The Steam Engine: Comprising an Account of Its Invention and Progressive Improvement, Volume 2,Partie 1J. Taylor, 1827 - 370 pages |
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Page xv
... Rule for the power 407 201 • 408-410 202 · Single engines acting expansively 411-413 203 Of the double engine of Boulton and Watt The proportions of the parts for a double engine 414-418 204 acting with full pressure 415 205 To ...
... Rule for the power 407 201 • 408-410 202 · Single engines acting expansively 411-413 203 Of the double engine of Boulton and Watt The proportions of the parts for a double engine 414-418 204 acting with full pressure 415 205 To ...
Page xviii
... Rule for the power of boat engines Of arranging the power for vessels · 594 595-610 299 • ibid . 598 • ibid . 599-610 300 · 611-623 • 302 • 309 · 626 , 627 628-641 • 310 • 312 642 321 643 322 • 645 · ibid . 650 324 · 652-656 325 ...
... Rule for the power of boat engines Of arranging the power for vessels · 594 595-610 299 • ibid . 598 • ibid . 599-610 300 · 611-623 • 302 • 309 · 626 , 627 628-641 • 310 • 312 642 321 643 322 • 645 · ibid . 650 324 · 652-656 325 ...
Page 4
... rules of statics , and by science reduced to measure , weight , and balance , then they bear their load peaceably ( like good horses ) and thus become of great use to mankind , particularly for raising water , according to the following ...
... rules of statics , and by science reduced to measure , weight , and balance , then they bear their load peaceably ( like good horses ) and thus become of great use to mankind , particularly for raising water , according to the following ...
Page 23
... rule to load the piston , so as but little to exceed eight pounds to the inch ; but , on more experi- ence , they diminished that load , and amongst the best engines previous to Smeaton's own time the load was made about seven pounds to ...
... rule to load the piston , so as but little to exceed eight pounds to the inch ; but , on more experi- ence , they diminished that load , and amongst the best engines previous to Smeaton's own time the load was made about seven pounds to ...
Page 33
... rules for the strength of engine beams , both for wood and cast iron ; and also a description of a gauge for determining the state of rarefaction in the cylinders and condensers of steam engines , in principle the same as the common ...
... rules for the strength of engine beams , both for wood and cast iron ; and also a description of a gauge for determining the state of rarefaction in the cylinders and condensers of steam engines , in principle the same as the common ...
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Expressions et termes fréquents
acting action air pump aperture applied axis beam boiler boiling bottom Boulton and Watt Carbon cast iron chimney circular inch coal cock column condenser construction crank cubic feet cubic foot cylinder degree density diameter double acting double engine effect elastic force equal expansion experiments feet per minute fire flue fluid force of steam friction fuel half hence high pressure horse power Hydrogen inches of mercury increase injection length less lever liquid load low pressure steam means metal method mode motion move multiplied nearly paddles passage piston rod Plate pounds per circular proportion quantity of heat raised one foot raising water regulated render resistance safety valve shaft shew shewn slide specific specific gravity square root steam engine steam pipe stroke stuffing box surface temperature throttle valve tube Ure's vapour velocity vessel volume Watt weight wheel
Fréquemment cités
Page xix - An admirable and most forcible way to drive up water by fire, not by drawing or sucking it upwards, for that must be as the philosopher calleth it, infra spheeram activitatis, which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it...
Page 20 - I call the steam vessel, must, during the whole time the engine is at work, be kept as hot as the steam that enters it ; first, by inclosing it in a case of wood, or any other materials that transmit heat slowly; secondly, by surrounding it with steam 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 xx - 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 refill 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 xx - ... 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 11 - 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 20 - Fourthly, I intend, in many cases, to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common fire engines.
Page 21 - In these steam-vessels are placed weights, so fitted to them as to fill up a part or portion of their channels, yet rendered capable of moving freely in them by the means hereinafter mentioned or specified. When the steam is admitted in these engines between these weights and the valves, it acts equally on both, so as to raise the weight...
Page 53 - ... of an inch upon the top of the mercurial column ; because being lighter it ascends by the side of the tube ; which may now be inclined and the mercury will rise to the top manifesting a perfect vacuum from air. I next take a cylindrical glass...
Page 20 - ... any other substance colder than the steam to enter or touch it during that time. " Secondly. In engines that are to be worked wholly or partially by condensation of steam, the steam is to be condensed in vessels distinct from the steam...
Page 21 - When the steam is admitted in these engines between these weights and the valves, it acts equally on both, so as to raise the weight to one side of the wheel, and by the reaction on the valves successively, to give a circular motion to the wheel, the valves opening in the direction in which the weights are pressed, but not in the contrary ; as the steam vessel moves round, it is supplied with steam from the boiler ; and that which has performed its office may either be discharged by means of condensers...