FR886732A - prop for mines or other similar applications - Google Patents

prop for mines or other similar applications

Info

Publication number
FR886732A
FR886732A FR886732DA FR886732A FR 886732 A FR886732 A FR 886732A FR 886732D A FR886732D A FR 886732DA FR 886732 A FR886732 A FR 886732A
Authority
FR
France
Prior art keywords
mines
prop
similar applications
applications
similar
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
French (fr)
Inventor
Andre Barbier
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.)
Loir & Cie
Original Assignee
Loir & Cie
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 Loir & Cie filed Critical Loir & Cie
Application granted granted Critical
Publication of FR886732A publication Critical patent/FR886732A/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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
    • 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
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
FR886732D 1942-10-12 1942-10-12 prop for mines or other similar applications Expired FR886732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR886732T 1942-10-12

Publications (1)

Publication Number Publication Date
FR886732A true FR886732A (en) 1943-10-22

Family

ID=9375929

Family Applications (1)

Application Number Title Priority Date Filing Date
FR886732D Expired FR886732A (en) 1942-10-12 1942-10-12 prop for mines or other similar applications

Country Status (1)

Country Link
FR (1) FR886732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967104C (en) * 1948-10-02 1957-10-03 Becorit Grubenausbau Gmbh Box-shaped inner stamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967104C (en) * 1948-10-02 1957-10-03 Becorit Grubenausbau Gmbh Box-shaped inner stamp

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