| 摘要 |
PCT No. PCT/LK89/00001 Sec. 371 Date Apr. 15, 1991 Sec. 102(e) Date Apr. 15, 1991 PCT Filed Sep. 8, 1989 PCT Pub. No. WO90/02828 PCT Pub. Date Mar. 22, 1990.A method of fabricating a hollow jewelry object in which an electrically conductive coating is applied to part (18) of a non-conductive mandrel or mould (10), the coated mandrel being presented for a first dip into an electrolyte containing ions of a precious metal e.g. gold so that the parts of the mandrel are coated with an initial deposit; the mandrel is then removed from the electrolyte and the previously uncoated portions (24) coated before the mould is again dipped in the or a different electrolyte to form an outer shell integral with the internal ribs or points formed during the first dip. Thus the hollow jewelry object is internally strengthened by the ribs; though in an alternative embodiment the ribs can be replaced by individual upstanding projections in bas relief if these conform to the external profile required for the jewelry object. The invention also includes a hollow jewelry object formed by the method according to the invention. |
