Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 450
Fig. 41.—Triple-apron rolls. Fig. 42.—Single-apron roUs. construction in Fig. 44. For transporting this class of binding-harvesters on the road astout two-wheeled truck is commonly used (Fig. 45), as the wheels of the machine track toowidely for rural roadways and narrow bridges. For this purpose… … Fig. 43.—Single-apron operating. binding-harvesters has superseded wood, to resist the effects of weather and maintain integ-rity of alignment. So, also, chain-gearing is employed when it can be made available, in
Mechanical engineering
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