The Manufacture of Iron, in All Its Various Branches: ... to which is Added an Essay on the Manufacture of Steel |
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Page 21
... pounds , namely , iron pyrites , carbonates , red oxides , sulphates , & c . The fibrous limonite , or brown hematite , contains sometimes beauti- ful crystals of the hydrate , and is known under the name of pipe ore , brown ore , and ...
... pounds , namely , iron pyrites , carbonates , red oxides , sulphates , & c . The fibrous limonite , or brown hematite , contains sometimes beauti- ful crystals of the hydrate , and is known under the name of pipe ore , brown ore , and ...
Page 55
... pounds weight , and is used to break larger pieces of rock or mine . Fig . 11 . Miner's shovel . Fig . 11 represents a miner's shovel , which is pointed , so as to pene- trate the coarse and hard fragments of minerals and rocks . All ...
... pounds weight , and is used to break larger pieces of rock or mine . Fig . 11 . Miner's shovel . Fig . 11 represents a miner's shovel , which is pointed , so as to pene- trate the coarse and hard fragments of minerals and rocks . All ...
Page 58
... rock is done in an improved Chinese manner , by means of a hemp rope of two inches in diameter , and a wrought or cast iron drill of from two to five hundred pounds weight : the motion to the drill is given 58 MANUFACTURE OF IRON .
... rock is done in an improved Chinese manner , by means of a hemp rope of two inches in diameter , and a wrought or cast iron drill of from two to five hundred pounds weight : the motion to the drill is given 58 MANUFACTURE OF IRON .
Page 59
... pounds weight : the motion to the drill is given by a small steam- engine . This arrangement is a very good one , for it penetrates the earth rapidly , and by it the expense of a two and a half inch hole very seldom exceeds one dollar ...
... pounds weight : the motion to the drill is given by a small steam- engine . This arrangement is a very good one , for it penetrates the earth rapidly , and by it the expense of a two and a half inch hole very seldom exceeds one dollar ...
Page 63
... pounds of ore . The timbering of shafts , as well as that of drifts , varies in form , according to the nature and locality of the ground which they penetrate , and the purposes . which they are meant to serve . The shafts to be secured ...
... pounds of ore . The timbering of shafts , as well as that of drifts , varies in form , according to the nature and locality of the ground which they penetrate , and the purposes . which they are meant to serve . The shafts to be secured ...
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Common terms and phrases
advantage alkali anthracite furnaces applied ashes bar iron bituminous blast furnace blast machine boshes bottom bushels calcareous carbonic acid cast iron cent charcoal forge charcoal furnaces charges charring chemical cinder clay coke furnaces cold cold-short color combine contains cylinder diameter dust employed feet fibrous iron fire brick flux foreign matter fuel fusible gray iron grooves hammer hearth heat hot blast hydrogen impurities inches interior kind less lime limestone magnesia magnetic manganese melt mixed mixture nace operations oven oxide oxide of iron oxygen phosphorus pig iron pig metal pile pipes plate potash pounds present produce protoxide of iron puddling furnace quantity rail refractory reheating furnace result roasted rollers rough shaft sheet iron silex silicious silicon smelted square stack steel stone coal strong sufficiently sulphur sulphurets temperature thick tion turf tuyere vein welding white iron white metal wood workmen wrought iron
Popular passages
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