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Scientific American, Vol. 86, No. 20 (May 17, 1902) (1902)

leaf 11

An illustration from Scientific American, Vol. 86, No. 20 (May 17, 1902), 1902, leaf 11
hour. The danger to pedes- UNFAIR CoMPETITION.—Where the attempt is made so parallel ribs on their outer faces, which press against trians is no greater from the pneumatic-tired wheels closely to imitate a competing article as to confuse similar ribs on the next plate and hold the plates and… … of this battery is a chemically prepared cardboard current. The city claimed that the company had not envelope that surrounds and separates the plates, THE MADDEN STAMPED LEAD GRID used proper means for returning the current to the thus making short circuits practically impossible. AND PLATE: power…

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