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 6
... lead , tin , and zinc is considered ; the nature and localities of the various metal- liferous ores being described , and also the practical methods most usually employed for the reduction of metals to the conditions in which they occur ...
... lead , tin , and zinc is considered ; the nature and localities of the various metal- liferous ores being described , and also the practical methods most usually employed for the reduction of metals to the conditions in which they occur ...
Σελίδα 20
... lead , and zinc , will also demand some considera- tion , but it is unnecessary here to comment farther upon them . Having concluded our introductory remarks upon the earlier processes of metallurgy , we may proceed to mention the ...
... lead , and zinc , will also demand some considera- tion , but it is unnecessary here to comment farther upon them . Having concluded our introductory remarks upon the earlier processes of metallurgy , we may proceed to mention the ...
Σελίδα 29
... lead shot is cast , and it is stated that by this method so large a surface is exposed to the oxidizing influence of the air that the metal is purified by the oxidation of its foreign ingredients . It has also been proposed to oxidize ...
... lead shot is cast , and it is stated that by this method so large a surface is exposed to the oxidizing influence of the air that the metal is purified by the oxidation of its foreign ingredients . It has also been proposed to oxidize ...
Σελίδα 33
... lead , is treated in a reverberatory furnace , where it is first subjected to a roasting process , which , by the oxidation of the constituent elements of the mineral , converts it into sulphate of lead and oxide of lead , which , re ...
... lead , is treated in a reverberatory furnace , where it is first subjected to a roasting process , which , by the oxidation of the constituent elements of the mineral , converts it into sulphate of lead and oxide of lead , which , re ...
Σελίδα 66
... lead to one part of antimony . Fig . 23 . The fitter and erecter will also require a scribing - block , which consists of a piece of metal jointed to a wooden block at one end , and having at the other a point ; it is useful for marking ...
... lead to one part of antimony . Fig . 23 . The fitter and erecter will also require a scribing - block , which consists of a piece of metal jointed to a wooden block at one end , and having at the other a point ; it is useful for marking ...
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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.