FR1008513A - mine prop - Google Patents

mine prop

Info

Publication number
FR1008513A
FR1008513A FR1008513DA FR1008513A FR 1008513 A FR1008513 A FR 1008513A FR 1008513D A FR1008513D A FR 1008513DA FR 1008513 A FR1008513 A FR 1008513A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
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
Hans Gerlach
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
Application granted granted Critical
Publication of FR1008513A publication Critical patent/FR1008513A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
  • Braking Arrangements (AREA)
  • Clamps And Clips (AREA)
FR1008513D 1948-04-22 1948-04-22 mine prop Expired FR1008513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1008513T 1948-04-22

Publications (1)

Publication Number Publication Date
FR1008513A true FR1008513A (en) 1952-05-19

Family

ID=9567398

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1008513D Expired FR1008513A (en) 1948-04-22 1948-04-22 mine prop

Country Status (3)

Country Link
BE (1) BE485853A (en)
FR (1) FR1008513A (en)
GB (1) GB670287A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116145815B (en) * 2023-03-22 2023-09-01 兰州有色冶金设计研究院有限公司 Reinforced ice frame structure and construction method

Also Published As

Publication number Publication date
GB670287A (en) 1952-04-16
BE485853A (en) 1949-05-17

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