The steam engine |
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Página 21
... centre g , and having at its other extremity h a weight , as a pump - rod weighted , which , acting as a counterpoise , pulls the piston up to the top of the cylinder . Now supposing steam to be introduced to the interior of the ...
... centre g , and having at its other extremity h a weight , as a pump - rod weighted , which , acting as a counterpoise , pulls the piston up to the top of the cylinder . Now supposing steam to be introduced to the interior of the ...
Página 24
... centre h . This axle was made to move by the pins in the beam n n striking the ends of the spanners km , which were firmly fixed in the axle n . On the axle , at a position between the two prongs , a lever called a tumbling - bob was ...
... centre h . This axle was made to move by the pins in the beam n n striking the ends of the spanners km , which were firmly fixed in the axle n . On the axle , at a position between the two prongs , a lever called a tumbling - bob was ...
Página 25
... centre out of its true centre ; the stroke of the piston being then nine feet , whilst that of the pump , which lifted thirty feet , was only six feet . This arrangement necessitated the employment of a long narrow cylinder , eighteen ...
... centre out of its true centre ; the stroke of the piston being then nine feet , whilst that of the pump , which lifted thirty feet , was only six feet . This arrangement necessitated the employment of a long narrow cylinder , eighteen ...
Página 33
... centre of which the piston - rod worked through an aperture rendered tight by what is termed a " stuffing- box . " The necessity of adopting the next expedient suggested to him was thus made obvious ; and in place of the power of the ...
... centre of which the piston - rod worked through an aperture rendered tight by what is termed a " stuffing- box . " The necessity of adopting the next expedient suggested to him was thus made obvious ; and in place of the power of the ...
Página 39
... , and b that of the valve admitting the steam to the condenser ; these are connected by a joint to levers moving on the centres cc ; hh is the plug - frame , having studs or projecting pins on HISTORY OF THE STEAM - ENGINE . 39.
... , and b that of the valve admitting the steam to the condenser ; these are connected by a joint to levers moving on the centres cc ; hh is the plug - frame , having studs or projecting pins on HISTORY OF THE STEAM - ENGINE . 39.
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Términos y frases comunes
actuated adopted air-pump aperture apparatus applied arrangement atmosphere attached beam bolted bottom carried centre Chacewater chimney cistern cock cold water condenser connected connecting-rod construction contrivance crank cross-head cylinder Dalswinton diagram in fig diameter disc eccentric eccentric-rod effect expansion expansion-valve experiments feet fire-box flue force fuel Fulton furnace George Stephenson give heat high-pressure Illustrated London illustrative improvement inches interior introduced invention latent heat lever locomotive Lord Dundas lower machine means Mechanics and Mechanism motion moved ordinary passing patent pipe piston piston-rod placed plate port practical present pressure principle pulley pump raised ratchet-wheels receiver regulator revolving rotatory engine safety-valve Savery screw shaft shut slide space spindle steam steam is admitted steam-boat steam-engine steam-pipe stroke stuffing-box supply surface Symington tappets Timothy Hackworth tion tubes upper side vacuum valve vapour vessel Watt Watt's weight wheel William Symington
Pasajes populares
Página 57 - He had a certain quiet and grave humour, which ran through most of his conversation, and a vein of temperate jocularity, which gave infinite zest and effect to the condensed and inexhaustible information which formed its main staple and characteristic. There was a little air of affected testiness, and a tone of pretended rebuke and contradiction, with which he used to...
Página 6 - 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...
Página 31 - 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...
Página 57 - ... known, that he was curiously learned in many branches of antiquity, metaphysics, medicine, and etymology, and perfectly at home in all the details of architecture, music, and law. He was well acquainted too with most of the modern languages, and familiar with their most recent literature. Nor was it at all extraordinary to hear the great mechanician and engineer detailing and expounding, for hours together, the metaphysical theories of the German logicians, or criticising the measures or the...
Página 187 - Drawing Book (The Illustrated). Comprising a Complete Introduction to Drawing and Perspective ; with Instructions for Etching on Copper or Steel, &c. &c. By ROBERT SCOTT BURN. Illustrated with above 300 Subjects for Study in every branch of Art. Demy 8vo, cloth, *t.
Página 163 - 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.
Página 57 - 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 rather liked to talk — at least in his latter years.
Página 187 - We can have no hesitation in giving it as our opinion, that this is the most elaborate and successful undertaking of the kind which has ever appeared.
Página 7 - ... a way to make my vessels, so that they are strengthened by the force within them, and the one to fill after the other. I have seen the water run like a constant fountain-stream forty feet high ; one vessel of •water rarified by fire, driveth up forty of cold water.
Página 48 - Having made my reciprocating engines very regular in their movements, I considered how to produce rotative motions from them in the best manner ; and amongst various schemes which were subjected to trial, or which passed through my mind, none appeared so likely to answer the purpose as the application of the crank in the manner of the common turning lathe (an invention of great merit, of which the humble inventor, and even its era, are unknown).