Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 142
rable matter discharged, its velocity and other intricate conditions ; but the theory of unbalanced pressure will answer for present explanation. This Hero wheel was a reaction turbine, and, as such, was a much more complicated and ingenious conception than the direct acting or impulsive wheel of… … Fig. 3. at that date, a mystery. No useful application of this device is known, and it was only a toy, consisting of a wheel with flat vanes against which a jet of steam impinged. From this point the art seems confined to England, or mainly so, and from 1784 to 1901 there-were granted in that…
Engineering
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