摘要:
In a starter, to improve a heat dissipation performance, an axial length from the end of a starter housing fit into a clutch housing to a starter installation surface of the clutch housing is set to be longer than an axial length from the end of a starter motor not fit into the clutch housing to the starter installation surface. Alternatively, the exposed surface area of the starter housing fit into the clutch housing is set to be larger than the exposed surface area of the portion of the starter housing not fit into the clutch housing and the starter motor. With this configuration, the starter housing can be effectively cooled by whirling air flow in the clutch housing.
摘要:
An electric rotating machine with a lightweight and low cost yoke which has sufficient durability to be used under high vibration environments. A tubular yoke for electric rotating machine has a pair of lid portions laid on both axial ends of a tubular portion of a yoke. Through bolts for press-fitting the pair of lid portions from both sides tightens and fixes the pair of lid portions to the yoke. Concave portions extending from the outer circumference to the inner circumference are formed axially on the tubular portion. The center where the tightening force of the through bolts is applied is set between the hypothetical extension outer diameter and inner diameter of the tubular portion at the concave portion so that the tubular portion and the lid portions are tightened and fixed.
摘要:
A derivative of naphthalocyanine containing a perfluoroalkyl group and having a particular structure for ensuring excellent weather-proof properties, extremely high solubility in various solvents and capability of forming a film, and an optical recording medium prepared by using the derivative and capable of recording while using a focused beam of a semiconductor laser or the like. The derivative of naphthalocyanine containing a perfluoroalkyl group may be prepared by reacting a perfluoroalkanoyl peroxide having a particular structure with a naphthalocyanine.
摘要:
Phosphite compounds of the formula ##STR1## wherein R.sup.1 is an alkyl having 1 to 22 carbon atoms, and use thereof. The phosphite compounds of the present invention show stabilizing action on organic materials and are useful as antioxidants. A combined use of the compounds of the present invention with hindered phenol compounds, light stabilizers or thioalkanoate compounds further improves stabilizing effect.
摘要:
A naphthalocyanine derivative having as substituents at least one group of a formula: SR.sup.1 wherein R.sup.1 is --(CR.sup.2 R.sup.3).sub.x SiR.sup.4 R.sup.5 R.sup.6, in which R.sup.2 to R.sup.6 are H, alkyl groups, etc. is excellent in solubility in saturated hydrocarbon solvents and in absorption of semiconductor laser lights and thus, is suitable for producing optical recording media.
摘要:
A photopolymerizable composition comprising (a) an addition polymerizable compound having a boiling point of 100.degree. C. or high under an atmospheric pressure, (b) a photoinitiator, and (c) a benzene derivative can provide a cured film having high strength suitable for producing, e.g. printed circuit boards.
摘要:
Disclosed are an electrophotographic plate comprising a photoconductive layer containing an organic photoconductive substance on an electroconductive support, characterized in that said photoconductive layer has a film containing as the organic photoconductive substance a metal naphthalocyanine derivative represented by the formula (I): ##STR1## wherein M represents germanium or tin; L and L' each independently represent a halogen, a hydroxyl group, an alkyl group, an alkoxy group or a siloxy group of the formula R.sub.1 R.sub.2 R.sub.3 SiO-- (wherein R.sub.1, R.sub.2 and R.sub.3 each independently represent a hydrogen atom, an alkyl group, an alkoxy group or an aryl group),a metal naphthalocyanine derivative defined above and a process for producing the same.
摘要:
Photosensitive composition comprising (a) an addition polymerizable compound of the general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are hydrogen atom or methyl group, and n+m=8 to 12, (b) an addition-poymerizable compound of the general formula: ##STR2## wherein Z is a cyclic dibasic acid residue, R.sup.5 is a C.sub.1 to C.sub.3 alkylene group, R.sup.6 is hydrogen atom or methyl group, and R.sup.7 is hydrogen atom, methyl group, ethyl group or CH.sub.2 X in which X is chlorine atom or bromine atom, (c) a photoactivatable polymerization initiator, and (d) a linear copolymer having a carboxy content of 17 to 50% by mole, a water absorption of 4 to 30% by weight and a weight average molecular weight of 30,000 to 400,000. Photosensitive laminate having a photosensitive layer formed from the composition has an excellent resistance to plating liquids as well as excellent etching resistance, chemical resistance, adhesion property to boards and developing property.
摘要:
The vacuum advance control system to control the spark timing is disclosed. It comprises the application of a vacuum from the intake manifold of an engine to an advance control in the engine distributor through a vacuum line wherein the intake manifold vacuum controls the spark timing, an air bleed orifice opening to the vacuum line at an opening formed therein; an orifice provided in the vacuum line between the opening and the source of application of the vacuum from the intake manifold so as to prevent excessive flow of air into the engine carburetor and the intake manifold; and means for bleeding an ambient air into the vacuum line through the air bleed orifice. A second air bleed orifice is provided in the system and is at all times open to the ambient air.
摘要:
A measuring instrument includes a display that displays measurements. The display is provided by an organic electroluminescent display device or an electronic paper including an assembly of organic EL (Electro-Luminescence) devices. Since the display is provided by the organic electroluminescent display device or an electronic paper including an assembly of organic electroluminescence devices, visibility of the display can be enhanced. Further, since the display can be used for various measuring instruments in common and the display design can be easily changed, production cost can be reduced.