US384399A

US384399A - Gem-setting

Info

Publication number: US384399A
Authority: US
Publication date: 1888-06-12
Anticipated expiration: 1905-06-12

Description

(No Model.) W. SMITH.

GEM SETTING.

Patented June 12, 1888.

N PETERS. Photo-Lfihognphar. Wakingtlm D. C-

UNITED STATES PATENT @rrrcn.

XVARREN G. SMITH, OF BROOKLYN, NEW YORK.

GEM-SETTING.

SPECIFICATION forming part of Letters Patent No, 384,399, dated June 1 1889- (No model.)

To aZZ whom it may concern.-

Be it known that I, \VARREN G. SMITH, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Gem-Setting, of which the following is a specification.

Myinvention relates to gem-setting, as here ina-fter fully described, illustrated in the drawings, and specifically pointed out in the claims.

Referring to the accompanying drawings, wherein like letters of reference point out similar parts on each figure, Figure 1 is a perspectiveview ofashirt-stnd, the jewel of which is mounted in accordance with my invention. Fig. 2 is an enlarged view of an ear-ring without any setting, showing one pair of prongs with their extensions partially separated. Fig. 3 represents detail views of the invention an attached to any base, some prongs being disunited.

In the drawings, A represents the metal mounting, which consists of a curved base, a, from which extend upwardly aseries of prongs, 1 1 having upper extensions. 2, which in practice are upset over marginal facets of the gem, as plainly shown in Fig. 1. The prongs 1 1 rise upwardly in couples from an invertedly-curvcd base, (I, thus forming a series of U-shaped members, one arm of each U composing a prong, l, and .the opposite one a prong, 1. (See detail, Fig. 3.) 5 is a ring orfillet common in gem-settings. In practice the adjacent side edges of independent couples of said prongs are respectively joined in alignment, commencing a short distance from above the curved base, leaving toward the lower ends of each couple of jointed prongs a series of openings, 4, nearly triangular in shape. I thus provide an exceedingly graceful and serviceable setting, securing great strength with employment ofa minimum quantity and weight of metal. Besides this advantage the openings l,surrounding the lower part of the mounting, serve the purpose of admitting light therethrough, reflecting and refract ing light to and from the lower facets of the gem, a very desirable result, especially in imitation gems, increasing their translucency and brilliancy.

The upper turned-over extensions, 2, which are the terminal points of the prongs, are in practice closely united in couples, and their upper surfaces are finished to a plane by filing, polishing, bnrnishing, or any means well known to all familiar in the art to which my invention is allied.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. An improved jewel-setting composed of a series of independent prongs springing from an invertedly-curved base and joined together in couples at their side edges in right lines from a short distance above said base to their terminal points, substantially as described.

2. An improved jewel-setting consisting of aseries of independent U-shaped members, adapted and arranged to surround the sides of a gem, the vertical arms 1 l of each of the series being alternately joined from their terminal points in alignment down to near their curved base a, in combination with openings 4 at the lower end of each couple of prongs, substantially as described.

3. An improved jewel-setting consisting of ascries of independent pairs of prongs extending upwardly from an invertedly-arched base, each uprising prong being connected lengthwise to the next adjoining prong, said bases attached to and in combination with a lower ring, 5, substantially as described.

WARREN G. SMITH.

Witnesses:

W. S. WICKHAM, (lint. AnoLPni, J r.