Gun Factories

Establishments where cannon of all calibers are manufactured, as distinguished from armories, where small-arms are made. The U.S. has one at West Troy, N.Y., for the army, and one at Washington, D.C.. for the navy. That of England is at Woolwich, of Germany at E en, of Ru ia at Oberkoff. Other nations purchase. A gun factory comprises an a embly of large boring and turning lathes and rifling machines, with smaller machines of the same cla for making IMG:content-0444.jpg:[graphic] Gun Factory, Bethlehem Iron Co., Pa. the smaller parts of the gun; large traveling cranes, with a carrying capacity up to 120 tons for the 16-inch guns; measuring rooms, where all the work is accurately gauged and inspected; heating furnaces for expanding the parts; a shrinking pit, and an a embling pit. The army gun factory has a plant capable of building the 16-inch gun, but the largest gun yet built is the 12-inch 52-ton steel gun; at the navy factory the largest is the 13-inch 63-ton gun.