The young mechanic; containing directions for the use of all kinds of tools, and for the construction of steam engines and mechanical models, including the art of turning in wood and metal (1902)
[Lukin, James] [from old catalog] · New York, London, G. P. Putnam's sons · leaf 97
o find the proper angle. Therefore I shall let you into thesecret of mitring boxes and mitring boards, which, if youhad much to do of this kind, would shorten your workconsiderably. Fig. 33, A, represents a mitring-board, B a mitring-box. We must go into a little mathematics again, and tryto… … - fa i>0 >>.■ MITRING BOARDS AND BOXES, 83 standing upon another C D, and perpendicular to it—thatis, it leans neither to the right nor to the left. It makestwo angles at h^ one on each side of a b, and these areangles of 90°, or right angles, as I explained. Now, if oneline like a b…
Mechanical engineering · Industrial arts
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