GB2110920A - Ornamental stone for trinkets and jewelry in general - Google Patents

Abstract

An ornamental stone (figure 1) consists of at least two shaped elements A and B, of which the outer element B is hollow to house and securely hold at least part of the first element A. The two shaped elements A and B are bonded to each other by means of cement. Advantageously, element B consists of two parts B1 and B2, the cavities of which are complementary to house the first element and at least one of which is provided with apertures B3. The two parts B1 and B2 have vertical or horizontal mating surfaces apt to receive and retain the adhesive. <IMAGE>

Description

SPECIFICATION Ornamental stone for trinkets and jewelry in general This invention relates to an ornamental stone or similar used in particular in the manufacture of trinkets and jewelry in general.

In accordance with the present invention, there is provided an ornamental stone for trinkets and jewels in general, characterized in that it has at least two elementary shaped stones, one of which is hollow to house and securely hold at least part of the other stone, to thus obtain a composite stone.

This principle, in practice, can be subject to modifications and variants, without however departing from the scope of the present protection.

Thus, for example, the outer hollow stone consists of two or more elementary parts, joined to each other to house and securely hold, possibly with the aid of cements, the outer stone, which may in turn also consist of two or more elementary stones arranged in mosaic form and held by the hollow stone so that a part of its surfaces extend through apertures provided by said hollow stone. The mating surfaces of the two or more composite stones may be arranged radially with vertical or horizontal trend, with respect to the composite stone. In this latter case, the hollow stone consists of two overlapping elements the top element of which being annular shaped to allow projection from its aperture of the stone or stones housed in the cavity of the stone considered.

An advantage of the stone described above is that trinkets and jewels with ornamental and precious stones held in place in a suitable manner such as to ensure not only a secure hold but also a pleasant appearance may be obtained, without substantially affecting the cost of the jewel.

A further advantage of the stone described above is that jewels are obtained using ornamental or precious stones which would otherwise be difficult to use in the production of jewelry, both for their limited size and for their geometric characteristics as these stones alone do not render it possible to achieve the desired aesthetical results, whilst according to this invention it is possible to combine, without limitation, stones to each other which have different physical characteristics, especially with regard to their color and initial form.

The invention will now be explained in the following description which makes reference to the attached drawings which illustrate, by way of exam ple,some forms of embodiment of the composite stone according to the invention. In the drawings: FIGURE 1 shows on an enlarged scale and in partial cross section a composite stone according to the invention; FIGURE 2 is a plan view with some parts removed; FIGURES 3 and 4 are similar representations of a first variant in the manufacture of the composite stone; FIGURE 5 shows, in vertical cross section, a composite precious stone consisting of three elementary stones; FIGURE 6 is a plan view of a further variant in the manufacture of a composite polygonal stone.

With reference to Figures 1 and 2, the composite stone illustrated consists of a center stone A and a hollow stone B which houses and retains the first stone, at least in part. Said stones may consists of natural stones and/or synthetic stones of the desired form. In the case illustrated, hollow stone B consists of two complementary parts, upper part B1 and lower part B2, the first of which being provided with a circular or polygonal aperture B3 through which appears the upper part of inner stone A.

The internal surfaces of complementary stones B1 and B2 are inclined in opposite directions to form undercut annular surfaces B4 and B5 to hold firmly and securely inner stone or stones A.

Again in the case of Figures 1 and 2, com plementarystones B1 and B2 having mating surfaces B6 for said complementary stones, which surfaces may have parts in relief which are joined and/or knurled for the purposes to be described hereinunder and to ensure the radial positioning among the complementary stones.

The two complementary stones B1 and B2 are securely joined to each other, so as to form hollow stone B, by means of suitable cement such as, for example, that used to join optical parts, in order not to alter the physical characteristics of said hollow stone B. It is obvious that resin based cements, polymerizable, epoxy, butylic, cyanoacrylic or similar, may also be used.

With reference to the aesthetical effects which are desired to be achieved, the outer surfaces of complementary stones B1 and B2 may be either smooth or faceted or even formed by a plurality of stones arranged as a mosaic; moreover, said stones may be provided with holes or apertures for the direct penetration of light.

The composite stone shown in Figures 3 and 4 is similar to that considered above and the same or equivalent parts are identified by the same reference symbols. In said figures, hollow stone B consists of two or more complementary radial parts, two (B1 and B2) in the case illustrated, the mating surfaces of which B6 are vertical and hold a thin layerorfilm of suitable adhesive.

The composite stone illustrated in Figure 5 is a variant of those shown in Figures 1 to 4; in this variant, the two or more elementary stones A and B are grouped and assembled in a third hollow stone C. Said elementary stones: central stone A and hollow stone B have characteristics identical to those considered in Figures 1 to 4, except that said third stone C can hold said elementary stones secured tightly to each other, without the aid of cements or adhesives.

Furthermore, said hollow stone C consists of two parts, upper part C1 and lower part C2, both of which are annular, the mating surfaces C3 of which may be joined to each other by suitable cements to fix and maintain soundly joined to each other the elements constituting composite stone A-B. To achieve a pleasing appearance and improved light effects on composite stone A-B, the bottom wall of element C2 of the third hollow stone C may be provided with suitable located apertures or holes, apt to consent the passage of light.

The variant considered to Figure 6 shows a composite stone A-B-C consisting of three elementary stones: internal stone A and hollow stones B and C, the latter of which, and in particular its top part C1, is square in shape and houses and holds in place the first two stones.

Thus it is possible to obtain jewels and ornaments having the desired decorative and aesthetic characteristics, using stones of any type, form or origin.

Considering the aesthetic effects obtainable with the composite stones according to the invention, economic results are also achieved in view of the possibility of utilizing rationally stones of limited size which would hardly be utilizable otherwise, to produce the usual gems or similar ornaments which, in orderto have the desired aesthetic aspect, must posses the due dimensions to then be cut and shaped as required.

It is understood that the present protection also extends to the jewels and trinkets provided with stones according to the invention.

Other modifications and variants may also be introduced, especially with regard to the end use of the stones. However, such modifications and variants remain within the scope of the invention.

Claims (9)

1. An ornamental stone for trinkets and jewels in general, characterized in that it has at least two elementary shaped stones, one of which is hollow to house and securely hold at least part of the other stone, to thus obtain a composite stone.

2. An ornamental stone according to claim 1, characterized in that the hollow stone is annular shaped and that its inner part is provided with inclined surfaces to hold in contrast the inner stone or stones.

3. An ornamental stone according to claims 1 and 2, characterized in that the hollow stone consists of at least two complementary parts, at least one of which is annular shaped to house the inner stone, said complementary parts having annular mating surfaces which may be joined.

4. An ornamental stone according to claim 3, characterised in that the mating surfaces in the annular part of the hollow stone are provided with surfaces apt to receive an adhesive or cement to ensure joining of said complementary parts.

5. An ornamental stone according to claims 1 to 4, characterized in that the complementary parts of the hollow stone have mating surfaces oriented in the horizontal or vertical direction with respect to the composite stone under consideration.

6. An ornamental stone according to claims 1 to 5, characterized in that the internal stone consists of two or more elementary stones having different physical characteristics such as cut, color and orientation, etc., to form mosaic-type surfaces providing the desired aesthetic aspects.

7. An ornamental stone according to one or more of claims 1 to 6, characterized in that the hollow stone consists of two annular elementary stones, one of which allows a part of the internal stone to project.

8. An ornamental stone according to claims 1 to 7, characterized in that it has a number of hollow stones holding in their interior the composite stones.

9. An ornamental stone according to claims 7 and 8, characterized in that the outermost hollow stone is polygonal in shape.

10 Ajewel or triket in general, characterized in that it has one or more composite stones according to one or more of claims 1 to9.

it. An ornamental stone, substantially as hereinbefore described with reference to, and as shown in, the accompanying drawings.

9. An ornamental stone according to claims 7 and 8, characterized in that the last hollow stone is polygonal in shape.

10. Ajewel or triket in general, characterized in that it has one or more composite stones according to one or more of claims 1 to 9.

11. An ornamental stone, substantially as herein before described, with reference to, and as shown in, the accompanying drawings.

New claims or amendments to claims filed on 7 Feb 1983.

Superseded claims 1-11.

1. An ornamental stone fortrinkets, jewels and the like comprising at least two elementary stones combined and joined to each other, in which at least one inner stone is housed and held in the cavity of a second outer stone which is constituted by at least two complementary parts, at least one of the parts defining an opening through which a portion of the inner stone projects, and the parts having opposed inclined surfaces which cooperate with corresponding surfaces of the inner stone to retain the inner stone securely in the cavity.

2 An ornamental stone as claimed in claim in claim 1 the stone has a central longitudinal axis and the outer stone comprises two complementary parts joined to each other in a coupling plane coincident with the axis.

3. An ornamental stone is claimed in claim 1 in which the stone has a central longitudinal axis and the outer stone comprises two complementary parts joined to each other in a coupling plane perpendicular to the axis.

4. An ornamental stone as claimed in any one of the preceding claims in which the mating surfaces of the hollow outer stone are provided with surfaces apt to receive an adhesive or cement to ensure joining of said complementary parts.

5. An ornamental stone as claimed in any one of the preceding claims in which the outer stone is generally annular.

6. An ornamental stone according to claims 1 to 5, characterized in that the internal stone consists of two or more elementary stones having different physical characteristics such as cut, color and orientation, to form mosaic-type surfaces providing the desired aesthetic aspects.

7. An ornamental stone according to one or more of claims 1 to 6, characterized in that the hollow stone consists of two annular elementary stones, one of which allows a part of the internal stone to project.

8. An ornamental stone according to claims 1 to 7, further comprising a number of hollow stones holding in their interior the said inner and outer stones.