FR1390105A - hydraulic mine prop - Google Patents

hydraulic mine prop

Info

Publication number
FR1390105A
FR1390105A FR972230A FR972230A FR1390105A FR 1390105 A FR1390105 A FR 1390105A FR 972230 A FR972230 A FR 972230A FR 972230 A FR972230 A FR 972230A FR 1390105 A FR1390105 A FR 1390105A
Authority
FR
France
Prior art keywords
mine prop
hydraulic mine
hydraulic
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
FR972230A
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.)
Kloeckner Werke AG
Original Assignee
Kloeckner Werke AG
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 to DEK47631A priority Critical patent/DE1189938B/en
Application filed by Kloeckner Werke AG filed Critical Kloeckner Werke AG
Priority to FR972230A priority patent/FR1390105A/en
Application granted granted Critical
Publication of FR1390105A publication Critical patent/FR1390105A/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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
FR972230A 1962-08-31 1964-04-24 hydraulic mine prop Expired FR1390105A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEK47631A DE1189938B (en) 1962-08-31 1962-08-31 Hydraulic pit ram
FR972230A FR1390105A (en) 1964-04-24 1964-04-24 hydraulic mine prop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR972230A FR1390105A (en) 1964-04-24 1964-04-24 hydraulic mine prop

Publications (1)

Publication Number Publication Date
FR1390105A true FR1390105A (en) 1965-02-19

Family

ID=8828632

Family Applications (1)

Application Number Title Priority Date Filing Date
FR972230A Expired FR1390105A (en) 1962-08-31 1964-04-24 hydraulic mine prop

Country Status (1)

Country Link
FR (1) FR1390105A (en)

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