Bench work in wood: a course of study and practice designed for the use of schools and colleges (1902)
Goss, W. F. M. (William Freeman Myrick), 1859-1928 · Boston, Ginn & company · leaf 91
beginning at the awl. Care must be taken that the cake ofchalk is not cut to pieces by the cord. A little practice willmake it easy to hold the cord under the thumb in such a wayas to form a small shoulder on the chalk, Fig. 139, which by 7^ BENCH WORK IN WOOD. the friction of the cord will be… … ad that corresponds to the point on the line ab at which theawl is inserted. Then raise the cord near the middle as shownby Fig. 140, and by suddenly releasing it, cause it to ^^snap*on the surface of the work. In snapping, the cord should bedrawn up vertically, for if drawn at an inclination as…
Woodwork (Manual training)
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