Cold storage, heating and ventilating on board ship (1911)
Walker, Sydney Ferris · New York : Van Nostrand · leaf 193
■Wlif^PS^^^Si^ FIG. 31.—ISENTHAL FLOOR-HEATING APPARATUS. contact portions of a switch do not make good contact witheach other, heat is always hberated at the surfaces, and some-times arcs are formed with the attendant enormous heat. One form of this heating appliance is known as Kryptol.It is a… … FIG 32.—ISENTHAL FLOOR-HEATING APPARATUS. HEATIXG APPARATUS WITH LOOSE POWDER. 185
Ships -- Heating and ventilation · Cold storage on shipboard
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