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 345
Fios. 531 AITD 53S. 374 ROGERS DRAWING AND DESIGN. … the distance OMwill correspond to the distance thevalve has moved from its middle position. MakeQO equal to MO. If more positions of the eccen-tric are taken, and for each one a similar construc-tion employed, the points corresponding to thepoint Q, found above, will, when joined, produce acurve…
Mechanical drawing · Machine design
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