Elementary course in woodwork ; designed for use in high and technical schools, with one hundred and thirty-four illustrations, by George Alexander Ross (1901)
Ross, George Alexander · Chicago, New York, A. Flanagan Company · leaf 114
HI z in H 5 z 5 z j u.0 U!Z Fig. i2o. 110 ELEMENTAKY COURSE IN WOODWORK. … Pi 6,130 There are several methods used in describing anellipse which the student no doubt has used in study-ing geometry, but the practical stair builder uses atrammel and block. The blockis grooved through its center asshown in Fig. 131, and the tram-mel is a strip of wood; a pencilis fastened on…
Woodwork (Manual training)
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