Difference between revisions of "Automatic feed"

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(Created page with "# A hydraulic-control system of valves that when once set and without the manual assistance of a drill runner will reduce or increase feed pressure applied to a drill stem as...")
 
 
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# A hydraulic-control system of valves that when once set and without the manual assistance of a drill runner will reduce or increase feed pressure applied to a drill stem as hardness of rock penetrated changes. Long  
 
# A hydraulic-control system of valves that when once set and without the manual assistance of a drill runner will reduce or increase feed pressure applied to a drill stem as hardness of rock penetrated changes. Long  
 
# A pneumatic rock drill equipped with a power-actuated feed mechanism. Long  <br/>Source: Dictionary of Mining, Mineral, and Related Terms
 
# A pneumatic rock drill equipped with a power-actuated feed mechanism. Long  <br/>Source: Dictionary of Mining, Mineral, and Related Terms
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[[category: geology]]

Latest revision as of 16:46, 20 October 2020

  1. A hydraulic-control system of valves that when once set and without the manual assistance of a drill runner will reduce or increase feed pressure applied to a drill stem as hardness of rock penetrated changes. Long
  2. A pneumatic rock drill equipped with a power-actuated feed mechanism. Long
    Source: Dictionary of Mining, Mineral, and Related Terms


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