A Practical Treatise on Mechanical Engineering: Comprising Metallurgy, Moulding, Casting, Forging, Tools, Workshop Machinery, Mechanical Manipulation, Manufacture of the Steam-engine, Etc. : with an Appendix on the Analysis of Iron and Iron OresHenry Carey Baird, 1864 - 416 σελίδες |
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Σελίδα 27
... pressure frequently does not exceed half a pound per square inch . For coke , the pressure is from one and a half to three and a half pounds per square inch , the average being about two and a half pounds . The furnaces are sometimes ...
... pressure frequently does not exceed half a pound per square inch . For coke , the pressure is from one and a half to three and a half pounds per square inch , the average being about two and a half pounds . The furnaces are sometimes ...
Σελίδα 49
... pressure is imparted . Upon the shaft is fixed a sheave or pulley , around which the string of a steel bow passes ; by im- parting an alternate rectilinear motion to the bow , the wheel , shaft , and drill are caused to revolve ...
... pressure is imparted . Upon the shaft is fixed a sheave or pulley , around which the string of a steel bow passes ; by im- parting an alternate rectilinear motion to the bow , the wheel , shaft , and drill are caused to revolve ...
Σελίδα 70
... pressure which is balanced by some other equivalent pressure , or by a number of pressures , of which the resultant is equivalent to it ; but in the case of dynamic force the pressure is not so balanced , and in consequence , motion is ...
... pressure which is balanced by some other equivalent pressure , or by a number of pressures , of which the resultant is equivalent to it ; but in the case of dynamic force the pressure is not so balanced , and in consequence , motion is ...
Σελίδα 71
... pressure . At twice this pressure the volume will be reduced to about half ; at four times the pressure to nearly a quarter ; and so forth . If we have steam of a pressure of four atmospheres acting be- neath a piston fitted in a ...
... pressure . At twice this pressure the volume will be reduced to about half ; at four times the pressure to nearly a quarter ; and so forth . If we have steam of a pressure of four atmospheres acting be- neath a piston fitted in a ...
Σελίδα 72
... pressure is admitted during the whole of the stroke of the piston , —that is to say , during the time of its passage from one end of the cylinder to the other . Whereas by the second method , the steam is shut off when a part only of ...
... pressure is admitted during the whole of the stroke of the piston , —that is to say , during the time of its passage from one end of the cylinder to the other . Whereas by the second method , the steam is shut off when a part only of ...
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admitted air-pump alumina ammonia aperture apparatus arms attached bars baryta beam boiled boiler bottom bored carbonate carbonic acid caused centre chloric acid coal color combustion condenser connecting rod consists construction contains copper crank cross-head cylinder described diameter dissolved eccentric edge employed engine evaporated experiments explosion extremity feet filter fire flue force fraction fuel furnace gear hardened heat HENRY CAREY horse-power hydrochloric acid lathe leading screw length lever locomotive lower machine machinery magnesia manganese means metal method motion multiplied nitric acid number of teeth obtained ordinary oxide passes peroxide of iron phosphoric acid piston rod placed Plate potassa Practical precipitate present pressure produced protoxide pump quantity reverberatory furnace rivets sesquioxide shaft shown side slide smoke smoke-burning solution square inch steam steam-engine steel stroke sulphuric acid surface temperature thickness threads tion tool tubes upper usually valve various velocity vertical weight wheel
Δημοφιλή αποσπάσματα
Σελίδα 285 - THE COMBUSTION OF COAL AND THE PREVENTION OF SMOKE, Chemically and Practically Considered.
Σελίδα 13 - CE To which are added, Observations on the Construction of Steam Boilers, and Remarks upon Furnaces used for Smoke Prevention ; with a Chapter on Explosions. By R. Armstrong, CE, and John Bourne.