FR1354734A - Device for further increasing the load of hydraulic mine props - Google Patents

Device for further increasing the load of hydraulic mine props

Info

Publication number
FR1354734A
FR1354734A FR933916A FR933916A FR1354734A FR 1354734 A FR1354734 A FR 1354734A FR 933916 A FR933916 A FR 933916A FR 933916 A FR933916 A FR 933916A FR 1354734 A FR1354734 A FR 1354734A
Authority
FR
France
Prior art keywords
load
further increasing
mine props
hydraulic mine
hydraulic
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
FR933916A
Other languages
French (fr)
Inventor
Karl-Maria Groetschel
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 DEG34969A external-priority patent/DE1230390B/en
Application filed filed Critical
Priority to FR933916A priority Critical patent/FR1354734A/en
Application granted granted Critical
Publication of FR1354734A publication Critical patent/FR1354734A/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

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)
FR933916A 1962-05-12 1963-05-07 Device for further increasing the load of hydraulic mine props Expired FR1354734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR933916A FR1354734A (en) 1962-05-12 1963-05-07 Device for further increasing the load of hydraulic mine props

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG34969A DE1230390B (en) 1962-05-12 1962-05-12 Hydraulic pit ram
FR933916A FR1354734A (en) 1962-05-12 1963-05-07 Device for further increasing the load of hydraulic mine props

Publications (1)

Publication Number Publication Date
FR1354734A true FR1354734A (en) 1964-03-06

Family

ID=25978423

Family Applications (1)

Application Number Title Priority Date Filing Date
FR933916A Expired FR1354734A (en) 1962-05-12 1963-05-07 Device for further increasing the load of hydraulic mine props

Country Status (1)

Country Link
FR (1) FR1354734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360745A2 (en) * 1976-08-02 1978-03-03 Banyaszati Kutato Intezet Telescopic hydraulic pit prop - has cap fitting over intermediate block with rubber insert to permit eccentricity of load

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360745A2 (en) * 1976-08-02 1978-03-03 Banyaszati Kutato Intezet Telescopic hydraulic pit prop - has cap fitting over intermediate block with rubber insert to permit eccentricity of load

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