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.)
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Bennes Marrel SA
Original Assignee
Bennes Marrel SA
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Publication date
Application filed by Bennes Marrel SAfiledCriticalBennes Marrel SA
Priority to FR7634542ApriorityCriticalpatent/FR2370852A1/fr
Publication of FR2370852A1publicationCriticalpatent/FR2370852A1/fr
Application grantedgrantedCritical
Publication of FR2370852B3publicationCriticalpatent/FR2370852B3/fr
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
E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
E—FIXED CONSTRUCTIONS
E21—EARTH OR ROCK 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
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Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
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Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
Architecture
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Structural Engineering
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Attitude Control For Articles On Conveyors
(AREA)
Control Of Conveyors
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FR7634542A1976-11-101976-11-10Butees de recentrage d'une pile de soutenement marchant de mines
GrantedFR2370852A1
(fr)