The Steam-engine: A Popular Account of Its Construction, Action, and History, and a Description of Its Various Forms, with a Sketch of the Laws of Heat and Pneumatics, and a Critique on M. Arago's "Éloge of Watt"
Groombridge & Sons, 1851 - 269 pages
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acting action admitted air-pump apparatus applied Arago atmospheric pressure attached attraction beam become bodies boiler boiling called carriage Caus cause closed cold communication condenser connected considerable considered constructed containing continuous contrivances cooling crank cylinder descend described direct double effect elastic force employed engine enter equal expansion experiment extremity feet figure fire fixed fuel give greater heat Hence hour idea important increased introduced invention inventor iron less liquid lower machine machinery manner matter means mechanical mercury method miles motion moving power Newcomen's Papin particles passes piston piston-rod pounds principle procured produced proportion proposed pump quantity raising water remain resistance rise Savery separate side space speed square inch steam steam-engine successful supply surface temperature termed tube turned upper vacuum valve vapour vessel Watt Watt's weight wheel
Page 103 - 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.
Page 234 - That at this rate they have conveyed upwards of fourteen passengers. 3. That their weight, including engine, fuel, water, and attendants, may be under three tons. 4. That they can ascend and descend hills of considerable inclination with facility and safety, 5. That they are perfectly safe for passengers. 6. That they are not (or need not be, if properly constructed) nuisances to the public. 7. That they will become a speedier and cheaper mode of conveyance than carriages drawn by horses.
Page 197 - This uncommon light first attracted the attention of the crews of other vessels. Notwithstanding the wind and tide were adverse to its approach, they saw with astonishment that it was rapidly coming...
Page 103 - ... into the next room ; and with so great ease and geometrical symmetry, that, though it work day and night, from one end of the year to the other, it will not require forty shillings reparation to the whole engine, nor hinder one day's work.
Page 102 - A CENTURY OF THE NAMES AND SCANTLINGS OF SUCH INVENTIONS, as at present I can call to mind to have tried and perfected...
Page 172 - My attention was first directed, in the year 1759, to the subject of steam-engines, by the late Dr. Robison, then a student in the University of Glasgow, and nearly of my own age. He at that time threw out an idea of applying the power of the steam-engine to the moving of wheelcarriages, and to other purposes, but the scheme was not matured, and was soon abandoned on his going abroad.
Page 103 - An engine so contrived, that working the primum mobile forward or backward, upward or downward, circularly or cornerwise, to and fro, straight, upright, or downright, yet the pretended operation continueth, and advanceth, none of the motions above-mentioned hindering, much less stopping the other; bnt unanimously, and with harmony agreeing, they all augment and contribute strength unto the intended work and operation. And therefore I call this' a semi-omnipotent engine,' and do intend that a model...
Page 169 - Having made my reciprocating engines very regular in their movements, I considered how to produce rotative motions from them, in the best manner ; and...
Page 102 - 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, Intra sphceram 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 111 - Friend, or an Engine to raise Water by Fire described, ' and the Manner of fixing it in Mines, with an Account of ' the several other uses it is applicable unto ; and an Answer ' to the objections made against it. By Tho. Savery, Gent. ' Pigri est ingenii contentum esse his quce ab aim inventa sunt. ' Seneca. London, printed by S. Crouch at the corner of ' Pope's-head Alley in Cornhill. 1702.