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 345
illustrative of the performance of the modernunit. In general the modern type of lamp gives about 2.5 meanhemispherical candle-power per watt with white carbons andAlba glassware. With clear glassware the candle-power willrun upwards of 5 mean hemispherical candle-power per watt con-sumption.… … ■StartingMagnet °^^ Fig. 36. Diagram of Connections for Luminous Arc Lamp known as the magnetite or metallic arc lamp. Such lamps wereintroduced as early as 1903. The type most commonly employeduses a copper disc as one electrode and a magnetite stick—formed byforcing magnetite, to which titanium…
Electrical engineering
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