A History of the Growth of the Steam-engineD. Appleton, 1902 - 530 pagini |
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Pagina 3
... described the new machinery which was built at Newport , R. I. , by John Babcock and Robert L. Thurs- ton , for one of the first steamboats that ever ran between that city and New York . He prefaced his description with a frequently ...
... described the new machinery which was built at Newport , R. I. , by John Babcock and Robert L. Thurs- ton , for one of the first steamboats that ever ran between that city and New York . He prefaced his description with a frequently ...
Pagina 4
... described in his work . It is most probable that the apparatus described are prin- cipally devices which had either been long known , or which were invented by Ctesibus , an inventor who was famous for the number and ingenuity of the ...
... described in his work . It is most probable that the apparatus described are prin- cipally devices which had either been long known , or which were invented by Ctesibus , an inventor who was famous for the number and ingenuity of the ...
Pagina 5
... described , the greater num- ber of which are probably attributable to Ctesibus . They demand no description here . A hot - air engine , however , which is the subject of his 37th proposition , is of real interest . Hero sketches and ...
... described , the greater num- ber of which are probably attributable to Ctesibus . They demand no description here . A hot - air engine , however , which is the subject of his 37th proposition , is of real interest . Hero sketches and ...
Pagina 6
... described , in which the bucket is replaced by an air - tight bag , which , expanding as the heated air enters it , contracts vertically and actuates the mechanism , which in other respects is similar to that just described . In these ...
... described , in which the bucket is replaced by an air - tight bag , which , expanding as the heated air enters it , contracts vertically and actuates the mechanism , which in other respects is similar to that just described . In these ...
Pagina 8
... described , usually simple pipes or cylindrical vessels , and the steam generated in them by the heat of the fire on the altar forms a steam - blast . This blast is either directed into the fire , or it " makes a black- bird sing ...
... described , usually simple pipes or cylindrical vessels , and the steam generated in them by the heat of the fire on the altar forms a steam - blast . This blast is either directed into the fire , or it " makes a black- bird sing ...
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Termeni și expresii frecvente
adopted application beam boat boiler Boulton Boulton & Watt Boulton and Watt built carriage carried century Charlotte Dundas coal compound engine condenser connected connecting-rod construction crank cross-head cut-off cylinder driving efficiency energy expansion experiments feet long feet stroke fire-box fire-engine Fitch flue fuel Fulton furnace gases George Stephenson gine heat heating-surface horse-power hull improvement inches in diameter introduced invention inventor James Watt later locomotive machine machinery mechanical method miles an hour motion Newcomen engine Oliver Evans paddle-wheels Papin patent pipe piston-rod placed pounds per square pressure propelling proposed pump pumping-engine railroad raised Richard Trevithick road Ross Winans Savery screw secured seen shaft sketch Soho speed square inch steam steam-boiler steam-carriage steam-cylinder steam-engine steam-pipe steam-pressure steam-valve steamboat steamers Stephenson Stevens stroke of piston success temperature Thomas Savery tion tons Trevithick tubes usually valve valve-gear vessel Watt Watt's weight wheels York
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Pagina 190 - What can be more palpably absurd and ridiculous than the prospect held out of locomotives travelling twice as fast as stage-coaches! We would as soon expect the people of Woolwich to suffer themselves to be fired off upon one of Congreve's ricochet rockets, as trust themselves to the mercy of such a machine going at such a rate.
Pagina 438 - That the quantity of heat produced by the friction of bodies, whether solid or liquid, is always proportional to the quantity of force expended.
Pagina 97 - 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. In cases where cold water cannot be had in plenty, the engines may be wrought by this force of steam only, by discharging the steam into the open air, after it has done its office.
Pagina 256 - ... beneath their decks from the terrific sight, and left their vessels to go on shore ; while others prostrated themselves, and besought Providence to protect them from the approach of the horrible monster which was marching on the tides, and lighting its path by the fires which it vomited.
Pagina 97 - 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...
Pagina 153 - The time will come when people will travel in stages moved by steam engines, from one city to another, almost as fast as birds fly, fifteen or twenty miles an hour.
Pagina 98 - ... 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...
Pagina 104 - ... distance between it and the next valve is filled with steam, shut the valve, and the steam will continue to expand and to press round the wheel with a diminishing power, ending in one-fourth of its first exertion. The sum of this series you will find greater than one-half, though only one-fourth steam was used.
Pagina 167 - Committee to believe that the substitution of inanimate for animal power, in draught on common roads, is one of the most important improvements in the means of internal communication ever introduced. Its practicability they consider to have been fully established ; its general adoption will take place more or less rapidly, in proportion as the attention of scientific men shall be drawn by public encouragement to further improvement.