THE STORY OF A ROCK-DUSTED COAL MINE Part 6

Description

Shows how rock dust is used to render coal dust nonexplosive, using the New Orient Mine at West Frankfort, Illinois, to demonstrate. Reel 1 explains how rock dust sprayed in mines can prevent dust explosions. Coal dust is removed prior to the application of rock dust. Reel 2, coal dust samples are tested for explosive content. Shows test in which troughs of rock dust are automatically released when an explosion occurs.

Collection

Records of the U.S. Bureau of Mines

Series

Public Information Films and Video Recordings