The silversmith's handbook : containing full instructions for the alloying and working of silver, including the different modes of refining and melting the metal; its solders; the preparation of imitation alloys... (1921)
Gee, George E. (George Edward) · London : Crosby Lockwood and Son · leaf 57
about five minutes strong heat, and at theend of that time the crucible may be withdrawn,and its contents poured into an iron mould, asrepresented in Fig. 4, having one or two conicalholes for the reception of the fused mass. Thesilver and lead collect at the bottom of the mouldby reason of its… … Fig. 4. Iron CastingCioulds. large quantity of silver can be readily collectedfrom its ores by an alternate use of crucibles, inwhich case it is possible to make a regular numberof fusions per hour. Wrought-iron crucibles, whenstrongly prepared and carefully made, will standabout thirty of these…
Silverwork
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