Manual training : first lessons in wood-working (1888)
Compton, Alfred G. (Alfred George), 1835-1913 · New York and Chicago, Ivison, Blakeman and company · leaf 146
and then revolve one hand round the other,making the jaws turn quickly between yourarms, and being careful of course that they donot hit your face as they turn. After a littlepractice this becomes very easy, even withrather large screws. After you have thusturned the screw to about the right… … till the jaws touch at the edge C D. Then turnthe back screw B, till they take a firm holdat both edges. Considerable care is required inthis operation, to avoid putting too much press- 132 Manual Training. ure on one part and too little on another. Ifyou tighten the front screw A too much,…
Woodwork (Manual training)
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
