US 2085757 A
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J l 5, 1937 H. G., KAZANJIAN El AL I 2,085,757
PROCESS OF TREATING GEMS Filed March 14, 1956 14 b MM /2 x ,lfji'gsi. 136 .2; 153 .8.
INVENTORS BY W ATTORNEL/ Patented July 6, 1937 UNITED STATES GFFM PROCESS OF TREATING GEMS Harry G. Kazanjian and James M. Kazanjian, Los Angeles, Calif.
Application March 14, 1936, Serial No. 68,972
ject the provision of an improved process of treating gems.
An object of the invention is to provide a method of correcting flaws or defects in stones by inlaying fragments of stones of less hardness than those to be inlaid in the pits, cavities or depressions; the inlays being fused by suitable heat so as to completely fill the cavities,
and thereafter ground and polished so as to remove protruding portions of the inlays and provide uninterrupted and smooth surfaces on the treated facets of the gems.
In the accompanying drawing we have shown a preferred process for treating stones for the purpose hereinbefore mentioned, subject to modification, within the scopeof the appended claims, without departing from the spirit of the invention. In said drawing:
Figs. 1, 2, and 3, are views of a gem, in cross section, showing, respectively, the initial application of an inlay, the completed and unfinished inlay in position in the'cavity of a gem, and the gem after the final grinding and polishing to remove indication of the inlay.
In carrying out this invention a gem of the character shown at lb in Fig. 1 and having a defect such as a cavity II on a facet or side l4 thereof, is treated so that the cavity is filled without leaving any visible indication thereof.
This is accomplished by fusing a fragment l2 of a gem of softer material and of a color matching the gem under treatment, by means of the application of heat as from a burner l3, so that the inlay will run into and completely fill the cavity. This step in the operation is illustrated in Fig. 1.
Thereafter, as shown in Fig. 2, the protruding outer portion of the inlay is ground off and the surface M is polished so that the completed gem will appear as shown in Fig. 3, and the outer surface of the inlay will be flush with the corresponding surface of the gem.
What we claim, is:
1. The process of treating gems which have cavities therein consisting of: fusing a fragment of a gem of less hardness than the gem having the cavity, filling said cavity with fused inlay, and finally grinding the protruding portions of said inlay so that the same will be flush with the adjacent surface of said gem.
2. The process of treating gems having cavities therein which consists in: positioning a fragment of .a gem of less hardness than the gem to be treated adjacent the cavity in the gem, applying heat to said fragment so that the same will be fused into and will fill said cavity and thereby form an inlay, and grinding and polishing the protruding portion of said inlay so that its outer surface will be flush with the corresponding surface of the gem.
3. The process of treating gems having cavities therein which consists in: fusing an inlay of a color corresponding to that of the gem to be treated and of less hardness than said gem into a cavity of said gem, and removing the protruding portions of said inlay so that the corresponding surfaces of said gem and said inlay will be in a common plane.