. Bulletin. Forests and forestry -- United States. CONSERVATIVE LUMBERING, 51 AT TITE MILLS. At the mills the logs are cut into lumber by various kinds of saws. Of these the circular saw is still very widely used, although the wide bite or kerf which it cuts in the log makes it ver}^ wasteful of timber. A large circular saw makes a kerf a quarter of an inch wide, so that in cutting four one-inch boards enough wood to make a lifth board is ripped into sawdust. Band saws are far less wasteful, for the}^ are thinner. Fig. 35.—Circular saws (edgersj in a Puget Sound sawmill. and make a narrower ke
. Bulletin. Forests and forestry -- United States. CONSERVATIVE LUMBERING, 51 AT TITE MILLS. At the mills the logs are cut into lumber by various kinds of saws. Of these the circular saw is still very widely used, although the wide bite or kerf which it cuts in the log makes it ver}^ wasteful of timber. A large circular saw makes a kerf a quarter of an inch wide, so that in cutting four one-inch boards enough wood to make a lifth board is ripped into sawdust. Band saws are far less wasteful, for the}^ are thinner. Fig. 35.—Circular saws (edgersj in a Puget Sound sawmill. and make a narrower kerf. Hence they are taking the place of the circular saws, although the}' do not work so rapidly. Many mills, in addition to their band saw^sor circulars, use gang saws, which cut out several boards at the same time. Besides lumber the best saw^mills produce great quan- tities of lath and shingles, made either from small logs called "bolts," cut speciall}' for that purpose, or from slabs, edgings, and other pieces of wood which might otherwise be wasted. But in spite of every effort to prevent waste in the mill, b}' using sawdust and other 1116—05 6. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Division of Forestry. Washington : G. P. O.
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