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Scientific American, Vol. 97, No. 26 (December 1907) (1907)

leaf 10

An illustration from Scientific American, Vol. 97, No. 26 (December 1907), 1907, leaf 10
n of the shaft, and can thus The operator would thus see that the circuit had to go along with the wheel, and by sending the other complete a circuit which includes the spark coil of sparks at each contact the cam makes a whole revo- failed to work. As regards the position of these sig- the… … Dr. Branly at the Transmitting Station. The Automatic Telegraph Apparatus. Receiving Apparatus, Showing Disks. DR. BRANLY'S APPARATUS FOR CONTROL OF DISTANT MECHANICAL EFFECTS. ©1907 SCIENTIFIC AMERICAN, INC.

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