GB438833A - Improvements in or relating to roof-support in mines - Google Patents

Improvements in or relating to roof-support in mines

Info

Publication number
GB438833A
GB438833A GB3704434A GB3704434A GB438833A GB 438833 A GB438833 A GB 438833A GB 3704434 A GB3704434 A GB 3704434A GB 3704434 A GB3704434 A GB 3704434A GB 438833 A GB438833 A GB 438833A
Authority
GB
United Kingdom
Prior art keywords
mines
roof
relating
support
webs
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
GB3704434A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3704434A priority Critical patent/GB438833A/en
Publication of GB438833A publication Critical patent/GB438833A/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
    • E21D11/34—Joints between vertical props and horizontal top bars

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)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

438,833. Brackets. McDONALD, J., 32, St. Mary's Street, St. Andrews, Fifeshire. Dec. 27, 1934, No. 37044. [Class 52 (v)] [See also Group X] A bracket comprises vertical and horizontal webs A, B, respectively, and a reinforcing rib C disposed at rightangles to the webs, the margins of the vertical web being perforated to receive bolts whereby the bracket may be secured to an upright by a clamping plate E.
GB3704434A 1934-12-27 1934-12-27 Improvements in or relating to roof-support in mines Expired GB438833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3704434A GB438833A (en) 1934-12-27 1934-12-27 Improvements in or relating to roof-support in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3704434A GB438833A (en) 1934-12-27 1934-12-27 Improvements in or relating to roof-support in mines

Publications (1)

Publication Number Publication Date
GB438833A true GB438833A (en) 1935-11-25

Family

ID=10393285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3704434A Expired GB438833A (en) 1934-12-27 1934-12-27 Improvements in or relating to roof-support in mines

Country Status (1)

Country Link
GB (1) GB438833A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517286A (en) * 1946-07-18 1950-08-01 Lewis F Cooper Jack support
GB2188533A (en) * 1986-03-03 1987-10-07 Derek Victor Beamish Shelf bracket
GB2329108A (en) * 1998-11-18 1999-03-17 David Jarvis Plant holder bracket mounted on a fence post
CN113027207A (en) * 2021-03-12 2021-06-25 中国建筑一局(集团)有限公司 Detachable beam frame for supporting squat silo steel platform

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517286A (en) * 1946-07-18 1950-08-01 Lewis F Cooper Jack support
GB2188533A (en) * 1986-03-03 1987-10-07 Derek Victor Beamish Shelf bracket
GB2329108A (en) * 1998-11-18 1999-03-17 David Jarvis Plant holder bracket mounted on a fence post
CN113027207A (en) * 2021-03-12 2021-06-25 中国建筑一局(集团)有限公司 Detachable beam frame for supporting squat silo steel platform
CN113027207B (en) * 2021-03-12 2022-09-16 中国建筑一局(集团)有限公司 Detachable beam frame for supporting squat silo steel platform

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