Furnace. (Henry Yoighf so both Voight and RumSCy Openly laid their plans of boilers before ■ the Society on thesame evening. Both at the same time sought theaward of the Magellanic Gold Medal, in communica-tions signed X. Y, and Retrograde. The essay of Retrograde remains with the So-ciety; but… … April 18, 1788.—Presented, a model drawing and descrip-tion of an improved boiler for steam engines, from a candidatefor the annual premium, under tlie signature X. Y. This boiler ia in the form of a double cylinder, or one cylin-der enclosed in another, leaving a space between the inner sur-face…
Fitch, John, 1743-1798 · Steam-navigation
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