ses whatever. With justable ; where the pin is already in place, however, ful, safe and economical. They are furnished in sizes high heads and falls for which it is especially adapted, but one ring is needed on the key. This improved from 4 to 36 inches diameter of wheel, and all inter- the… … STEVENSON'S HELICAL TDEBINE. liquids as well as gases, and would be a convenien ventors, at 200 Broadway, New York. Steps are be- helical curve to the Jonval turbine was suggested to appendage to the feed cock of a pump for supplying ing taken to procure a patent. the inventor of this wheel by…
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