A Rudimentary Treatise on Coal and Coal Mining... |
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Page 118
... tub- bing in 11 lengths , extends for a total depth of 170 yards , and weighs about 600 tons in each pit . My friend , Mr. C. Tylden Wright , under whose supervision it was completed , informs me that the pressure at the bottom was ...
... tub- bing in 11 lengths , extends for a total depth of 170 yards , and weighs about 600 tons in each pit . My friend , Mr. C. Tylden Wright , under whose supervision it was completed , informs me that the pressure at the bottom was ...
Page 142
... tubs will be cheaply conveyed . But when , as most frequently happens , this advantage cannot be had , the coal has to be dragged or putted in sledges along the uneven floor in front of the face to the nearest outlet , and it hence ...
... tubs will be cheaply conveyed . But when , as most frequently happens , this advantage cannot be had , the coal has to be dragged or putted in sledges along the uneven floor in front of the face to the nearest outlet , and it hence ...
Page 147
... tubs , with 10 - inch wheels , and carrying 5 cwts . of coal . A horse generally , he states , takes twelve of these " corves " at a draught , and for a moderate day's work conveys the quantity of 150 tons the distance of 220 yards ...
... tubs , with 10 - inch wheels , and carrying 5 cwts . of coal . A horse generally , he states , takes twelve of these " corves " at a draught , and for a moderate day's work conveys the quantity of 150 tons the distance of 220 yards ...
Page 151
... tubs , or waggons , must neces- sarily be low , and the wheels small , but even in seams of ordinary height , the convenience of keeping the total weight so moderate that the putter can readily place his tub on the rails when it gets ...
... tubs , or waggons , must neces- sarily be low , and the wheels small , but even in seams of ordinary height , the convenience of keeping the total weight so moderate that the putter can readily place his tub on the rails when it gets ...
Page 152
... tub most generally used has an oak framing below , on which the bottom and sides , of inch or inch Fig . 23. Colliery tubs : 1 inch to 4 feet . oak , or other strong wood , are attached , with corner pieces of iron to strengthen them ...
... tub most generally used has an oak framing below , on which the bottom and sides , of inch or inch Fig . 23. Colliery tubs : 1 inch to 4 feet . oak , or other strong wood , are attached , with corner pieces of iron to strengthen them ...
Common terms and phrases
accidents amount anthracite applied Architect ARCHITECTURE Author beds Belgium bords bottom brattice Bridge C.E. Illustrated cage carboniferous carboniferous limestone cloth boards coal-measures coalfield collieries Construction containing cylinder depth Derbyshire districts drum Edition employed engine enlarged fathoms feet of coal feet thick field fire-damp Forest of Dean fossil fuel furnace gauze geological inches diameter inclined ironstone Lancashire length levels light lignite limestone long-wall lower LUDGATE HILL measures method miles millstone grit mineral mines mode modern Newcastle North Outfall Sewer passing pillars pits placed Plates Practical pumps quantity Railway raised RALPH TATE revised roads rocks rods roof rope Rudimentary Treatise safety lamps sandstone scale Science SCOTT BURN shaft shales side South Wales square miles steam stone strata surface Tables thin Timber tion tons tubs upper valuable ventilation volume waggons wedging wheels whilst wood Woodcuts workable yards
Popular passages
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