GB688393A - Improvements in or relating to supporting structures formed of relatively slidable frame elements - Google Patents

Improvements in or relating to supporting structures formed of relatively slidable frame elements

Info

Publication number
GB688393A
GB688393A GB11439/50A GB1143950A GB688393A GB 688393 A GB688393 A GB 688393A GB 11439/50 A GB11439/50 A GB 11439/50A GB 1143950 A GB1143950 A GB 1143950A GB 688393 A GB688393 A GB 688393A
Authority
GB
United Kingdom
Prior art keywords
clamp
relating
frame elements
structures formed
sections
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
GB11439/50A
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.)
REGIE DES MINES de la SARRE
Original Assignee
REGIE DES MINES de la SARRE
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 REGIE DES MINES de la SARRE filed Critical REGIE DES MINES de la SARRE
Publication of GB688393A publication Critical patent/GB688393A/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)
  • Bridges Or Land Bridges (AREA)

Abstract

688,393. Arch supports for mine galleries. REGIE DES MINES DE LA SARRE. May 8, 1950 [Jan. 17, 1950], No. 11439/50. Class 20(ii) An arch support for mine galleries comprises two arcuate channel-sections 3, 4, Fig. 2, slidable one within the other and secured together by a U-shaped clamp 1 embracing the sections 3, 4 and provided with apertures 6, 7 to receive wedge pins 5 which clamp the sections together. The base of the clamp 1, Fig. 1, is of arcuate form longitudinally and the apertures 6, 7 are so arranged that each wedge pin 5 exerts pressure along a radius of the arc of the base of the clamp.
GB11439/50A 1950-01-17 1950-05-08 Improvements in or relating to supporting structures formed of relatively slidable frame elements Expired GB688393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR688393X 1950-01-17

Publications (1)

Publication Number Publication Date
GB688393A true GB688393A (en) 1953-03-04

Family

ID=9026696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11439/50A Expired GB688393A (en) 1950-01-17 1950-05-08 Improvements in or relating to supporting structures formed of relatively slidable frame elements

Country Status (1)

Country Link
GB (1) GB688393A (en)

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