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Priority to SE9203356ApriorityCriticalpatent/SE506203C2/sv
Publication of SE9203356D0publicationCriticalpatent/SE9203356D0/sv
Publication of SE9203356LpublicationCriticalpatent/SE9203356L/sv
Publication of SE506203C2publicationCriticalpatent/SE506203C2/sv
E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
E21C25/54—Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like
E—FIXED CONSTRUCTIONS
E21—EARTH OR ROCK DRILLING; MINING
E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
E21D3/00—Raising shafts, i.e. working upwards from the bottom
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Engineering & Computer Science
(AREA)
Mining & Mineral Resources
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Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
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Geochemistry & Mineralogy
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Geology
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Mechanical Engineering
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Processing Of Stones Or Stones Resemblance Materials
(AREA)
SE9203356A1992-11-101992-11-10Förfarande för drivning av ett schakt genom utsågning av bergmaterial och anordning för utförande av förfarandet
SE506203C2
(sv)
Method and device for measuring the distance between the drill pipe string and the wall of the well as well as the speed of sound in the drilling mud during drilling.
Förfarande och arrangemang för styrning av funktioFörfarande och arrangemang för styrning av funktionen hos en bergsborranordning försedd med dieselhynen hos en bergsborranordning försedd med dieselhydraulisk kraftkälla draulisk kraftkälla
Procede et dispositif de decoupage et de percage de materiau sur chantier permettant l'interchangeabilite d'une scie et d'une carotteuse connue montees sur un systeme de guidage commun