Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 615
and elevation of a fixed 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 Argandlamp is attached, the supply-tube from which passes through a hole cut in the reflector and leading tothe burner, which is…
Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
