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 254
Fig. 424. secure this condition, the wheels are provided withteeth which will enable them to rotate without thepossibility of slipping. To avoid a separate velocity for each tooth andto obtain an equal speed velocity in all parts of thewheel, the teeth are designed with proper proportions,which… … Fig. 425. r- 280 ROGERS DRAWING AND DESIGN. The rims of two imaginary wheels which have thesame axes and which would have the same velocityratio as two given gear wheels and the same width,form what are z^\t.d, pitch surfaces ; the circles rep-resenting the section of both pitch surfaces, at…
Mechanical drawing · Machine design
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