Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 338
Fig. 30. Enclosed Are Lamp Showing Carbon Feed Mechanism consumed, requiring that they be renewed daily for this type oflamp. The open arc lamp is used but little at present. Enclosed Type. Enclosed arcs for series systems are constructedmuch the same as the open lamp and are controlled by either…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.