FR1074282A - mine stanchion - Google Patents

mine stanchion

Info

Publication number
FR1074282A
FR1074282A FR1074282DA FR1074282A FR 1074282 A FR1074282 A FR 1074282A FR 1074282D A FR1074282D A FR 1074282DA FR 1074282 A FR1074282 A FR 1074282A
Authority
FR
France
Prior art keywords
stanchion
mine
mine stanchion
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
Other languages
French (fr)
Inventor
John Handley
Jack Nixon Browne
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 filed Critical
Application granted granted Critical
Publication of FR1074282A publication Critical patent/FR1074282A/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
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/24—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with axial screw-and-nut, rack-and-worm, or like mechanism
    • E21D15/26—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with axial screw-and-nut, rack-and-worm, or like mechanism with screw, worm, or the like, not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure

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)
FR1074282D 1952-04-02 1953-04-02 mine stanchion Expired FR1074282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1074282X 1952-04-02

Publications (1)

Publication Number Publication Date
FR1074282A true FR1074282A (en) 1954-10-04

Family

ID=10872085

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1074282D Expired FR1074282A (en) 1952-04-02 1953-04-02 mine stanchion

Country Status (1)

Country Link
FR (1) FR1074282A (en)

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