Foundry
Foundries are distinguished by either the metals employed or the class of castings made, as iron, steel, brass, statue, type, bell foundries, etc.; casting the finer metals, as gold, silver, and the infinite number of alloys of these and other metals, being necessarily conducted on a smaller scale. See FOUNDING.
Fountain-runner is a running-gate supplied from a source below the point at which the metal enters the mould, and may be formed by either connecting a vertical runner from the casting down to a horizontal one below, or by a tapered cylindrical half-ring, having one end touching the casting and the other in proximity to the main runner at the joint. It is then termed a horn-gate. Such runners are serviceable when it is desired to fill a mould easily, and with as little friction as possible. See GATE; RUNNER. Free Sand is sand which, owing to its freedom from alumina, is without the power of cohesiveness, as stone-sand, beach-sand, river-sand, etc. See FACING-SAND; CORE-SAND; FLOUR.