The Scientific American reference book; a compendium of useful information, containing the complete census of the United States by counties ... patent and copyright laws ... forms for patents, caveats, assignments, and licenses ... etc (1892)
New York, Munn · leaf 137
d the figure A E D H will be theellipsis required. . The Scientific American.—* It is hardly necessaryfor us to speak of its merits to those who are thoroughlyposted up in the improvements of the age ; but the generalreading public may not be so well aware that it contains thefinest engravings of… … THE CONDENSING ENGINE. 185 THE STEAM-ENGIWE. Every mechanic and inventor should make himself gen-erally familiar with the construction and operation of thesteam-engine. To assist them In gaining this knowledge,we subjoin for reference a diagram of the common Con-;densing Engine, with letters of…
Patents
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