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Mining |
Record 26 to 50 of 112 |
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Coal Weighing Machine, Automatic An illustration of an automatic coal weighing machine.... |
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Coal-cutting Machine "This machine consists essentially of a horizontal piston and cylinder engine fixed upon a platform carried upon four wheels, which are coupled together by side rods, so that on motion being communica... |
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Collecting Top "Prior to the introduction of the cup and cone, a form of tunnel-head in which no valve or cone exists was employed. A hollow annular chamber BB is built in the upper portion of the stack, communicat... |
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Condie's Hammer "Condie's Hammer." — The Encyclopedia Britannica, 1893... |
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Converter, Bessemer (Exterior) An illustration of the exterior of the Bessemer converter. The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron. The process is name... |
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Converter, Bessemer (Interior) An illustration of the interior of the Bessemer converter. The Bessemer process was the first inexpensive industrial process for the mass-production of steel from molten pig iron. The process is name... |
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Crane, Derrick A crane in which the postis supported by fixed stays in the rear and the jib is pivoted like the boom of a derrick.... |
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Crane, Derrick An illustration of a derrick crane.... |
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Cripple Creek Mine The gold mining camp of Cripple Creek, Colorado.... |
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Danks Furnace "Danks rotary Puddling Furnace. The feel is burnt in an ordinary fireplace, a blast B being admitted under the bars and another over them A, level with the firing hole, so that by regulating the two ... |
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Darlington Drill Darlington's Rock Drill ... |
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Darlington Drill Darlington's rock drill ... |
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Derrick An illustration of an iron derrick, a lifting device composed of one mast or pole which is hinged freely at the bottom. It is controlled by lines (usually four of them) powered by some means such as m... |
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Dormoy's Rabble "Dormoy's rabble differs from others of this class in being worked by rotation like a hair-brushing machine; the tool being made to revolve very rapidly (300 to 500 turns per minute for white iron and... |
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Dormoy's Rabble "Dormoy's rabble differs from others of this class in being worked by rotation like a hair-brushing machine; the tool being made to revolve very rapidly (300 to 500 turns per minute for white iron and... |
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Drill A Little Champion Rock Drill... |
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Drill A Little Champion Rock Drill... |
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Feather and Tare "Two pieces of metal placed in a hole in a stone which is to be split a wedge-shaped key or plug being driven between them for this purpose." -Whitney, 1911... |
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Ferrie's Furnace "A peculiar furnace, known as Ferrie's self-coking furnace after the name of its inventor, in which raw coal is employed, has been used at the Monkland Iron Works and elsewhere during the last few yea... |
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Forno-Convertisseur "Ponsard Furnace or Forno-Convertisseur. This apparatus is essentially a combination of the Pernot furnace with the Bessemer converter, consisting of a hearth movable about an obliquely vertical axis... |
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Furnace "The section and ground plan of one of the older forms of open-mouthed furnaces used at Dowlais (Truran), consisting of a heavy mass of mascury, square at base, strongly braced together with iron tie-... |
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Furnace "The more modern furnaces are constructed like this, but the masonry at the base is still less massive, so that, instead of there being four distinct tuyere houses, the separating walls of the houses ... |
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Furnace Hoist "Gjers's Furnace Hoist. I. Section. II. Elevation. III. and IV. Plans." — The Encyclopedia Britannica, 1893... |
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Furnace, Blast A blast furnace is a type of metallurgical furnace used for smelting to produce metals, generally iron. In a blast furnace, fuel and ore are continuously supplied through the top of the furnace, whil... |
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Furnace, Reverberatory A reverberatory furnace is a metallurgical or process furnace that isolates the material being processed from contact with the fuel, but not from contact with combustion gases. The term reverberation ... |
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