The practical metal-worker's assistant : comprising metallurgic chemistry, the arts of working all 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 metal-workers, 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 (1872)
Byrne, Oliver · Philadelphia : H.C. Baird · leaf 600
t of a waiter or tray, upon which a prominence exists, as a mounting round the edge, such as a gadroon, see Fig. 583, it will cause lines and ridges from the bot¬ tom to the top, as already described at page Fig. 583. 561. Newly-formed solutions are most sub¬ ject to produce this annoyance. Other… … plate gets cut through. In a new solution, which contained 1| ounces of silver to the gallon, we have found, j ust before taking out the articles, that the top part of the solution con¬ tained 200 grains of silver less, and the bottom part 200 grains more per gallon, than when the articles were put…
Metal-work · Electrometallurgy · Metallurgy
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.