NIOSHTIC-2 Publications Search
U.S. Pat. 4,058,668 1977 Nov; :1-4
The side wall of a right-cylindrical crucible is formed by pairs of concentric tubes, one the outer and one the inner. Open upper ends of the inner tubes are spaced below closed upper ends of outer tubes, and a cooling water circuit serially through the inner and outer tubes is established by manifolds.
Metallurgical processes; Metallurgy
U.S. Patent 4,058,668
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division