GB401369A - Improvements in or relating to pit props - Google Patents

Improvements in or relating to pit props

Info

Publication number
GB401369A
GB401369A GB3049133A GB3049133A GB401369A GB 401369 A GB401369 A GB 401369A GB 3049133 A GB3049133 A GB 3049133A GB 3049133 A GB3049133 A GB 3049133A GB 401369 A GB401369 A GB 401369A
Authority
GB
United Kingdom
Prior art keywords
flanges
relating
web
lateral ribs
pit props
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
GB3049133A
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Priority to GB3049133A priority Critical patent/GB401369A/en
Publication of GB401369A publication Critical patent/GB401369A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Metal Rolling (AREA)
  • Artificial Fish Reefs (AREA)

Abstract

401,369. Mine props. TOUSSAINT, H., 23, Waldmannstrasse, Lankwitz, Berlin, and BOCHUMER EISENHUTTE HEINTZMANN & CO., GES., Bochum, both in Germany. Feb. 9, 1932, No. 30491/33. Divided on 401,330. [Class 20 (ii).] A mine prop is formed from a channel-section bar having lateral ribs 1, and provided on each side with extensions 4 in the planes of the flanges to which structural members may be connected. The flanges are preferably perpendicular to the web, the breadth of the web is the same as the depth of the flanges, and the lateral ribs are rounded.
GB3049133A 1932-02-09 1932-02-09 Improvements in or relating to pit props Expired GB401369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3049133A GB401369A (en) 1932-02-09 1932-02-09 Improvements in or relating to pit props

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3049133A GB401369A (en) 1932-02-09 1932-02-09 Improvements in or relating to pit props

Publications (1)

Publication Number Publication Date
GB401369A true GB401369A (en) 1933-11-09

Family

ID=10308506

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3049133A Expired GB401369A (en) 1932-02-09 1932-02-09 Improvements in or relating to pit props

Country Status (1)

Country Link
GB (1) GB401369A (en)

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