American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 41
nder con=t lined within the zinc cup, composed of carbon and manganese, to which is attachedthe binding post c. The space between the two cylinders, zj and cm, is filled withan exciting agent, in liquid form, which afterwards becomes comparatively solid.The whole is sealed in the cup by some… … THE BURNLEY DRY CELL. DRY BATTERIES. 23 The claimed effect of the oxide of zinc upon the composition is to loosen andmake it porous, and tliat the greater porosity tlius secured facilitates the interchange ofthe gases and diminishes the tendency to polarization. The internal resistance of thecell…
Telegraph
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