GB739164A - Improvements in or relating to flexible clamping devices for mine roof and like supports - Google Patents

Improvements in or relating to flexible clamping devices for mine roof and like supports

Info

Publication number
GB739164A
GB739164A GB28375/52A GB2837552A GB739164A GB 739164 A GB739164 A GB 739164A GB 28375/52 A GB28375/52 A GB 28375/52A GB 2837552 A GB2837552 A GB 2837552A GB 739164 A GB739164 A GB 739164A
Authority
GB
United Kingdom
Prior art keywords
nov
clamp
supports
piece
mine
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
GB28375/52A
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 T A BOCHU
Original Assignee
MARGOT VON LINSINGEN T A BOCHU
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 T A BOCHU filed Critical MARGOT VON LINSINGEN T A BOCHU
Publication of GB739164A publication Critical patent/GB739164A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/14Lining predominantly with metal
    • E21D11/18Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
    • E21D11/22Clamps 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)
  • Clamps And Clips (AREA)

Abstract

739,164. Arch supports for mine galleries. LINSINGEN, M. VON, [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO.]. Nov. 11, 1952 [Nov. 17, 1951], No. 28375/52. Addition to 685,477. Class 20 (2). [Also in Group XXII] The clamping device for mine arch supports described in the parent Specification is modified in that the strop 6, Figs. 3, 4, is shaped from a piece of hoop iron, the ends of which are folded to form the thickened flanges 9. The folded flange portions may be flat or, as shown, arched transversely and edge welded to the flange portions below to provide spring action to the clamp. The clamp is coupled by a bevelled portion 8a to the end of the inner arch member 1 so as to move with it under roof pressure. The piece of hoop iron is given a preliminary bending in the cold state, and the bending is completed and bolt holes punched in the flanges in a die under hot forging.
GB28375/52A 1951-11-17 1952-11-11 Improvements in or relating to flexible clamping devices for mine roof and like supports Expired GB739164A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE739164X 1951-11-17

Publications (1)

Publication Number Publication Date
GB739164A true GB739164A (en) 1955-10-26

Family

ID=6642977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28375/52A Expired GB739164A (en) 1951-11-17 1952-11-11 Improvements in or relating to flexible clamping devices for mine roof and like supports

Country Status (1)

Country Link
GB (1) GB739164A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129030A (en) * 1982-10-23 1984-05-10 Arbed Techno Gmbh Mine roof support clamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129030A (en) * 1982-10-23 1984-05-10 Arbed Techno Gmbh Mine roof support clamp

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