The Steam-engine, Its History and Mechanism: Being Descriptions and Illustrations of the Stationary, Locomotive, and Marine Engine, for the Use of Schools and StudentsH. Ingram, 1854 - 189 páginas |
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Página vii
... equal to 1212 ° . The total amount of the indicated and latent heat at all temperatures is a " constant sum : " thus if the pressure is in- creased at which the steam is raised , so as to give a temperature of 300 ° , the latent heat is ...
... equal to 1212 ° . The total amount of the indicated and latent heat at all temperatures is a " constant sum : " thus if the pressure is in- creased at which the steam is raised , so as to give a temperature of 300 ° , the latent heat is ...
Página 7
... equal to its own weight , and to the same height from which it fell . A child's force , too , would be sufficient to turn a cock even of a large engine ; and the small noise made by this description of machinery , and its working day ...
... equal to its own weight , and to the same height from which it fell . A child's force , too , would be sufficient to turn a cock even of a large engine ; and the small noise made by this description of machinery , and its working day ...
Página 9
... equal to that of another worked by two horses ; and a tyro in mechanics would at first sight say , that no combina- tion of machinery could accomplish that work by one man which it re- quired the power of twelve men to do in another ...
... equal to that of another worked by two horses ; and a tyro in mechanics would at first sight say , that no combina- tion of machinery could accomplish that work by one man which it re- quired the power of twelve men to do in another ...
Página 16
... equal on both sides of the piston . By making a vacuum , as be- fore , beneath the piston , it would descend ; and thus , by repeating the process , the weights might be made to ascend and descend . The efficiency of a va- cuum to raise ...
... equal on both sides of the piston . By making a vacuum , as be- fore , beneath the piston , it would descend ; and thus , by repeating the process , the weights might be made to ascend and descend . The efficiency of a va- cuum to raise ...
Página 38
... equal to twenty horses , was , accord- ing to Bolton and Watt , only equal to ten ; thus giving the purchasers of the new engine an advantage of 100 per cent in value for no increase of cost . Thus placed before the public on terms so ...
... equal to twenty horses , was , accord- ing to Bolton and Watt , only equal to ten ; thus giving the purchasers of the new engine an advantage of 100 per cent in value for no increase of cost . Thus placed before the public on terms so ...
Otras ediciones - Ver todo
The Steam Engine: Its History and Mechanism, Being Descriptions and ... Robert Scott Burn Vista de fragmentos - 1875 |
Términos y frases comunes
actuated air-pump aperture apparatus applied arrangement atmosphere attached beam boiler bolted bottom carried centre Chacewater chimney cistern cock cold water condenser connected connecting-rod constructed contrivance crank cross-head cylinder Dalswinton Denis Papin diagram in fig diameter disc eccentric eccentric-rod effect expansion experiments feet fire-box flue force fuel Fulton furnace George Stephenson give high-pressure Illustrated London illustrative improvement inches interior introduced invention latent heat lever locomotive Lord Dundas lower machine means Mechanics and Mechanism motion moved ordinary Papin passing patent pipe piston piston-rod placed plate port practical present pressure principle pulley pump railway raised ratchet-wheels receiver reciprocating engine regulator revolving rotatory engine safety-valve Savery screw shaft slide space spindle steam steam is admitted steam-boat steam-engine steam-pipe stroke stuffing-box supply surface Symington Timothy Hackworth tion tubes upper side vacuum valve vapour vessel Watt Watt's weight wheel William Symington
Pasajes populares
Página 57 - ... and the arts, and in most of the branches of physical science, might perhaps have been conjectured ; but it could not have been inferred from his usual occupations, and probably is not generally known, that he was curiously learned in many branches of antiquity, metaphysics, medicine, and etymology, and perfectly at home in all the details of architecture, music, and law.
Página 57 - He had a certain quiet and grave humour, which ran through most of his conversation, and a vein of temperate jocularity, which gave infinite zest and effect to the condensed and inexhaustible information which formed its main staple and characteristic. There was a little air of affected testiness, and a tone of pretended rebuke and contradiction, with which he used to...
Página 31 - Papin's digester, and formed a species of steam-engine by fixing upon it a syringe, one-third of an inch diameter, with a solid piston, and furnished also with a cock to admit the steam from the digester, or shut it off at pleasure, as well as to open a communication from the inside of the syringe to the open air, by which the steam contained in the syringe might escape. When the communication between the digester and syringe was opened, the steam entered the syringe, and by its action upon the piston...
Página 6 - I have taken a piece of a whole cannon, whereof the end was burst, and filled it three quarters full of water, stopping and screwing up the broken end, as also the touch-hole ; and making a constant fire under it, within twenty-four hours it burst, and made a great crack...
Página 167 - A Description and Draught of a new-invented Machine, for carrying Vessels or Ships out of, or into, any Harbour, Port, or River, against Wind and Tide, or in a calm.
Página 57 - It is needless to say that with those vast resources his conversation was at all times rich and instructive in no ordinary degree. But it was, if possible, still more pleasing than wise, and had all the charms of familiarity, with all the substantial treasures of knowledge. No man could be more social in his spirit, less assuming or fastidious in his manners, or more kind and indulgent towards all who approached him. He rather liked to talk — at least in his latter years.
Página 7 - One vessel of water rarefied by fire driveth up forty of cold water ; and a man that tends the work is but to turn two cocks, that, one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
Página 7 - ... a way to make my vessels, so that they are strengthened by the force within them, and the one to fill after the other. I have seen the water run like a constant fountain-stream forty feet high ; one vessel of •water rarified by fire, driveth up forty of cold water.