Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 93
of step, and the boiler b, a metallic surface, against the continuous action if the pins on which c is made to rub, the motion of float-wheel should happen to hold the the latter being derived from some con- bar down. trivance such as a float d actuated by (5) Field & Thompson combine a the motion… … When the circuit is broken, the arma- The current of electricity is caused to ture will fall, and the current will be pass from the shell of the boiler to a
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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