Field test of an automated temporary roof support (ATRS) on a low-coal, single fixed-head roof-bolting machine (squirmer)

Author:	Chislaghi, Charles T.
Additional Authors:	Marshall, Thomas E.
Year:	1982
Document Type:	TPRM
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines ;
SUDOC:	I 28.26/6:119
Series:	Technical progress report ;
Report Number:	119
Subjects:	Mine roof bolting
	Coal-mining machinery
Link:	https://hdl.handle.net/2027/mdp.39015077583048