Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 710
i «Inch a • I :. • ; . … 700 TELEGRAPH. of this reaction is so great, that it has been successfully applied by Prof. Charles G. Page, of Washing-ton, to the propulsion of machinery on a large scale. The axial telegraph is represented in a simple form in Fig. 3400. The U-shaped iron rests upon aspring, seen on the hoard. A…
Mechanical engineering
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