Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 171
oid shifting this 166 MECHANICAL DRAWING drawing, the cloth should be spread over the sheet and one tackat a time removed and inserted through the cloth into the holefrom which it came. Tracing Paper. For temporary drawings, especially wheresome portion of a drawing already made can be traced and… … Fig. 173. Blueprinting Frame Blueprint Paper. Instead of sending the tracing into theshop where it would soon be injured or worn out, prints aremade, usually on blueprint paper. This is a white paper coveredwith a solution which after being exposed to light, turns blue. The Blueprinting Process. To…
Mechanical drawing
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