Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 155
qual to tlie con-tinued product of theR. P. M. of the lastdriven pulley and the various driven pulley diameters. Let S^ the cutting or surface speed; c= circumferenceof the work; then S= c X R. P- M. (c= diameter X 3 1/7).Let D= diameter of driving pulley and d= diameterof driven pulley; R. P. M.… … Fig. 236. Speed Indicator. r \V nV-- :D X D X D X R. P. M. etc, d X d X d Where transmission is thru gears instead of pulleys, asin determining the feed of a planer, the following rulesare applicable: WOODWORKING MACHINES. 151 Rule for speed: The speed or R. P. M. of any twomeshing gears is…
Woodwork (Manual training)
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