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 793
a steelmagnet, having its positive and negative poles. Therod plays in the pipe with perfect freedom, having nostuffing-box, valve connection, or packing of any kindabout it; hence there is no friction. The needle on thedial moves on a polished silver pin, and is controlledby the magnet. It will… … Gtwge-Cocks. Two or three small cocks fixed in front of the boiler of a steam engine, for the pur-pose of ascertaining the height of the water. Gauge Railway. The distance between the rails; the most common gauge is 4 feet 8i inches; thewidest gauge in this country is the Erie Railroad, (6 feet,)…
Mechanical engineering · Mechanics · Engineering
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