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Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)

Rose, Joshua · Philaelphia, H.C. Baird & co.; [etc., etc.] · leaf 263

An illustration from Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers, 1889, leaf 263
g the remaining distance of its path inmaking a complete revolution ; and, although the sub- ^43 MECHANICAL DRAWING SELF-TAUGHT. divisions of eighths of the stroke line B, in Figure274, does not truly represent a like division of thepiston stroke, owing to deviation, caused by inclinationof the… … Scale 1* —1 foot respond exactly with a subdivision of piston strokeinto eighths. The cut-off in cams laid off by the rules herein de-scribed is greater in travelling from one side of theslides than in travelling from the opposite end, onecut-off being more than the actual cut-off of pistonstroke,…

Mechanical drawing

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