GB754103A - Improvements in mine roof supporting archways - Google Patents

Improvements in mine roof supporting archways

Info

Publication number
GB754103A
GB754103A GB19711/51A GB1971151A GB754103A GB 754103 A GB754103 A GB 754103A GB 19711/51 A GB19711/51 A GB 19711/51A GB 1971151 A GB1971151 A GB 1971151A GB 754103 A GB754103 A GB 754103A
Authority
GB
United Kingdom
Prior art keywords
runner
sleeve
mine
arch member
mine roof
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
GB19711/51A
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.)
FRIEDRICH WILHELM MOLL
Original Assignee
FRIEDRICH WILHELM MOLL
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 FRIEDRICH WILHELM MOLL filed Critical FRIEDRICH WILHELM MOLL
Publication of GB754103A publication Critical patent/GB754103A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14—Lining predominantly with metal
    • E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/183—Supporting means for arch members, not provided for in E21D11/22

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Tents Or Canopies (AREA)

Abstract

754,103. Arches for supporting mine roofs. MOLL, F. W. [trading as MOLL SOHNE MASCHINENFABRIK, F. W.]. May 31. 1951 [Aug. 26, 1950], No. 19711/51. Divided out of and addition to 738,484. Class 20(2). The mine arch of the parent Specification is modified by disposing the brake sleeve 8, through which the arch member 1 slides in a recess 25 in a runner 13 and the sleeve has curved projections 20a at each side supporting it on the runner and allowing angular movement of the arch member. The wooden wedges 10 engage metal wedges 26 the penetration of which due to mine roof load, into the sleeve 8 is stopped by projections 29 and the wooden wedges finally engage stops 30. Further movement of the arch member causes it to pierce the part 31 of the runner.
GB19711/51A 1950-08-26 1951-05-31 Improvements in mine roof supporting archways Expired GB754103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL754103X 1950-08-26

Publications (1)

Publication Number Publication Date
GB754103A true GB754103A (en) 1956-08-01

Family

ID=19825222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19711/51A Expired GB754103A (en) 1950-08-26 1951-05-31 Improvements in mine roof supporting archways

Country Status (1)

Country Link
GB (1) GB754103A (en)

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