A Treatise on the Steam Engine: From the Seventh Edition of the Encyclopedia BritannicaA. and C. Black, 1846 - 296 pages |
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A Treatise on the Steam-Engine: From the Seventh Ed. of the Encyclopaedia ... John Scott Russell No preview available - 2018 |
Common terms and phrases
acting action air-pump apparatus appendages applied atmosphere axis axle bars beam boiler bottom centre circle cock cold water common condenser connecting rod construction copper crank cubic foot cylinder descend diameter direction eccentric eduction-pipe effect Encyclopædia Britannica equal evaporated experiments feet figure filled fire flask flue fly-wheel foot force of steam Franklin Institute fuel fusible plugs gine heating surface high-pressure horse power invention iron lever machine manner Marquis of Worcester mechanism metal moving Newcomen parallel motion passes perfect pipe piston piston-rod placed plate plugs pounds practical pressure produced pump quantity raising water reciprocating reciprocating engine regulated rendered revolution revolving rotatory engine round Salomon de Caus Savery shut side side rods simple square inch steam-engine steam-pipe steam-valve stopcock straight line strength stroke temperature tion tube turn upper vacuum valve velocity vessel Watt Watt's weight wheel whole
Popular passages
Page 22 - 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 ; 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...
Page 70 - 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 enclosing 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 or any other substance colder than the steam to enter or touch it during that time.
Page 93 - Wasbrough erected one of his ratchet-wheel engines at Birmingham, the frequent, breakages and irregularities of which recalled the subject to my mind, and I proceeded to make a model of my method, which answered my expectations; but having neglected to take out a patent, the invention was communicated, by a workman employed to make the model, to some of the people about Mr.
Page 61 - ... diameter.) By blowing the fire it was made to take a few strokes ; but required an enormous quantity of injection water, though it was very lightly loaded by the column of water in the pump. It soon occurred...
Page 22 - 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 70 - ... first, that vessel in which the powers of steam are to be employed to work the engine, which is called the cylinder...
Page 60 - 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...
Page 21 - A Century of the Names and Scantlings Of Such Inventions, as at present I can call to mind to have tried and perfected which (my former notes being lost) I have, at the instance of a powerful Friend, endeavoured now in the year 1655 to set these down in such a way as may sufficiently instruct me to put any of them in practice.
Page 92 - 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).
Page 92 - ... to one another, and a weight placed upon the circumference of the fly at the same angle to each of the cranks, by which means the motion might be rendered nearly equal, and a very light fly would only be requisite.