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FR1392995A - Hydraulically deployable telescopic mine prop with friction locking lock - Google Patents

Hydraulically deployable telescopic mine prop with friction locking lock

Info

Publication number
FR1392995A
FR1392995A FR973099A FR973099A FR1392995A FR 1392995 A FR1392995 A FR 1392995A FR 973099 A FR973099 A FR 973099A FR 973099 A FR973099 A FR 973099A FR 1392995 A FR1392995 A FR 1392995A
Authority
FR
France
Prior art keywords
locking lock
friction locking
mine prop
hydraulically deployable
telescopic 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
FR973099A
Other languages
French (fr)
Inventor
Karl Gerlach
Hans Gerlach
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
Priority claimed from DE1963G0037632 external-priority patent/DE1241777B/en
Application filed filed Critical
Priority to FR973099A priority Critical patent/FR1392995A/en
Application granted granted Critical
Publication of FR1392995A publication Critical patent/FR1392995A/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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • 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
    • E21D15/28—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)
FR973099A 1963-05-02 1964-04-30 Hydraulically deployable telescopic mine prop with friction locking lock Expired FR1392995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR973099A FR1392995A (en) 1963-05-02 1964-04-30 Hydraulically deployable telescopic mine prop with friction locking lock

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1963G0037632 DE1241777B (en) 1963-05-02 1963-05-02 Hydraulically extendable pit ram with friction lock
FR973099A FR1392995A (en) 1963-05-02 1964-04-30 Hydraulically deployable telescopic mine prop with friction locking lock

Publications (1)

Publication Number Publication Date
FR1392995A true FR1392995A (en) 1965-03-19

Family

ID=25978521

Family Applications (1)

Application Number Title Priority Date Filing Date
FR973099A Expired FR1392995A (en) 1963-05-02 1964-04-30 Hydraulically deployable telescopic mine prop with friction locking lock

Country Status (1)

Country Link
FR (1) FR1392995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027029A1 (en) * 1993-05-07 1994-11-24 Advanced Mining Software Limited Support prop

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027029A1 (en) * 1993-05-07 1994-11-24 Advanced Mining Software Limited Support prop
US5720581A (en) * 1993-05-07 1998-02-24 Dorbyl Limited Support prop

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