FR593280A - étançon de mine combiné - Google Patents

étançon de mine combiné

Info

Publication number
FR593280A
FR593280A FR593280DA FR593280A FR 593280 A FR593280 A FR 593280A FR 593280D A FR593280D A FR 593280DA FR 593280 A FR593280 A FR 593280A
Authority
FR
France
Prior art keywords
mine prop
combined mine
combined
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
English (en)
Inventor
Wilhelm Wagner
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 FR593280A publication Critical patent/FR593280A/fr
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

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)
FR593280D 1924-08-18 1924-08-18 étançon de mine combiné Expired FR593280A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR593280T 1924-08-18

Publications (1)

Publication Number Publication Date
FR593280A true FR593280A (fr) 1925-08-20

Family

ID=8965372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR593280D Expired FR593280A (fr) 1924-08-18 1924-08-18 étançon de mine combiné

Country Status (1)

Country Link
FR (1) FR593280A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119373122A (zh) * 2024-12-30 2025-01-28 大连艾赛机械设备有限公司 一种土木施工支护装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119373122A (zh) * 2024-12-30 2025-01-28 大连艾赛机械设备有限公司 一种土木施工支护装置

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