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Investigation of Requirements and Performance of Safety Catches on Wire-Rope-Suspended, Man-Carrying Conveyances in U.S. Coal Mines

Public Domain


Details

  • Personal Author:
  • Description:
    This report presents the results of a comprehensive investigation of conveyance arrestment devices (safety catches) in U.S. coal mines. Availability and use, performance, inspection, maintenance, testing, procedures, and regulatory requirements were investigated. Information was obtained from equipment manufacturers, mine operators, and regulatory-agency personnel, as well as from studies of domestic and foreign mining safety regulations. Tradtional mine hoists and commercial elevators for mine use were investigated. Results of this and an earlier study of wire-rope practice in U.S. coal mines show a continued need for conveyance arrestment devices. Only two types have been proved reliable for stopping a conveyance without injuring passengers or equipment. These are elevator overspeed-actuated wedge-clamp safeties and broken-rope-actuated devices for wooden guides using a single-tooth-dog developed in Ontario as a braking element. Elevators are widely used in U.S. coal mines, and appear to present no major arrestment problems when using ANSI specifications. [Description provided by NIOSH]
  • Subjects:
  • Series:
    Mining Publications
  • Subseries:
    Open File Report
  • Document Type:
    Text
  • Genre:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    PRC - Pittsburgh Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1-160
  • NIOSHTIC Number:
    nn:10001442
  • NTIS Accession Number:
    PB-218067/7
  • Citation:
    NTIS: PB/218-067/7 Available for Reference At Bureau Libraries; :1-160
  • Federal Fiscal Year:
    1972
  • Performing Organization:
    Battelle Memorial Institute
  • Peer Reviewed:
    False
  • Source Full Name:
    NTIS: PB/218-067/7; Available for Reference At Bureau Libraries
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:b3b26f0595b95081c5eeedc7ddf58f7667f1bdcb0816a4a222251debccf9cda1e3d3081f562dd20be76eab05fbed60f7f2e84f01c04098c47e1279c2580a5f87
  • Download URL:
  • File Type:
    Filetype[PDF - 3.30 MB ]
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