Abstract: An anti-electrolytic corrosion type rolling bearing of the present invention has an insulation coating layer formed on the outer surface of, or the outer surface and side walls of, the outer ring. The insulation coating layer has an insulating layer sandwiched between metal layers.

Abstract: Disclosed is an improved turnout unit to be employed in turnout point of railway tracks, which does not necessitate maintenance of the sliding surface of the base plate. In the turnout unit of the present invention, a spray-coated ceramic layer is formed on the base plate and the tongue rail slides on the ceramic layer.

Abstract: A novel plastic composition material for use in making a corneal contact lens comprising the reaction product of:(a) between about 20 and about 60% by weight of polymerizable silicate having the general formula: ##STR1## wherein R=alkyl, aryl or HR'=R or ORY=alkyl, vinyl, aryl or fluoroalkylZ= ##STR2## A=Y, or H B=oxyalkyl, oxyaryl, oxyfluoroalkyl, oxyalkylacrylate, alkyl esters, aryl esters, fluoroalkylesters, or acrylic esters;(b) from about 0 to about 9% of a polymerizable substituted or unsubstituted lower alkyl ester siloxane, including those having alkyl, aryl, or cycloalkyl substituents forming parts of the siloxane groups;(c) from about 5% to about 50% of a polymerizable substituted or unsubstituted lower alkyl or cycloalkyl acrylic ester;(d) at least 5% of a polymerizable fluoroacrylic ester;(e) a wetting agent material which includes a mixture of acrylic or methacrylic acid and N-(1,1-dimethyl-3-oxybutyl)-acrylamide;(f) at least one catalyst and sufficient crosslinking agents to provide a durable, m