FR1255168A - Improvements in hydraulic support elements for mine clearance corridors - Google Patents

Improvements in hydraulic support elements for mine clearance corridors

Info

Publication number
FR1255168A
FR1255168A FR822663A FR822663A FR1255168A FR 1255168 A FR1255168 A FR 1255168A FR 822663 A FR822663 A FR 822663A FR 822663 A FR822663 A FR 822663A FR 1255168 A FR1255168 A FR 1255168A
Authority
FR
France
Prior art keywords
corridors
support elements
hydraulic support
mine clearance
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
FR822663A
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.)
Maschinenfabrik und Eisengiesserei A Beien
Original Assignee
Maschinenfabrik und Eisengiesserei A Beien
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 Maschinenfabrik und Eisengiesserei A Beien filed Critical Maschinenfabrik und Eisengiesserei A Beien
Priority to FR822663A priority Critical patent/FR1255168A/en
Application granted granted Critical
Publication of FR1255168A publication Critical patent/FR1255168A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/06—Endless track vehicles with tracks without ground wheels
    • B62D55/065—Multi-track vehicles, i.e. more than two tracks
    • 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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/087—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam
    • E21D23/088—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam by means of wheels, rollers, caterpillars, belts or worm screws
FR822663A 1960-03-28 1960-03-28 Improvements in hydraulic support elements for mine clearance corridors Expired FR1255168A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR822663A FR1255168A (en) 1960-03-28 1960-03-28 Improvements in hydraulic support elements for mine clearance corridors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR822663A FR1255168A (en) 1960-03-28 1960-03-28 Improvements in hydraulic support elements for mine clearance corridors

Publications (1)

Publication Number Publication Date
FR1255168A true FR1255168A (en) 1961-03-03

Family

ID=8728069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR822663A Expired FR1255168A (en) 1960-03-28 1960-03-28 Improvements in hydraulic support elements for mine clearance corridors

Country Status (1)

Country Link
FR (1) FR1255168A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359963A1 (en) * 1976-07-28 1978-02-24 Halbach & Braun WALKING SHORING FORMWORK
FR2432967A1 (en) * 1978-08-11 1980-03-07 Charbonnages De France ARTICULATED TRACK CHASSIS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359963A1 (en) * 1976-07-28 1978-02-24 Halbach & Braun WALKING SHORING FORMWORK
FR2432967A1 (en) * 1978-08-11 1980-03-07 Charbonnages De France ARTICULATED TRACK CHASSIS

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