GB277484A - Improvements relating to pit props - Google Patents

Improvements relating to pit props

Info

Publication number
GB277484A
GB277484A GB2195426A GB2195426A GB277484A GB 277484 A GB277484 A GB 277484A GB 2195426 A GB2195426 A GB 2195426A GB 2195426 A GB2195426 A GB 2195426A GB 277484 A GB277484 A GB 277484A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
pit props
props
pit
foggo
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
GB2195426A
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 GB2195426A priority Critical patent/GB277484A/en
Publication of GB277484A publication Critical patent/GB277484A/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
    • E21D15/52—Extensible units located above or below standard props

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)
  • Joining Of Building Structures In Genera (AREA)

Abstract

277,484. Sopwith, S. F., and Foggo, M. J. Sept. 6, 1926. Mine props comprise a main section bar a and an upper sliding sleeve b which receives a wooden renewable end f, a transverse wedge g between the parts being provided for adjustment. Specifications 26795/04, 1814/15 and 121,660 are referred to.
GB2195426A 1926-09-06 1926-09-06 Improvements relating to pit props Expired GB277484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2195426A GB277484A (en) 1926-09-06 1926-09-06 Improvements relating to pit props

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2195426A GB277484A (en) 1926-09-06 1926-09-06 Improvements relating to pit props

Publications (1)

Publication Number Publication Date
GB277484A true GB277484A (en) 1927-09-22

Family

ID=10171537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2195426A Expired GB277484A (en) 1926-09-06 1926-09-06 Improvements relating to pit props

Country Status (1)

Country Link
GB (1) GB277484A (en)

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