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 615
and elevation of a fi.xed light of 16 lamps. The reflectors are arranged intwo series, one above the other, on circular frames of iron; at the back of each reflector an Aroandlamp is attached, the supply-tube from which passes through a hole cut in the reflector and leading tothe burner, which is…
Mechanical engineering · Mechanics · Engineering
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