FR1559277A - - Google Patents

Info

Publication number
FR1559277A
FR1559277A FR1559277DA FR1559277A FR 1559277 A FR1559277 A FR 1559277A FR 1559277D A FR1559277D A FR 1559277DA FR 1559277 A FR1559277 A FR 1559277A
Authority
FR
France
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)
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
Application granted granted Critical
Publication of FR1559277A publication Critical patent/FR1559277A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0039—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by a strut or by a row of struts parallel to the working face
FR1559277D 1967-05-12 1968-03-08 Expired FR1559277A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
YU95367 1967-05-12

Publications (1)

Publication Number Publication Date
FR1559277A true FR1559277A (en) 1969-03-07

Family

ID=25552145

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1559277D Expired FR1559277A (en) 1967-05-12 1968-03-08

Country Status (1)

Country Link
FR (1) FR1559277A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2644649A1 (en) * 1976-10-02 1978-04-06 Gewerk Eisenhuette Westfalia SHIELD STRUCTURE
WO2018078047A1 (en) 2016-10-26 2018-05-03 Brunone Rene Belt conveyor and moving method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2644649A1 (en) * 1976-10-02 1978-04-06 Gewerk Eisenhuette Westfalia SHIELD STRUCTURE
WO2018078047A1 (en) 2016-10-26 2018-05-03 Brunone Rene Belt conveyor and moving method

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Legal Events

Date Code Title Description
ST Notification of lapse