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
... 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 worked with hot blast , and to heat the blast of a ...
... 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 worked with hot blast , and to heat the blast of a ...
Σελίδα 71
... square inch ; but it may be taken in round figures at 15 lbs . per square inch . It is in this difference between the pressures on the two sides of a piston made as nearly as possible air and steam - tight , that the mechanical ...
... square inch ; but it may be taken in round figures at 15 lbs . per square inch . It is in this difference between the pressures on the two sides of a piston made as nearly as possible air and steam - tight , that the mechanical ...
Σελίδα 73
... square inch , and in extreme cases being expanded down to a pressure of 5.9 lbs . per square inch , in which case the temperature of the steam would be reduced from 279 ° down to about 229 ° ; this reduction of temperature would of ...
... square inch , and in extreme cases being expanded down to a pressure of 5.9 lbs . per square inch , in which case the temperature of the steam would be reduced from 279 ° down to about 229 ° ; this reduction of temperature would of ...
Σελίδα 74
... square inch would only have to lose 7 units . These considerations tend to show that the experiments give re- sults which are reliable only under the circumstances under which they are conducted , and that steam of a higher pressure or ...
... square inch would only have to lose 7 units . These considerations tend to show that the experiments give re- sults which are reliable only under the circumstances under which they are conducted , and that steam of a higher pressure or ...
Σελίδα 79
... square inches , therefore , as the total pressure on each piston is equal to the pressure per square inch , multiplied by the number of square inches of surface of the piston , the water will exercise four times the pressure on the ...
... square inches , therefore , as the total pressure on each piston is equal to the pressure per square inch , multiplied by the number of square inches of surface of the piston , the water will exercise four times the pressure on the ...
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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.