Safety aspects of controls and operations of belt conveyors in coal mines

Author:	Brown, C. L.
Year:	1956
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:7749
Series:	Information circular / United States. Bureau of Mines ;
Report Number:	7749
Subjects:	Coal mines and mining--Safety measures
	Coal mines and mining--Equipment and supplies
	Conveyor belts
Link:	https://hdl.handle.net/2027/mdp.39015078459529