… metal in that they are tapered and pointed, and they have a steeper cutting thread since they have to bite their own way … unslotted heads. They are used to fix railway lines to the sleepers and to assemble rafters and similar heavy woodwork. …
… cathode; carbon bars are used as anodes. The aluminium is deposited in the bottom of the baths from where it is … billets, slabs, wire bars, etc., usually after refining. By repeated electrolysis, aluminium can be obtained almost …
… magnesium chloride. In the first stage of the industrial preparation of the metal, magnesium chloride or magnesium … fluxes such as alkali metal chlorides or fluorides. The separated magnesium collects on the surface of the bath … mixed with air. * * * Unalloyed magnesium is used in the preparation of many chemical compounds, as a de‑oxidising …
… rubber, leather, mother of pearl, ivory, etc. Except for some cutting discs, which may be of considerable … flat, conical, spherical, dished, ring-shaped, recessed or stepped); they may also be planed or profiled at the edges. …
… to the following processes : (a) Clarification , to separate the juice from most of the solids, by means of … result from the manufacturing process or have been added separately : (1) Sugar. (2) Other sweetening agents, …
