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 45
ated at1140° F. Nearly all solids become luminous at 800 degrees ofheat F. The force of expansion of solids by heat is enormous.Thus iron, if heated from 32° F. to 212°, expands .0012 of itslength, to produce which change.of length by mechanicalmeans would require a force of 15 tons. The best… … THE PATENT OFFICE AT WASHINGTON. 43THE PATENT OFFICE AT WASHINGTON. The situation of the Scientific American PatentAgency in Washington, on F Street, near Seventh Street,is so remarkably convenient that we are enabled to transacta large amount of patent business very quickly. As allmodels,…
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