Notes and exercises in natural philosophy : including statics, hydrostatics, pneumatics, dynamics and hydrodynamics : designed for the use of normal and grammar schools, and the higher classes in common schools (1860)
Sangster, John Herbert, 1831-1904 · Montreal : J. Lovell · leaf 33
nion. 90, Axles are made to act on wheels by various methods—as by the mere friction of their surfaces, by straps orendless bands, &c. ; but the most common method oftransmitting motion through a train of wheelwork is bymeans of teeth or cogs raised upon the circumferences ofthe wheels and… … 92. Wheel work maybe used either to con-centrate or diffuse power.The power is concen-trated when the pinionsturn the wheels, as is thecase in the crane, which is used to gain power. The power is diffused when thewheels turn the pinions, as is the case in the fanning mill,threshing machine,…
Physics
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