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 153
austsystem nothing aids sogreatly in keeping awell ordered shop asthe use of electricallydistributed power. Therelative merit of shaft-driven vs. motor-driven machineshas been a source of considerable discussion. The con-census of opinion seems to be, that where heavy machinesare operated either… … Fig. 233.Exhaust System—Exterior Piping. WOODWORKING MACHINES. 149 are variable, such as with a classroom in wood-turning,the group drive consisting of a number of machines con-nected to a shaft, with these shafts each electricallydriven, is considered better. One of the objections to the direct…
Woodwork (Manual training)
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