VALVES, THEIR MANUFACTURE AND USES Part 8

Description

Reel 1, a father identifies 4 kinds of valves to his family and shows them valves used in their home. Brass valves are cast in a factory. Reel 2, brass valves are finished and tested. Steel valves are made. Shows uses of various valves in automobiles, and at Conowingo Dam, Atlantic City, and the Panama Canal. Reel 3 shows uses of valves at Roosevelt Dam, in the petroleum and helium industries, and for many other purposes.

Collection

Records of the U.S. Bureau of Mines

Series

Public Information Films and Video Recordings