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
i-e-holder, becomes part of the circuit, withwhich the two screw-cujis on the right of the base-board are connected. When the wire needs adjust-ment, the wire-holder can be turned up on its axis. The bed supporting the fillet of paper is also ad-justable, so as to regulate the contact between the… … 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
Mechanical engineering · Mechanics · Engineering
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