Patents for inventions. Abridgments of specifications, Volume 321858 |
Common terms and phrases
66 Printed air or steam alloys annealing apparatus application for Letters bar iron blast furnace blister steel bottom calcined carbon carbonaceous carbonaceous matter cast iron cast steel chamber charcoal charge cinder coal coke conjoined series copper crucibles currents of air cylinder decarbonized drawings describe employed enlarged series fire flues fluid metal fluxes forge fuel gases hammer hearth heated Improvements introduced invention consists invention relates iron and steel JOHN Letters Patent lime London Journal Newton's machinery Magazine malleable iron manganese manufacture of iron Mechanics melted mixed mixture mode molten moulds obtained October ordinary oxide oxide of iron passed Patent Journal pig iron pipes piston placed plates potash pots produced proportions Provisional Specification puddling furnace refining Repertory of Arts retorts reverberatory furnace rollers rolling scoria shaft shape slag smelting Specification and drawings Specification describes suitable surfaces tubes tuyeres vessel welding WILLIAM wrought iron zinc
Popular passages
Page 48 - I propose to make an improved quality of cast vOL. Xv. P steel, by introducing into a crucible, bars of common blistered steel, broken as usual into fragments or mixtures of cast and malleable iron, or malleable iron and carbonaceous matters along with from one to three per cent, of their weight of carburet of manganese...
Page 201 - ... of an ordinary construction. By thus subjecting the granules of iron in presence of the sparry iron ore to a melting heat, the enwrapping oxides will first effect a partial decarbonization of the granulated iron, which decarbonization...
Page 11 - Cort claimed a reverberatory furnace having a concave bottom, into which the fluid metal is run from the smelting furnace. This furnace was heated by coal. He showed how the cast metal could be rendered malleable by a process of stirring with rabbles, or puddling, while ex. posed to the oxidizing current of flame and air. He describes the stirring of the metal till ebullition ceases, and its collection...
Page 114 - A charge of about 4 cwt. of grey pig iron is ' melted in the puddling furnace in the ordinary way, with a large quantity of silicate of iron or other metallic oxide.
Page 31 - Neilson, for an improved application of air to produce heat in fires, forges, and furnaces...
Page 2 - ... the ashes of wood and other vegetables, all kinds of glass and sandever, common salt and rock salt, argile, kelp, and pot ash, slegg or cinders from iron furnaces and forges, proportionable parts of the said ingredients being put into fusion or melted with pig, sow, or other brittle iron, which will make the like change as charcoal does in the fire called the finery in common forges, and will render the same into a state of malleability, as to bear the stroke of the hammer, to draw it into barrs...
Page 44 - ... furnishing oxygen, which disengages the carbon contained in the pig or crude iron, and in supplying oxide of iron, which, combining with earthy impurities contained in such pig or crude iron, forms the fusible compound called cinder. One of the objects of my invention is to supply a cheap material, to be used as a substitute for hammer slag in puddling pig or crude iron.
Page 230 - My invention consists in obtaining crude or grey pig iron, bard white iron, and steel or malleable iron, direct from carbonaceous iron ores, or from any mixtures of carbonaceous ores with oxides or other ores of iron, by the application thereto of a blast of hot or cold air or steam, or of any other gaseous matter containing or capable of evolving oxygen or hydrogen gas, and without...