Standards and conventions for mechanical drawing (1921)
Kepler, Frank Roy, 1875-, Detroit (Mich.). Board of Education · [Detroit] · leaf 28
aced in proportion to the size of the draw-ing, usually about 1/16 apart. Section all details as for cast-iron. The various styles of cross-hatching need not be used toindicate the material, often that for cast-iron and babbitt onlybeing used in actual practice. Examples of some of the morecommon… … ne. / c^sr ^pur gbar ^,^M
Mechanical drawing
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