A New Electric Mine Hoist at Butte, Montana

Author(s): R. S. Sage
Publisher: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 1 January 1917
Volume: XXXVI
Page(s): 655 - 690
ISSN (Paper): 0096-3860
DOI: 10.1109/T-AIEE.1917.4765497



A description of equipment in connection with a recent Ilgner-Ward Leonard hoist installation at the Elm Orlu Mining Company, Butte, Montana. This installation is one of the two largest of this type in operation in this country. Complete data on two sets of tests; the first conducted to analyze a typical day's run and the second to determine efficiency while hoisting under known conditions.