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 39
... direction for resisting the most severe strain to which it could be exposed , and to take care that while one part of the forging was being worked , other portions were not wasted under the action of the furnace by burning or ...
... direction for resisting the most severe strain to which it could be exposed , and to take care that while one part of the forging was being worked , other portions were not wasted under the action of the furnace by burning or ...
Σελίδα 46
... direction it is termed a float . A rasp has various isolated points raised upon its surface . The variety of files is almost end- less , depending as they do upon the nature of the work for which they are required ; but only a few of ...
... direction it is termed a float . A rasp has various isolated points raised upon its surface . The variety of files is almost end- less , depending as they do upon the nature of the work for which they are required ; but only a few of ...
Σελίδα 49
... directions , shown at a in Fig . 13 ; and those worked with a continuous circular motion , ground on one Fig . 13 . b ... direction in which the drill is made to cut , the pall catches in the teeth of the ratchet - wheel , and drives the ...
... directions , shown at a in Fig . 13 ; and those worked with a continuous circular motion , ground on one Fig . 13 . b ... direction in which the drill is made to cut , the pall catches in the teeth of the ratchet - wheel , and drives the ...
Σελίδα 57
... directions , -forwards , laterally , and a revolving motion . To the upper part of the frame guide blocks are attached , and within these guide blocks a square bar moves vertically . Mo- tion is imparted to this bar or slide by means of ...
... directions , -forwards , laterally , and a revolving motion . To the upper part of the frame guide blocks are attached , and within these guide blocks a square bar moves vertically . Mo- tion is imparted to this bar or slide by means of ...
Σελίδα 58
... direction , and pushing the wheel before it on its return . The wheel can thus be made to revolve by inter- mittent movements in either direction , by turning the pall on either side of the centre as may be required , or , if necessary ...
... direction , and pushing the wheel before it on its return . The wheel can thus be made to revolve by inter- mittent movements in either direction , by turning the pall on either side of the centre as may be required , or , if necessary ...
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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.