Made in 1973 by the United States Bureau of Mines, this historic film “Roof Bolting in Coal Mines” stresses the importance of roof bolting to the coal mining industry. It explains principles and purposes of roof bolting and uses working models, laboratory demonstrations, actual underground applications, and tests. It shows how mining operations and bolting methods are coordinated and emphasizes safety throughout the roof control process. The film shows how readings are frequently taken of the roof to ensure stability (2:13) and how a torque wrench is used to install bolts properly. The end of the film shows views of the Bureau of Mines administration building aka Bartlesville Energy Technology Center, in Bartlesville, Oklahoma.

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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com