Stuart's Descriptive History of the Steam EngineWhittaker, Treacher, and Arnot, 1829 - 249 pages |
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Page 44
... flow of steam from the boiler is shut off by the cock g ; a vacuum being thus pro- duced in the receiver , the pressure of the atmo- sphere raises the water in the reservoir up the pipe a , and fills the receiver b . The cock f is now ...
... flow of steam from the boiler is shut off by the cock g ; a vacuum being thus pro- duced in the receiver , the pressure of the atmo- sphere raises the water in the reservoir up the pipe a , and fills the receiver b . The cock f is now ...
Page 51
... flow into the pump - cylinder i , which we may sup- pose to be nearly filled with water . The steam presses by its elasticity on the floater n , and de- presses it in the cylinder i , forcing the water , which is beneath it , through ...
... flow into the pump - cylinder i , which we may sup- pose to be nearly filled with water . The steam presses by its elasticity on the floater n , and de- presses it in the cylinder i , forcing the water , which is beneath it , through ...
Page 52
... flows from the boiler into the cylinder , and depresses the floater h , raising the water under it into the reservoir r , r ; and when it is depressed to the situation N , the cock c is shut , and m and d are again opened , to perform ...
... flows from the boiler into the cylinder , and depresses the floater h , raising the water under it into the reservoir r , r ; and when it is depressed to the situation N , the cock c is shut , and m and d are again opened , to perform ...
Page 62
... flow from the reservoir g , through the pipe f , into the outer cylinder z , z : this cools the cylinder a , containing the steam , which con- denses the included vapour , and forms a vacuum under the piston s . The pressure of the ...
... flow from the reservoir g , through the pipe f , into the outer cylinder z , z : this cools the cylinder a , containing the steam , which con- denses the included vapour , and forms a vacuum under the piston s . The pressure of the ...
Page 62
... flows from the reservoir g into ; the steam under the piston is again condensed . The pressure of the atmosphere a second time having the preponderance , the piston is depressed , and the pump rod at the opposite end of the lever beam ...
... flows from the reservoir g into ; the steam under the piston is again condensed . The pressure of the atmosphere a second time having the preponderance , the piston is depressed , and the pump rod at the opposite end of the lever beam ...
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Expressions et termes fréquents
admitted affusion air-pump apparatus applied Arthur Woolfe Atmospheric Engine attached axis beam boiler bottom cistern cock cold water communication condense the steam condensing Engine construction contrivance counterpoise crank Desaguliers diameter elasticity Elector of Hesse employed engraving equal erected expansion experiment feet Figure filled fire fixed fly-wheel Furnace gine heat honour horizontal Hornblower improvements inches ingenious injection invention inventor Jacob Perkins James Watt Jonathan Hornblower lever lever-beam London machine machinery Marquis Marquis of Worcester Matthew Murray means mechanism mode moving Newcomen operation Papin parallel motion patent pipe piston piston-rod placed plug-frame pounds pounds weight pressure prevent produced pump quantity raising water receiver reservoir revolve Richard Trevithick Robison Rotative engine Rotatory engine Savery Savery's Engine Saving fuel scheme shewn side Steam Engine steam piston Steam wheel steam-boat steam-tight stroke tappets tion Trevithick valve vapour vessel Watt Watt's weight
Fréquemment cités
Page 112 - ... it in a case of wood, or any other materials that transmit heat slowly ; secondly, by surrounding it with s.team or other heated bodies ; and, thirdly, by suffering neither water, nor any other substance colder than the steam, to enter or touch it during that time.
Page 194 - ... up almost to the last moment of his existence, not only the full command of his extraordinary intellect, but all the alacrity of spirit, and the social gaiety which had illuminated his happiest days.
Page 15 - I have seen the water run like a constant fountain stream forty feet high ; 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 re-fill with cold water, and so successively, the fire being tended and kept constant, which the self-same person may likewise abundantly perform in the interim between the necessity of turning the said cocks.
Page 81 - 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.
Page 12 - 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 touchhole ; and making a constant fire under it, within twenty-four hours it burst and made a great crack...
Page 192 - By his admirable contrivance, it has become a thing stupendous alike for its force and its flexibility, for the prodigious power which it can exert, and the ease, and precision, and ductility, with which it can be varied, distributed, and applied. The trunk of an elephant, that can pick up a pin or rend an oak, is as nothing to it.
Page 97 - 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...
Page 193 - This will be the fame of Watt with future generations; and it is sufficient for his race and his country. But to those to whom he more immediately belonged, who lived in his society and enjoyed his conversation, it is not, perhaps, the character in which he will be most frequently recalled, — most deeply lamented, — or even most highly admired.
Page 194 - ... used to address his younger friends, that was always felt by them as an endearing mark of his kindness and familiarity, — and prized accordingly, far beyond all the solemn compliments that ever proceeded from the lips of authority. His voice was deep and powerful, — though he commonly spoke in a low and somewhat monotonous tone, which harmonized admirably with the weight and brevity of his observations ; and set off...
Page 193 - 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...