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 122
to keep sawdust off thework so that the line may be ^^^- ^^^ ^^^^^^^ ^ Jig-Saw.easily seen. A foot lever makes possible the turning on and off of power and braking themomentum, with hands free for table work. The crankwheel will have a speed of about 825 to 1,000 R. P. M.One to 2 H. P. will be… … qds^heai QANK WHEEL; GraduatedRdcklr- 5rme POOTG3NTROL 118 WOODWORK FOR SECONDARY SCHOOLS. 116. Boring Machine.—Boring machines, Figs. 191and 192, are made with either vertical or horizontalspindles, or with both. The machine shown in Fig. 191is a vertical spindle niachine with either hand or…
Woodwork (Manual training)
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
