Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 549
stance; and therefore the transference of the material from one pole tothe other, and the loss by combustion, must be compensated by a slowmovement of the carbons towards each other. Several kinds of apparatusare used for this purpose, but they all depend upon the principle of regu-lating the… … Fig. 262.—Duboscqs Electric Lantern and Regulator. lantern is shown in Fig. 262, with enlarged images of the carbon pointsprojected on. a screen. The mechanism of the regulator is contained with-in the cylindrical box immediately below the lantern. The supports o\both carbons are moved ; that which…
Inventions
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