A Treatise on the Progressive Improvement and Present State of the Manufactures in Metal, Volum 1Longman, Rees, Orme, Brown, and Green, 1831 - 341 pàgines |
Altres edicions - Mostra-ho tot
A Treatise on the Progressive Improvement and Present State of the ..., Volum 1 John Holland Visualització completa - 1881 |
A Treatise on the Progressive Improvement and Present State of the ..., Volum 1 John Holland Visualització completa - 1831 |
A Treatise on the Progressive Improvement & Present State of the ... John Holland Visualització completa - 1853 |
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anchor ancient anvil appears applied axis bar iron blades blast blister steel bridge carbon carbonaceous cast iron cast steel chain charcoal chisel citizen Raoul coal coke common considerable consists contrivance cutter Damascus steel degree edge English file engraving experiment feet fire forge fracture furnace grinding grooves ground hammer hard hardening heat horses inches ingenious iron and steel ironstone length lever machinery maker malleable iron manganese manner manufacture material means melted metal method mould nails natural steel obtained operation passing patent perfect pieces pig metal placed plates produced puddling furnace purpose quantity rails ratchet-wheel rolled rollers sand screw shape shear Sheffield shoe side silver sir Thomas Frankland smelting soft sort specific gravity stone stroke substance sufficient surface temper thickness tion tons weight welding wheel whole wood wootz workmen wrought wrought iron
Passatges populars
Pàgina 153 - Now there was no smith found throughout all the land of Israel : for the Philistines said, Lest the Hebrews make them swords or spears...
Pàgina x - And a river went out of Eden to water the garden ; and from thence it was parted, and became into four heads. 11 The name of the first is Pison : that is it which compasseth the whole land of Havilah, where there is gold; 12 And the gold of that land is good : there is bdellium and the onyx stone.
Pàgina 153 - So it came to pass in the day of battle, that there was neither sword nor spear found in the hand of any of the people that were with Saul and Jonathan: but with Saul and with Jonathan his son was there found...
Pàgina 191 - I was surprised at the prodigious number of blacksmiths' shops upon the road; and could not conceive how a country, though populous, could support so many people of the same occupation. In some of these shops I observed one or more females...
Pàgina 157 - With open mouth swallowing a tailor's news ; Who with his shears and measure in his hand, Standing on slippers, (which his nimble haste Had falsely thrust upon contrary feet,) Told of many thousand warlike French That were embattel'd and rank'd in Kent.
Pàgina 249 - At other times, when silver and steel have been very long in a state of perfect fusion, the sides of the crucible, and frequently the top also, are covered with a fine and beautiful dew of minute globules of silver ; this effect can be produced at pleasure. At first we were not successful in...
Pàgina 28 - Every six days they call a founday, in which space they make eight tun of iron, if you divide the whole sum of iron made by the foundays : for at first they make less in a founday, at last more. The hearth by the force of the fire, continually blown, grows wider and wider, so that...
Pàgina 104 - ... feet broad, with a handrail on one side, and planked in such a manner, that the traveller experiences all the tremulous motion of the chain, and sees himself suspended over a roaring gulph, on an agitated and restless gangway, to which few strangers dare trust themselves.
Pàgina 151 - On no malleable iron railway has oxydization or rusting taken place to any important extent. I am inclined to think that this effect is prevented on the bearing surfaces of much used railways, by the pressure upon them. To account for their extraordinary freedom from rust, it is almost necessary to suppose, that some diminution takes place in the chemical affinity of the iron for the oxygen or carbonic acid. The continual smoothness in which they are kept, by the contact of the wheels, has the usual...
Pàgina 27 - The hearth, or bottom of the furnace, is made of sandstone, and the sides round, to the height of a yard, or thereabout ; the rest of the furnace is lined up to the top with brick. When they begin upon a new furnace they put fire for a day or two before they begin to blow.