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Steam engines, prepared in the Extension division of the University of Wisconsin (1919)

Shealy, Edward Marvin · New York, McGraw-Hill · leaf 272

An illustration from Steam engines, prepared in the Extension division of the University of Wisconsin, 1919, leaf 272 — -phshed the metal surfaces will not touch but the journal willAfloat on oil and the friction will be enormously reduced. Thiscondition is illustrated in Fig. 159 which shows the two surfacesof Fig. 158 but with a film of oil between them. In order to secure a film of oil between bearing surfaces… … Fig. 160. flat, as is the case with the crosshead or piston of an engine,the ends of the crosshead or piston should be slightly beveled sothat there are no sharp edges. If the edges are left sharp the filmof oil will be scraped off and there will be metallic contact betweenthe bearing surfaces.…

Steam-engines

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