GB719337A - An improved base or foot for profiled rails serving as metal pit props in mines - Google Patents

An improved base or foot for profiled rails serving as metal pit props in mines

Info

Publication number
GB719337A
GB719337A GB8547/52A GB854752A GB719337A GB 719337 A GB719337 A GB 719337A GB 8547/52 A GB8547/52 A GB 8547/52A GB 854752 A GB854752 A GB 854752A GB 719337 A GB719337 A GB 719337A
Authority
GB
United Kingdom
Prior art keywords
foot
mines
improved base
profiled rails
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
GB8547/52A
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.)
SAARLANDISCHE GES fur GRUBENAU
Original Assignee
SAARLANDISCHE GES fur GRUBENAU
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 SAARLANDISCHE GES fur GRUBENAU filed Critical SAARLANDISCHE GES fur GRUBENAU
Publication of GB719337A publication Critical patent/GB719337A/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
    • E21D15/54—Details of the ends of 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)
  • Eyeglasses (AREA)

Abstract

719,337. Pit props. SAARLANDISCHE GES. FUR GRUBENAUSBAU U TECHNIK. April 3, 1952 [April 3, 1951], No. 8547/52. Class 20 (2) A channel section pit prop 1 has a foot plate 2 whose shape coincides with the outline of the prop section and with a line joining the extremities thereof. The plate 2 may be arched upwardly.
GB8547/52A 1951-04-03 1952-04-03 An improved base or foot for profiled rails serving as metal pit props in mines Expired GB719337A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR719337X 1951-04-03

Publications (1)

Publication Number Publication Date
GB719337A true GB719337A (en) 1954-12-01

Family

ID=9091022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8547/52A Expired GB719337A (en) 1951-04-03 1952-04-03 An improved base or foot for profiled rails serving as metal pit props in mines

Country Status (1)

Country Link
GB (1) GB719337A (en)

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