Jewelry: Concepts And Technology
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The definitive reference for jewelry makers of all levels of ability--a complete, profusely illustrated guide to design, materials, and techniques, as well as a fascinating exploration of jewelry-making throughout history.
coral-decorated strip to release the hooks. Col. of the Traphagen School of Fashion, New York. Photo: Oppi 5–43 ARLINE M. FISCH, U.S.A. Sterling silver pendant/perfume flask, repoussè-worked, chased, and fabricated to hold a glass perfume bottle. The head is hinged to expose the stopper when tilted. Height 4 in; width 1 1⁄4 in. Photo: Arline M. Fisch FABRICATION WITH REPOUSSAGE UNITS There are many possibilities for the fabrication of jewelry made entirely or in part of repoussage units. The
protection against sandblast contact because the high-velocity particles bounce off the gloves. The blast should be kept moving to avoid excessive local metal removal, unless this is wanted. After contact with the work, the abrasive medium passes through a wire mesh, expanded metal, or perforated plate to remove coarse contaminants, and is returned to a storage container from which it is recirculated. 14–3 SANDBLASTING EQUIPMENT AND MATERIALS 1. Handler “Junior” sandblaster, bench-top model, 9
The sheets may be loose, or stitched together along one edge like a book, hence the name. When loose sheets are used, approximately 20 extra sheets are placed at the top and the bottom of the pack. Each sheet has been rubbed with calcined, finely powdered plaster of paris, applied with a rabbit’s foot or a brush to prevent the leaf from sticking to the sheet which would cause it to tear. The book or loose sheets are tied together, then slipped into a strong, encircling vellum case that has two
London, has pioneered in the introduction of information concerning the use of tantalum and niobium (columbium) by craftspersons in jewelry, through the issuance of technical reports. Both these metals can be colored in the same manner as titanium. (See Titanium Coloring, Chapter 17.) The color range is even wider and more brilliant than that of titanium, and colors are not the same for each metal at any given anodizing voltage. These metals, unlike titanium, can be cold worked with normal hand
a metal surface during its exposure to atmospheric conditions. Taking silver tarnish as an example, this consists mainly of silver sulphide (Ag2S) and some silver oxide (Ag2O), which develop when the object is in a humid atmosphere, and where even a low concentration of hydrogen sulphide (H2S) exists, as well as acids and dust. The rate of tarnish on silver increases with the relative increase in humidity and rise in atmospheric temperature. Under such conditions, these substances interact, the