FR1059300A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR1059300A
FR1059300A FR1059300DA FR1059300A FR 1059300 A FR1059300 A FR 1059300A FR 1059300D A FR1059300D A FR 1059300DA FR 1059300 A FR1059300 A FR 1059300A
Authority
FR
France
Prior art keywords
mine prop
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
Other languages
English (en)
Inventor
Jean-Gustave Chaigneau
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.)
TECH ET IND SOC ET
Original Assignee
TECH ET IND SOC ET
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 TECH ET IND SOC ET filed Critical TECH ET IND SOC ET
Application granted granted Critical
Publication of FR1059300A publication Critical patent/FR1059300A/fr
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
    • E21D15/50—Component parts or details of props
    • E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
    • 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/36—Telescopic props with parts held relatively to each other by friction or gripping by a tiltable collar surrounding one or both parts
FR1059300D 1952-06-28 1952-06-28 étançon de mine Expired FR1059300A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1059300T 1952-06-28

Publications (1)

Publication Number Publication Date
FR1059300A true FR1059300A (fr) 1954-03-23

Family

ID=9599003

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1059300D Expired FR1059300A (fr) 1952-06-28 1952-06-28 étançon de mine

Country Status (1)

Country Link
FR (1) FR1059300A (fr)

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