Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 103
nthe teeth of both wheels in opposite directions. At thepoint where the teeth are interlocked, however, thesurface pressed is practically equal to but a single tooth.|H while the contrary pressures are exerted upon two. Thewheels therefore rotate in the direction of the arrowswith a force… … ROTARY STEAM-ENGINES. 87 upon the preservation of this close contact throughout the movement.It is affirmed that this object is completely secured, and that the effectof wear is to improve rather than to injure the performance of themachine. It is further affirmed that steam may be used in this…
Machinery · Scientific apparatus and instruments
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