×

Method of steering a mining machine

  • US 5,116,103 A
  • Filed: 02/11/1991
  • Issued: 05/26/1992
  • Est. Priority Date: 02/09/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of steering a double-ended ranging drum mining machine in a seam in which the machine has a leading cutting drum arranged to cut mineral from a face to a distance at or near the interface of the mineral and an adjacent roof stratum, and a trailing cutting drum arranged to remove residual material from the face and to form a floor, the method comprising the steps ofpositioning a first current cut roof follower means at or adjacent the centre of the machine,measuring the machine tilt using second means,estimating coal thickness using third means and generating algorithms therefromwhereby the height difference between points on the current cut roof can be calculated to control and steer the leading and trailing cutting drums, the algorithms being generated in such a manner that cumulative errors along or towards the face are minimized or eliminated.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×