The Practical Metal-worker's Assistant ...: With the Application of the Art of Electro-metallurgy to Manufacturing Processes |
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Common terms and phrases
acid alloy angle antimony anvil applied battery becomes Bismuth blades blowpipe blows bolt brass carbon cast cast-iron centre charcoal circular coating cooling copper core crucible cutter cyanide cyanide of potassium cylinder deposit drill ductile edge electrotype employed equal fire fixed flask flat forging furnace fusible gold groove hammer hardened heat holes hollow iron joint lathe lead length less lever machine malleable mandrel manner manufacture melted metal method mode mould nearly nitric acid object ordinary oxide piece placed plaster of Paris plate platinum portion poured produced proportion punch punching engine quantity red heat removed riveted rollers round sal-ammoniac sand screw shears sheet side silver slide solder solid solution sometimes specific gravity square steel sulphuric sulphuric acid surface swage thick thin thread tion tool tube vessel welding wheels whilst wire wrought-iron zinc
Popular passages
Page 3 - Metals and Alloys ; Forging of Iron and Steel ; Hardening and Tempering ; Melting and Mixing; Casting and Founding ; Works in Sheet Metal; the Processes Dependent on the Ductility of the Metals; Soldering; and the most Improved Processes and Tools employed by Metalworkers. With the Application of the Art of Electro-Metallurgy to Manufacturing Processes ; collected from Original Sources, and from the works of Holtzapffel, Bergeron, Leupold, Plumier, Napier, Scoffern, Clay, Fairbairn and others.
Page 497 - ... thickness of the intervening wall of plaster of Paris, and by the coarseness or fineness of the material. I made three similar experiments, altering the texture and thickness of the plaster each time, by which I ascertained that if the...
Page 72 - ... times its original length. One of the most important facts connected with the new system of manufacturing malleable iron is that all the iron so produced will be of that quality known as charcoal iron; not that any charcoal is used in its manufacture, but because the whole of the processes following the smelting of it are conducted entirely without contact with, or the use of, any mineral fuel; the iron resulting therefrom will in consequence be perfectly...
Page 491 - Jacobi, at St. Petersburg)!, has also made a discovery which promises to be of little less importance to the arts. He has found a method — if we understand our informant rightly — of converting any line, however fine, engraved on copper, into a relief, by galvanic process.