A Glossary of Terms Used in Coal MiningE. & F.N. Spon, 1883 - 296 sider |
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Side 4
... PIT . A pit - shaft used expressly for ventilation . AIR - SLIT ( Y. ) . A short head ( 1 ) driven more or less at right angles to , and between other two heads or levels for ventilation purposes . AIR - SOLLAR . A brattice carried ...
... PIT . A pit - shaft used expressly for ventilation . AIR - SLIT ( Y. ) . A short head ( 1 ) driven more or less at right angles to , and between other two heads or levels for ventilation purposes . AIR - SOLLAR . A brattice carried ...
Side 9
... pit bottom , and in helping it to slacken speed when the cage reaches the sur- face . It consists often of a bunch of heavy chains suspended in a shallow shaft , the chains resting upon ... pit or shaft in which. USED IN COAL MINING , ETC. 9.
... pit bottom , and in helping it to slacken speed when the cage reaches the sur- face . It consists often of a bunch of heavy chains suspended in a shallow shaft , the chains resting upon ... pit or shaft in which. USED IN COAL MINING , ETC. 9.
Side 10
William Stukeley Gresley. BALANCE - PIT . The pit or shaft in which a balance rises and falls . BALK . 1. A more or less sudden thinning out of a seam of coal , not unfre- in quently 100 yards width . See diagram , Fig . 7 . Fig . 7 . 2 ...
William Stukeley Gresley. BALANCE - PIT . The pit or shaft in which a balance rises and falls . BALK . 1. A more or less sudden thinning out of a seam of coal , not unfre- in quently 100 yards width . See diagram , Fig . 7 . Fig . 7 . 2 ...
Side 12
... pit - shaft , sitting in short loose pieces of chain attached to a hemp rope in a cluster , with their knees pointing inwards toward the centre of the shaft . There were usually two bants , the lower or bottom bant which was composed of ...
... pit - shaft , sitting in short loose pieces of chain attached to a hemp rope in a cluster , with their knees pointing inwards toward the centre of the shaft . There were usually two bants , the lower or bottom bant which was composed of ...
Side 17
... shaft at the inset in order to give plenty of room for running the trams past the shaft , and for changing them in ... PIT ( D. ) . Pits working argillaceous ironstone by the system called Bell - work , which see . BELL - SCREW or SCREW ...
... shaft at the inset in order to give plenty of room for running the trams past the shaft , and for changing them in ... PIT ( D. ) . Pits working argillaceous ironstone by the system called Bell - work , which see . BELL - SCREW or SCREW ...
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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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