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 18
... bar - iron is required , must undergo some further purification . We may here pause to explain the physical and chemical dis- tinctions existing between cast and wrought - iron . Cast - iron con- tains many impurities , consisting ...
... bar - iron is required , must undergo some further purification . We may here pause to explain the physical and chemical dis- tinctions existing between cast and wrought - iron . Cast - iron con- tains many impurities , consisting ...
Σελίδα 30
... bars , which are subsequently packed in powdered charcoal in large cases , and there exposed in a suitable furnace to a bright - red heat , until the metal has taken up a sufficient portion of carbon to convert it into steel . Steel may ...
... bars , which are subsequently packed in powdered charcoal in large cases , and there exposed in a suitable furnace to a bright - red heat , until the metal has taken up a sufficient portion of carbon to convert it into steel . Steel may ...
Σελίδα 35
... bars or plates , in order that they may subsequently be applied by the mechanical engineer to the various purposes for which they are required . In this operation the blooms are frequently operated upon by hammers raised by a shaft ...
... bars or plates , in order that they may subsequently be applied by the mechanical engineer to the various purposes for which they are required . In this operation the blooms are frequently operated upon by hammers raised by a shaft ...
Σελίδα 36
... bars ; for this pur- pose , stout cylinders , with grooves turned upon them , are employed , the metal being passed through grooves gradually diminishing in size until the metal is reduced to the desired dimensions ; the gen- eral form ...
... bars ; for this pur- pose , stout cylinders , with grooves turned upon them , are employed , the metal being passed through grooves gradually diminishing in size until the metal is reduced to the desired dimensions ; the gen- eral form ...
Σελίδα 38
... bars ; for if , in the slab method , any oxide of iron or dirt should intrude itself between the joints , the seams will run across the shaft ; whereas in the bar method they will be longitudinal . It is , however , very important to ...
... bars ; for if , in the slab method , any oxide of iron or dirt should intrude itself between the joints , the seams will run across the shaft ; whereas in the bar method they will be longitudinal . It is , however , very important to ...
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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.