U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Design of a Retrofittable Temporary Face Support System. Final, Phase I Report

Public Domain


Details

  • Personal Author:
  • Description:
    The objective of this research was to design and develop a remotely operated temporary roof support system that would provide a safe working environment between a freshly cut coal face and the last line of permanently supported roof in which to perform roof bolting activities. The system was to take the form of a retrofit package that could be adapted to a majority of the bolters currently in service. The result was an integrated piece of hardware that will retrofit onto virtually all single-boom bolters by removing the drill boom and relocating and modifying the hydraulic controls. The system is composed of three basic components--a pair of cantilevered roof supports that reach forward to the desired line of support, a mast-type drill unit for drilling holes and torquing bolts, and a transverse slide assembly to carry the drill from hole to hole across the entry without relocating either the bolter or the roof support. A converted bolter not only provides a much safer operation, but it is also projected to increase the production speed as well as reduce the manpower required to operate a section. [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:
    SRC - Spokane Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1-87
  • NIOSHTIC Number:
    nn:10001073
  • Citation:
    For Reference Only At Bureau Libraries; :1-87
  • Federal Fiscal Year:
    1976
  • Performing Organization:
    Foster-Miller Associates, Inc.
  • Peer Reviewed:
    False
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:2295aa91ea3a04528f4f8d43ad3e8d8e686d8d97b71998286a3bb5bed4ee794699b60b3eb164871cd82c9419dc15ec5bf2c139a0dc4c321a0b08f845a93ff645
  • Download URL:
  • File Type:
    Filetype[PDF - 3.50 MB ]
PREVIOUS
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP