Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 148
FIk- 21. Swtional Views of SiiiKle-OlDwer Wi-stitmhousc NiniKt Lamp lu-atcr ai.tl to ]>n>li>ii<, tlif life of ihc iicatcr. Tlie automatic cul-otttis oj)erati(l l»v means of an electroma;,net st) arran<;e(l that currentflows throuj^li tiiis maj^net as soon as the glower hecomes a…
Architecture · Building
Internet Archive · Kelly Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
