Cold storage, heating and ventilating on board ship (1911)
Walker, Sydney Ferris · New York : Van Nostrand · leaf 188
arevery numerous, conductors, or, as it would probably be more NON-LUMINOUS HEATING APPARATUS. 179 correct to call many of them, semi-conductors, are arrangedin various forms, so that electric currents can be deliveredto them, and so that the conductors, or semi-conductors, candeliver their heat to… … FIG. 24.—PROMETHEUS STATEROOM HEATER, ELEMENTS AND DETAILS. ductor has been deposited in a layer or film. The stripsof mica are provided with clips at the ends, in connection withthe powdered conductor, and these clips form the connectionto the source of current. Fig. 24 shows the heating…
Ships -- Heating and ventilation · Cold storage on shipboard
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