The Parachute Stopping--preliminary Experiments.
Kissell-FN; Thimons-ED; Vinson-RP
NTIS: PB 242 123 :6 pages
A parachute-type stopping intended for changing the course of mine ventilation air during mine emergencies has been designed and tested. Some production uses are also visualized for metal mines. Preliminary tests in the laboratory and underground indicate that the parachute stopping is a workable concept, but further developmental research is required. (Out of print.)
NTIS Accession No.
NTIS: PB 242 123