A Glossary of Terms Used in Coal MiningE. & F.N. Spon, 1883 - 296 sider |
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Side 3
... roadway used for the special purpose of ventilation . AIR - CROSSING . A bridge which carries one air - course over ... Roadways or levels driven in the coal seam parallel with a main level , chiefly for the purpose of ventilation or for ...
... roadway used for the special purpose of ventilation . AIR - CROSSING . A bridge which carries one air - course over ... Roadways or levels driven in the coal seam parallel with a main level , chiefly for the purpose of ventilation or for ...
Side 4
William Stukeley Gresley. AIR - GATES ( M. ) . Underground roadways used prin- cipally for ventilative purposes . AIR - HEAD . See Air - way . AIRLESS END . The extremity of a stall in long - wall workings in which there is no current of ...
William Stukeley Gresley. AIR - GATES ( M. ) . Underground roadways used prin- cipally for ventilative purposes . AIR - HEAD . See Air - way . AIRLESS END . The extremity of a stall in long - wall workings in which there is no current of ...
Side 5
... roadway . ARLES OR EARLES ( N. ) . Earnest money formerly allowed to colliers at the time of hiring them . ASCENSIONAL VENTILATION . The arrangement of the ventilating currents in such - wise that the heated air shall continuously rise ...
... roadway . ARLES OR EARLES ( N. ) . Earnest money formerly allowed to colliers at the time of hiring them . ASCENSIONAL VENTILATION . The arrangement of the ventilating currents in such - wise that the heated air shall continuously rise ...
Side 6
... , and attending and keep- ing in order the roadways , & c . BACK - CASING . A wall or lining of dry bricks used in sinking through drift deposits , the permanent walling being built up within it . In the north of 6 A GLOSSARY OF TERMS.
... , and attending and keep- ing in order the roadways , & c . BACK - CASING . A wall or lining of dry bricks used in sinking through drift deposits , the permanent walling being built up within it . In the north of 6 A GLOSSARY OF TERMS.
Side 21
... roadways of a colliery . 2. To cut or bring down coal , rocks , & c . , by the explosion of gunpowder , dynamite , & c ... roadway not in use either for drawing coals , & c . , ven- tilation , or for travelling along , having stoppings ...
... roadways of a colliery . 2. To cut or bring down coal , rocks , & c . , by the explosion of gunpowder , dynamite , & c ... roadway not in use either for drawing coals , & c . , ven- tilation , or for travelling along , having stoppings ...
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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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