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 336
the positive and negative carbons re-spectively, w^hile A is the switch for turning the current on and off.H is the plunger of the solenoids and I is the carbon clutch, thisbeing what is known as a carbon-feed lamp. The carbons aretogether when A is first closed; the current is excessive; and… … Fig. 29. Differential Mechanism forD. C. Arc Lamp 299 36 ELECTRIC LIGHTING and carbon. G must be so adjusted that this point is reached whenthe arc is at its normal length. Differential Mechanism. In the differential lamp, the seriesand shunt mechanisms are combined, the carbons being togetherat…
Electrical engineering
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