Machine drawing; a text and problem book for technical students and draftsmen (1921)
Svensen, Carl L. (Carl Lars), 1884- · New York, D. Van Nostrand company · leaf 57
conventional representations may be full views or sectional views,either partial or complete. A view of an object is not a picture and isnot to be regarded as such, still we should be careful not to convey a falseimpression of an object or its construction. It is to avoid the possibilityof such… … FiG. 82. Section without Dotted Lines. MACHINE DRAWING 47 mon parts of machinery have been devised to save time. The true pro-jection of a screw thread would involve drawing a helix and when thefrequency with which screw threads occur is considered, the necessityfor using idioms or engineering…
Machinery
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