Walking mine support
AssigneeBochumer Eisenhutte Heintzmann GmbH & Co. KG
InventorsGerhard von Klinggraff, Karlheinz Bohnes, Heinz Kunzer, Peter Marr
Life of this patent
Estimating the term…
Abstract
A walking mine support includes a roadway support unit and a face-gallery support unit laterally of the same. The two units are linked by one or more four-pivot couplings whose members can tilt both lengthwise and transversely of the elongation of the roadway and permit walking movements of the units with reference to one another without interfering with proper support of either the roadway or the face-gallery.
Claims8
A walking mine support for supporting the overburden in the area where a roadway and a face gallery merge with one another, comprising a walking roadway support unit adapted to support at least the roof of the roadway and adapted to advance lengthwise of the latter;
- a walking face gallery support unit adapted to support the roof of the face gallery and also adapted to advance lengthwise of the roadway;
- and at least one four-pivot coupling connecting said units with one another and comprising coupling members which are tiltable about mutually inclined axes extending lengthwise of and transverse to the elongation of the roadway, respectively.
Dependencies are inferred from the claim text.