A Glossary of Terms Used in Coal MiningE. & F.N. Spon, 1883 - 296 sider |
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Side 4
... stall in long - wall workings in which there is no current of air , or circula- tion of ventilation , but which is kept sweet by diffusion , and by the ingress and egress of tubs , men , & c . AIR - LEVEL . A level or air - way ( return ...
... stall in long - wall workings in which there is no current of air , or circula- tion of ventilation , but which is kept sweet by diffusion , and by the ingress and egress of tubs , men , & c . AIR - LEVEL . A level or air - way ( return ...
Side 10
... . , on the bank . 4. The whole or sometimes only one side or one end of a stall or working place underground . 5. ( C. ) A large heap or stack of mineral on surface . ' BANK - HEAD . The upper end of an inclined 10 A GLOSSARY OF TERMS.
... . , on the bank . 4. The whole or sometimes only one side or one end of a stall or working place underground . 5. ( C. ) A large heap or stack of mineral on surface . ' BANK - HEAD . The upper end of an inclined 10 A GLOSSARY OF TERMS.
Side 13
... stall , where solid ribs or barriers of coal are left in between a set or series of working places ; the width of such barriers being from 40 to 50 yards . See plan , Fig . 10 . BARRING . 1. The timbers in the workings for keep- ing up ...
... stall , where solid ribs or barriers of coal are left in between a set or series of working places ; the width of such barriers being from 40 to 50 yards . See plan , Fig . 10 . BARRING . 1. The timbers in the workings for keep- ing up ...
Side 24
... stalls are opened and worked . See plan , Fig . 17 . BOARD AND WALL . Board and Pillar . See BOARD - ROOM ( S. ) . A head- ing driven board ( 2 ) . BOARD - WAY'S COURSE ( N. ) . planes of cleavage of the coal . Fig . 17 . BOARD GATES ...
... stalls are opened and worked . See plan , Fig . 17 . BOARD AND WALL . Board and Pillar . See BOARD - ROOM ( S. ) . A head- ing driven board ( 2 ) . BOARD - WAY'S COURSE ( N. ) . planes of cleavage of the coal . Fig . 17 . BOARD GATES ...
Side 32
... experience has made him worth . BREAK OFF . To drive a thirl or bolt - hole , & c . , out of a gate - road , level , & c . BREAK UP ( M. ) . To cut away and remove the floor . 1 BREAST . 1. ( Pa . ) A stall 10 32 A GLOSSARY OF TERMS.
... experience has made him worth . BREAK OFF . To drive a thirl or bolt - hole , & c . , out of a gate - road , level , & c . BREAK UP ( M. ) . To cut away and remove the floor . 1 BREAST . 1. ( Pa . ) A stall 10 32 A GLOSSARY OF TERMS.
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apparatus bank bars beds blasting borehole boring rods brattice butty cage carried chain clay cloth Clunch coal measures coal seam Coal-field colliery constructed crown 8vo cylinder débris diameter drift driven drum edition empty engine plane explosion face fault feet fire fire-damp fixed floor furnace goaf ground haulage heading hole horse inbye inches inclined plane iron iron pyrites ironstone kind Kirving length load long-wall lower machinery minerals mines P. L. SIMMONDS pillar of coal pipe pit bottom pit-shaft plates prop pulley pumps raised rock roof running safety lamp sandstone seam of coal self-acting shale short side sinking pit slack solid coal sprags stall steam stone strata stratum surface thickness thin timber tool trams Treatise tubs underclay underground road upcast shaft ventilation vertical wagons wall wedging crib weight wheels winding engine winding rope wooden yards
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