Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 547
Fig, 259.—Daniells Cell and Battery. are provided with screws by which wires may be attached. In the coppervessel is placed a saturated solution of sulphate of copper,and some crystals■of the same substance are placed on the perforated shelf within the vessel.The porous tube is filled with diluted… … Fig. 260.—Groves Cell and Battery. is in action the zinc is dissolved by the sulphuric acid, and metallic copperis continually deposited upon the internal surface of the copper vessel.Daniells battery, in some form or other, is much used for telegraphs andfor electrotyping. Groves cell is shown in…
Inventions
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