Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 881
hile the small mass and leverage of the armature, together with the strongmagnetic field in which it is placed, prevent its moving under shock or vibration. It re-sponds, therefore, only to the impulses sent through the coils, and its action is very delicatein spite of its shock-resisting power.… … Fig. 36.—Car connections. roofs of the cars being so charged that thet act inductively upon the telegraph wires alongthe line, and thus render communication possible. In the same way the wires may actupon the roofs, and a message may be received on the train. The arrangements of the ear and the…
Mechanical engineering
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