FR1247864A - Improvements to hydraulic props for mines - Google Patents

Improvements to hydraulic props for mines

Info

Publication number
FR1247864A
FR1247864A FR818356A FR818356A FR1247864A FR 1247864 A FR1247864 A FR 1247864A FR 818356 A FR818356 A FR 818356A FR 818356 A FR818356 A FR 818356A FR 1247864 A FR1247864 A FR 1247864A
Authority
FR
France
Prior art keywords
mines
hydraulic props
props
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
FR818356A
Other languages
French (fr)
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.)
Becorit Grubenausbau GmbH
Original Assignee
Becorit Grubenausbau GmbH
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 Becorit Grubenausbau GmbH filed Critical Becorit Grubenausbau GmbH
Application granted granted Critical
Publication of FR1247864A publication Critical patent/FR1247864A/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)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
FR818356A 1959-02-14 1960-02-12 Improvements to hydraulic props for mines Expired FR1247864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB52121A DE1173418B (en) 1959-02-14 1959-02-14 Hydraulic pit ram

Publications (1)

Publication Number Publication Date
FR1247864A true FR1247864A (en) 1960-12-02

Family

ID=6969780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR818356A Expired FR1247864A (en) 1959-02-14 1960-02-12 Improvements to hydraulic props for mines

Country Status (3)

Country Link
BE (1) BE587604A (en)
DE (1) DE1173418B (en)
FR (1) FR1247864A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE804199C (en) * 1949-07-14 1951-04-16 Gutehoffnungshuette Oberhausen Hydraulic or pneumatic-hydraulic pit ram
DE1046545B (en) * 1957-03-04 1958-12-18 Alexander Schmidt Dr Ing Hydraulic pit ram

Also Published As

Publication number Publication date
DE1173418B (en) 1964-07-09
BE587604A (en) 1960-08-16

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