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 28
... centre part of the furnace , is charged with broken metal , rich slag , and iron scales ; the doors and sides of the furnace are now closed , and fuel thrown on the grate . When the metal begins to melt , the door is opened and the ...
... centre part of the furnace , is charged with broken metal , rich slag , and iron scales ; the doors and sides of the furnace are now closed , and fuel thrown on the grate . When the metal begins to melt , the door is opened and the ...
Σελίδα 31
... centre of which a stream of water continually pours , where the ore is also supplied , being uniformly distributed by means of brushes suspended from arms on a vertical spindle . The specific gravity of the ore on this apparatus ...
... centre of which a stream of water continually pours , where the ore is also supplied , being uniformly distributed by means of brushes suspended from arms on a vertical spindle . The specific gravity of the ore on this apparatus ...
Σελίδα 39
... centre the bars are not welded at all . A few bars should therefore first be welded together , and when soundly joined , other layers of bars may be packed around this central core : the process being continued until the re- quired size ...
... centre the bars are not welded at all . A few bars should therefore first be welded together , and when soundly joined , other layers of bars may be packed around this central core : the process being continued until the re- quired size ...
Σελίδα 42
... centre of this a hollow is scooped resembling the form of the article to be cast . In this the pattern is bedded in a horizontal position , being sunk in the sand to as nearly as possible half its thickness ; powdered charcoal or coal ...
... centre of this a hollow is scooped resembling the form of the article to be cast . In this the pattern is bedded in a horizontal position , being sunk in the sand to as nearly as possible half its thickness ; powdered charcoal or coal ...
Σελίδα 44
... centre of the dome , and supported in bearings at the top and bottom , so that the scraper can be caused to revolve . The required form having been obtained , the scraper is removed , and the mould allowed to dry ; after which it is ...
... centre of the dome , and supported in bearings at the top and bottom , so that the scraper can be caused to revolve . The required form having been obtained , the scraper is removed , and the mould allowed to dry ; after which it is ...
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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.