Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . PROTECTED BATTERIES. 25 Other porous or membranous substances, such asthick brown paper, or bladder, will answer the samepurpose as leather, in preventing the ready admixtureof the solutions, and allowing a free -oassage to theelectrical current. When the partition is sufficientlythin or permeable, the battery is as powerful as ifcharged in the usual mode with a solution of bluevitriol, 39, The action w^ithin this class of batteries is asfollows: The
Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . PROTECTED BATTERIES. 25 Other porous or membranous substances, such asthick brown paper, or bladder, will answer the samepurpose as leather, in preventing the ready admixtureof the solutions, and allowing a free -oassage to theelectrical current. When the partition is sufficientlythin or permeable, the battery is as powerful as ifcharged in the usual mode with a solution of bluevitriol, 39, The action w^ithin this class of batteries is asfollows: The zinc is oxidized as usual, at the expenseof, the water of the solution -which surrounds it;while the hydrogen, instead of being given off at thesurface of the negative plate, as in most> batteries,decomposes the sulphate of copper, forming v/aterwith the oxygen of the oxide of copper, and liber-ating the sulphuric acid, which passes through theporous partition into the other cell. A gradual andsteady supply of acid is thus furnished to dissolvethe constantly forming oxide of zinc, 40, The protected battery is also commonly callede/^nst
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmagnetism, bookyear18
