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Scientific American, Vol. 21, No. 18 (1869) (1869)

leaf 4

An illustration from Scientific American, Vol. 21, No. 18 (1869), 1869, leaf 4
been most satisfactory ; but up to the moment the comprsssion in the cylinders, to force back the steam into The guard consists of a wire, bent twice, at right angles, so when I had an opportunity of personally experimenting, in the boiler, and to render the reversal of the steam an abso- :as to… … Simple as this invention is, effects become sensible. At last the steam actually diverts it is one of that character the water indispensable for the absorption of the heat al- KNIFE GUARD. which is, on the whole, most though large quantities of steam escape by the funnel, and, remunerative. Its…

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