FR1345213A - hydraulic prop for mines - Google Patents

hydraulic prop for mines

Info

Publication number
FR1345213A
FR1345213A FR915879A FR915879A FR1345213A FR 1345213 A FR1345213 A FR 1345213A FR 915879 A FR915879 A FR 915879A FR 915879 A FR915879 A FR 915879A FR 1345213 A FR1345213 A FR 1345213A
Authority
FR
France
Prior art keywords
mines
hydraulic prop
prop
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
FR915879A
Other languages
French (fr)
Inventor
Hans Joe Rheinbay
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
Priority to FR915879A priority Critical patent/FR1345213A/en
Priority claimed from GB4385762A external-priority patent/GB970917A/en
Application granted granted Critical
Publication of FR1345213A publication Critical patent/FR1345213A/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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
FR915879A 1962-11-19 1962-11-19 hydraulic prop for mines Expired FR1345213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR915879A FR1345213A (en) 1962-11-19 1962-11-19 hydraulic prop for mines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR915879A FR1345213A (en) 1962-11-19 1962-11-19 hydraulic prop for mines
GB4385762A GB970917A (en) 1962-11-20 1962-11-20 Hydraulic pit prop

Publications (1)

Publication Number Publication Date
FR1345213A true FR1345213A (en) 1963-12-06

Family

ID=26198462

Family Applications (1)

Application Number Title Priority Date Filing Date
FR915879A Expired FR1345213A (en) 1962-11-19 1962-11-19 hydraulic prop for mines

Country Status (1)

Country Link
FR (1) FR1345213A (en)

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