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 37
ROGERS DRAWING AND DESIGN. … Let it be required to draw a four-sided planefigure, all sides of which are equal and all its anglesright angles. Such a figure is called a square. If the sides of the required square should beparallel to the edges of the drawing board, we thendraw a horizontal line by means of the tee-square.Fig.…
Mechanical drawing · Machine design
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