ES318950A1 - Perfeccionamientos en los dispositivos de pilares de sustentaciën del tipo de dos cuadros en tandem - Google Patents

Perfeccionamientos en los dispositivos de pilares de sustentaciën del tipo de dos cuadros en tandem

Info

Publication number
ES318950A1
ES318950A1 ES0318950A ES318950A ES318950A1 ES 318950 A1 ES318950 A1 ES 318950A1 ES 0318950 A ES0318950 A ES 0318950A ES 318950 A ES318950 A ES 318950A ES 318950 A1 ES318950 A1 ES 318950A1
Authority
ES
Spain
Prior art keywords
frames
mine roof
advancing mine
roof supports
guides
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
ES0318950A
Other languages
English (en)
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.)
HOUILLERES DU BASSIN D AQUITAI
Original Assignee
HOUILLERES DU BASSIN D AQUITAI
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 HOUILLERES DU BASSIN D AQUITAI filed Critical HOUILLERES DU BASSIN D AQUITAI
Publication of ES318950A1 publication Critical patent/ES318950A1/es
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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
    • 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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
ES0318950A 1965-03-08 1965-10-26 Perfeccionamientos en los dispositivos de pilares de sustentaciën del tipo de dos cuadros en tandem Expired ES318950A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8293A FR1427377A (fr) 1965-03-08 1965-03-08 Perfectionnement aux dispositifs à piles de soutènement du type marchant à deux cadres en tandem

Publications (1)

Publication Number Publication Date
ES318950A1 true ES318950A1 (es) 1966-06-01

Family

ID=8573133

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0318950A Expired ES318950A1 (es) 1965-03-08 1965-10-26 Perfeccionamientos en los dispositivos de pilares de sustentaciën del tipo de dos cuadros en tandem

Country Status (3)

Country Link
ES (1) ES318950A1 (es)
FR (1) FR1427377A (es)
GB (1) GB1066130A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101644162B (zh) * 2009-08-04 2011-07-06 山西东华机械有限公司 自循环式超前液压支架

Also Published As

Publication number Publication date
FR1427377A (fr) 1966-02-04
GB1066130A (en) 1967-04-19

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