when the main thyristor device is conducting, and a gated capacitor commutating circuit to desaturate the autotransformer for commutating the main thyristor device out of conduction.