Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 706
Axial Telegraph. The axial tele-graph is founded on the tendency of abar of iron to be drawn into a coil ofwire, through which a galvanic cur-rent is made to pass. Tliis influenceis increased where two coils of wireare used, surrounding the legs of a U-phaped piece of soft iron, the power … 700 TELEGRAPH. Df this reaction is so great, that it has been snccessftilly applied by Prof. Charles G^. Page, of AVashing-ton. to the propulsion of machinery on a Jarge scale. The axial telegraph is represented in a simple form in Ficr. 3400. The U-shapod iron rests upon aspring, seen on the…
Mechanical engineering · Mechanics · Engineering
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