Abstract:
A sensor is inserted in the exhaust pipe of a normally aspirated type diesel engine. When the oxygen concentration in the exhaust gas from the engine falls below a preset level, the sensor detects the insufficiency of oxygen concentration and causes oxygen to be supplied into the cylinder so as to make up for the shortage of oxygen. By thus maintaining the oxygen concentration in the exhaust gas above the said preset level, noxious components of the exhaust gas are controlled.
Abstract:
A magneto-reactance element comprising a semiconductor, a pair of current terminals at opposite ends thereof, and at least one reactive component at angles to the current path of the semiconductor, and forming a circuit therewith, whereby a reactance is produced across the current terminals dependent upon a magnetic field and the value of the reactance varies according to the strength of the magnetic field.
Abstract:
Disclosed is method and apparatus for producing semi-finished ''''mesa'''' type watch crystals whose opposite surfaces have a precise flatness nearly equalling that of the finished crystal. According to the principle of this invention a glass sheet is, after being finely ground, heated and softened around the annular perimeter part of the glass sheet, which part is to be shaped into the bent flange portion of the mesa type crystal. In the course of heating the invasion by flames over the opposite surfaces of the glass sheet beyond the annular perimeter part thereof is completely prevented, thus assuring that the fineground surfaces of the glass sheet are not spoiled by flames, retaining a precise flatness nearly equalling that of the finished crystal.
Abstract:
A vulcanizing agent and other component chemicals necessary for rubber formulation are added to a coprecipitate containing chloroprene rubber and barium silicate, and the rubber compound so obtained is subjected to blending. Further, the rubber compound is overlaid with a metal sheet and vulcanized under application of heat and pressure, whereby a metal and chloroprene rubber composite material is produced.
Abstract:
A linear polyamide having a high glass transition temperature composed essentially of monomer units randomly distributed in the polymer chain, said monomer units having the formula
OR
WHEREIN R is a member selected from the group consisting of aliphatic, aromatic and aliphatic-aromatic radicals.
Abstract:
A process for the insolubilization of N-(vinyl)phenylacrylamide polymers which comprises polymerizing or copolymerizing by cationic catalysts thereby producing soluble polymers, and irradiating the resulting soluble polymers with light in the presence of a light polymerization initiator thereby polymerizing the vinyl groups remaining in said soluble polymers and threedimentional network structure polymers produced by the above mentioned process.
Abstract:
TRIFLUOROMENTHYL HYPOFLUORITE IS PRODUCED BY BLOWING CARBONYL FLUORIDE IN A BUBBLE STATE INTO ANHYDROUS HYDROGEN FLUORIDE THROUGH WHICH ELECTRIC CURRENT IS BEING PASSED, THEREBY FLUORINATING SAID CARBONYL FLUORIDE.
Abstract:
A MIXTURE OF LANTHANUM OXIDE, CALCIUM CARBONATE AND CHROME OXIDE IS FIRED TO PRODUCE A SOLID SOLUTION WHEREIN A PERCENTAGE OF THE LANTHANUM IONS OF THE LANTHANUM OXIDE HAVE BEEN REPLACED BY CALCIUM IONS. THIS SOLID SOLUTION IS THEN PULVERIZED AND MOLDED TO PRODUCE AND ELECTRODE OF HIGH ELECTRON CONDUCTIVITY ESPECIALLY APPROPRIATE FOR USE IN THE MAGNETO-HYDRO-DYNAMIC GENERATOR.
Abstract:
Two backup rolls having work rollers arranged on the peripheral surface thereof and adapted to roll thereon are arranged adjacently one above the other. The ends of said work rollers on each said backup roll are supported by a pair of holding disks, and a certain relative speed of rotation is given to said pair of holding disks and the backup roll so that the work rollers simultaneously rotate about their own axis and about the axis of the backup roll. The machine operates as a leveler which levels metal sheet passing between the rotating work rollers.