Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 173
of the tracing cloth must bemade smooth in those places where lines have beenerased ; this is accomplished by rubbing the cloth 190 ROGERS DRAWING AND DESIGN. with soapstone or powdered pumice stone, appliedwith a soft cloth or with the finger. When a mis-take made is so serious that it cannot be… … Read this way. Fig. 200. of the draughtsman as shown in Fig. 302 which is arepresentation of a blueprint taken from a tracing.The letters on a drawing should be placed, as nearas possible, as shown in Fig. 300; when a part towhich a note refers is at an angle to the base line,the letters should be…
Mechanical drawing · Machine design
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