FR917644A - Machine perfectionnée pour l'exploitation de mines comprenant une tête de fendage e n forme de coin et une chaîne porte-couteaux sans fin
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Machine perfectionnée pour l'exploitation de mines comprenant une tête de fendage e n forme de coin et une chaîne porte-couteaux sans fin
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Mavor and Coulson Ltd
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Mavor and Coulson Ltd
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Application filed by Mavor and Coulson LtdfiledCriticalMavor and Coulson Ltd
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Publication of FR917644ApublicationCriticalpatent/FR917644A/fr
E21C27/00—Machines which completely free the mineral from the seam
E21C27/10—Machines which completely free the mineral from the seam by both slitting and breaking-down
E21C27/14—Machines which completely free the mineral from the seam by both slitting and breaking-down breaking-down effected by force or pressure applied to side of slit, e.g. by wedges
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Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Mechanical Engineering
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
FR917644D1942-12-041945-09-28Machine perfectionnée pour l'exploitation de mines comprenant une tête de fendage e n forme de coin et une chaîne porte-couteaux sans fin
ExpiredFR917644A
(fr)