Inside Out Library · Explore

Woodwork and mechanical drawing (1914)

Fox, William Paul. [from old catalog] · Chicago, Ill., Fox brothers · leaf 65

An illustration from Woodwork and mechanical drawing, 1914, leaf 65
— 61 — LUMBERING The trees are cut down. The winter time is the best timefor cutting, as there is less sap in the tree at this time of theyear. The summer is the next best, the fall and the spring beingthe least favorable times. The trees are stripped of theirbranches, and shipped to the saw mill.… … Upper, sawing logs into lengths; lower, a large load of white pine logs; right,yellow pine in a southern forest. contains sap and moisture which will evaporate and cause thelumber to shrink, especially across the grain. Some woodsshrink as much as one inch to a board twelve inches wide. Inlength…

Woodwork · Mechanical drawing

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

More pictures from Woodwork and mechanical drawing

More like this