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A Census of Mobile Machines Used in U.S. Surface Coal Mines.

Authors
Ungar-EE
Source
NTIS: PB 284 112 Available for Reference At Bureau Libraries :174 pages
Link
NIOSHTIC No.
10000203
Abstract
Results are presented of a census of machines used in surface coal mines in the United States. The numbers of each machine type and model reported to be in use are tabulated for large and small mines in the eastern, central, and western regions. The average daily usage times of the major machine categories and the number of machines that have acoustical and other cabs are also tabulated. Projections of the total numbers of primary production machines are given.
Publication Date
19770101
Document Type
CP; Final Contract Report;
Fiscal Year
1977
NTIS Accession No.
PB-284112
NTIS Price
A09
Identifying No.
OFR 77-78
NIOSH Division
PRC;
Source Name
NTIS: PB 284 112 Available for Reference At Bureau Libraries
Performing Organization
Bolt, Beranek & Newman, Inc.
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