her. Covenng. —From an electrical point of view, a conductor electric light cables. 4. In submarine cables, which form the last of the series, and its covering must in general present diametrically oppo- Overlaid Wires.—The winding of naked conductors "is the protecting layer is itself covered with… … about 400 meters per day, and Fig. l.-ELECTRIC CABLE MACHINE. velope than does tlie preceding, the product of the entire frame and one which is capable of re- is therefore nearly 10,000 metera sisting repeated friction. The conductors of the telephone formed of iron wire, called an armor, and…
Patented · Cotton · Iron · Patents · Dressed beef · Wire · Freight car · War vessel · Scientific American · Metallic iron · Foul air · Hot air · Sewing machine · Magnetic iron · Live stock
Internet Archive · Public domain (published before 1931). Free to use for anything.
