The steam engine familiarly explained and illustrated; with an historical sketch of its invention and progressive improvement; its applications to navigation and railways |
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Expressions et termes fréquents
acclivity admitted air-pump angle angle of repose applied ascending atmospheric engine atmospheric pressure attached axis axle beam boiler bottom Boulton and Watt carriage centre cistern coal cock combustion communication condenser connecting rod constructed contrivance crank cubic cylinder descending diminished driving driving wheels evaporation experiments feed feet flues fly-wheel force fuel furnace gauge greater heat horses imparted increased length less lever Liverpool load machine machinery magnitude motion moving power necessary opened paddle boards paddle wheel passage passing piston rod placed position pounds principle produced propeller proportion pump quantity rails railway raised rendered represented in fig resistance revolve road screw shaft slide space speed square inch steam engine steam navigation steam pipe steam valve steam vessels steam-tight steamers stroke stuffing box sufficient sun wheel supply surface temperature throttle valve tractive power train tube upwards vacuum velocity vertical voyage Watt weight wide gauge
Fréquemment cités
Page 21 - ... 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 21 - 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...
Page 21 - 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 i - Museum of Science and Art. THE MUSEUM OF SCIENCE AND ART. Edited by DIONYSIUS LARDNER, DCL, formerly Professor of Natural Philosophy and Astronomy in University College, London. With upwards of 1 200 Engravings on Wood.
Page 21 - 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...