Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 622
cmjiloycd to carry some of hi-, improvements into effect. In the dioptric lights on the Scotch roast, acommon lamp, with a large wick, is kept cfmstantlv ready for lighting; and, in the event of the suddenextinction of the mechanical lamp by the failure of the valves, it is only necessary to…
Mechanical engineering · Mechanics · Engineering
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