Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . may by a converse operation determine the pitch of thescrew. Drawing P Kas before, Bet off PE; then draw K K and produce it to cut C I) in G, thusgiving / ff, the required pitch. Face-Geai:isc,. This form of gearing was formerly much used in wooden mill-work, but i- now seldom met within heavy machinery, bevel-gearing being used instead. The latter has the advantage that the teethare in contact along a line, thus distributing the pressure and the wear over a considerable surfaceduring
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . may by a converse operation determine the pitch of thescrew. Drawing P Kas before, Bet off PE; then draw K K and produce it to cut C I) in G, thusgiving / ff, the required pitch. Face-Geai:isc,. This form of gearing was formerly much used in wooden mill-work, but i- now seldom met within heavy machinery, bevel-gearing being used instead. The latter has the advantage that the teethare in contact along a line, thus distributing the pressure and the wear over a considerable surfaceduring the action ; whereas in the former the teeth touch each other in a single point only, so thatduring the whole action the wear is confined to a mere line joining the BUCCessive points of in light mechanism the facility of forming the teeth in the lathe may make it desirable to employthis form of gearing. The name is derived from the fact that the turned pins forming the teeth areoften set in the faces of circular disks, as in Fig. 2140. In this case the teeth are cylindrical pins, 2139.
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
