GB685477A - Improvements in mine roof supports and the like - Google Patents

Improvements in mine roof supports and the like

Info

Publication number
GB685477A
GB685477A GB10799/50A GB1079950A GB685477A GB 685477 A GB685477 A GB 685477A GB 10799/50 A GB10799/50 A GB 10799/50A GB 1079950 A GB1079950 A GB 1079950A GB 685477 A GB685477 A GB 685477A
Authority
GB
United Kingdom
Prior art keywords
strap
outer member
straps
flanges
arches
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
GB10799/50A
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.)
MARGOT VON LINSINGEN
Original Assignee
MARGOT VON LINSINGEN
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 MARGOT VON LINSINGEN filed Critical MARGOT VON LINSINGEN
Publication of GB685477A publication Critical patent/GB685477A/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
    • E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure

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

685,477. Mine arches. LINSINGEN, M. VON, (trading as BOCHUMER EISONHUETTE HEINTZMANN & CO.). May 2, 1950 [May 2, 1949], No. 10799/50. Class 20(ii) Flanged, trough-section parts 1, 2 of arches for mine roof support overlap and are clamped together by stirrup bolts 5 and straps 3 which allow relative movement under roof pressure and have flanges 4 which are thicker than the middle part of the strap and engage the flanges 2a of the outer member 2 and there is a space between the middle part of the strap and the outer member 2. Two stirrup bolts and straps are used and one bolt engages a notch 7 at the end of the inner member 1. The other bolt and strap may be positively connected by a ledge or projection on the strap engaging the end or bottom of the outer member.
GB10799/50A 1949-05-02 1950-05-02 Improvements in mine roof supports and the like Expired GB685477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE685477X 1949-05-02

Publications (1)

Publication Number Publication Date
GB685477A true GB685477A (en) 1953-01-07

Family

ID=6597875

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10799/50A Expired GB685477A (en) 1949-05-02 1950-05-02 Improvements in mine roof supports and the like

Country Status (1)

Country Link
GB (1) GB685477A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867303A (en) * 1954-02-05 1959-01-06 Bochumer Eisen Heintzmann Coupling for overlapping profile members

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2867303A (en) * 1954-02-05 1959-01-06 Bochumer Eisen Heintzmann Coupling for overlapping profile members

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