GB966304A - Improved travelling shoring-up equipment - Google Patents

Improved travelling shoring-up equipment

Info

Publication number
GB966304A
GB966304A GB4017060A GB4017060A GB966304A GB 966304 A GB966304 A GB 966304A GB 4017060 A GB4017060 A GB 4017060A GB 4017060 A GB4017060 A GB 4017060A GB 966304 A GB966304 A GB 966304A
Authority
GB
United Kingdom
Prior art keywords
shoring
equipment
improved travelling
advancing
props
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4017060A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Houilleres du Bassin du Nord et du Pas de Calais
Original Assignee
Houilleres du Bassin du Nord et du Pas de Calais
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Houilleres du Bassin du Nord et du Pas de Calais filed Critical Houilleres du Bassin du Nord et du Pas de Calais
Publication of GB966304A publication Critical patent/GB966304A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

966,304. Advancing mine roof supports. HOUILLERES DU BASSIN DU NORD ET DU PAS-DE-CALAIS. Nov. 22, 1960 [Nov. 24, 1959], No. 40170/60. Heading E1E. An advancing mine roof support comprises two props 3, 4 incorporating double-acting advancing pistons 9, 10 respectively which are interconnected by a coupling 13 and have their cylinders 7, 8 horizontally mounted on the props. Reference has been directed by the Comptroller to Specification 881,364.
GB4017060A 1959-11-24 1960-11-22 Improved travelling shoring-up equipment Expired GB966304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR811034A FR1249920A (en) 1959-11-24 1959-11-24 Method of moving the elements of a walking support and equipment allowing the implementation of this method

Publications (1)

Publication Number Publication Date
GB966304A true GB966304A (en) 1964-08-12

Family

ID=8721686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4017060A Expired GB966304A (en) 1959-11-24 1960-11-22 Improved travelling shoring-up equipment

Country Status (2)

Country Link
FR (1) FR1249920A (en)
GB (1) GB966304A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930838A (en) * 1960-08-31 1963-07-10 Gullick Ltd Improvements in or relating to roof supports for mines and the like
US3197965A (en) * 1961-01-10 1965-08-03 Electro Hydraulies Ltd Self-advancing mine roof supports
DE1205932B (en) * 1962-02-26 1965-12-02 Kloeckner Werke Ag Expansion team for moving longwall mining

Also Published As

Publication number Publication date
FR1249920A (en) 1961-01-06

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