Manual training : first lessons in wood-working (1888)
Compton, Alfred G. (Alfred George), 1835-1913 · New York and Chicago, Ivison, Blakeman and company · leaf 50
s. This, how-ever, does not show howdeep the hole is. Supposewe find it to be 2 deep.Looking at the front of the block again,you will understand that, if we could lookinto the block, the hole would appear as ata b, Fig. 13. As the lines at a b are, how-ever, hiddenby the ma-» terial of theblock,… … Fiy. 13. 36 Manual Training. of the block. This group of drawings thusmarked, with the dimensions of all the parts,we will call a Figured Sketch or Work-ing Sketch. It is not necessary that thelines be ruled, provided they are drawn toler- 0
Woodwork (Manual training)
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