作者: John B. Lansberry
DOI:
关键词: Mining engineering 、 Roof 、 Engineering 、 Particulate material 、 Remote control 、 Structural engineering 、 Cutting cycle 、 Mechanism (engineering)
摘要: A method of recovering particulate material from a seam such within the earth bounded above and below by different which comprises steps positioning in mining relation to continuous machine having power driven mechanism thereon for moving through successive cutting cycles include an advancing movement along mined entry direction toward working face seam; illuminating portions space surrounding including disposed forwardly thereof adjacent roof, floor side walls rearwardly face; establishing electromagnetic signals indicative appearance illuminated walls; transmitting established remote control station; converting at station transmitted picture least selected portion controlling cycle so that cut during is up defining roof down based upon visually distinguishing between forms viewing provided apparatus carrying out method.