ver C from being too violent, a dash pot is provided. Nearly all the arc lamps used on incandescent light circuits are provided with a small globe that encloses the arc, and they are known on that account as en- closed arc lamps. The advantage of this type of lamp is that the carbons last from ten… … resistance of magnet B, which is wound with very fine wire. Magnet A is wound with large wire, therefore, the magnetism developed in it by the starting current Some of the enclosed arc lamps have the mechanism is next to nothing, but magnet B becomes very strong so arranged that the rod D of Fig.…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
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