US1252966A - Setting for precious stones. - Google Patents

Description

APPLICATION FlL-ED OCT-1|, I91?- Patented Jan. 8, 1918.

ABRAHAM SUDERGV, OF NEXV YORK, N. Y..

SETTING FOR PRECIOUS STONES.

essence.

Specification of Letters Patent.

Patented Jan. 8, 1918.

Application filed October 11, 1917. Serial No. 195,921.

I To all whom it may concern:

Be it known that I, AB AHAM Sunnnov, a citizen of the United States of America, residing at New York, N. Y., have invented a new and useful Setting for Precious Stones, of which the following is a specification.

This invention relates to the setting of precious stones or jewels and the objects of the invention are to provide a cluster setting of such construction as to give the appearance of a single large out stone.

A special object is to construct the setting in such a way as to obscure the lines of separation between the several stones and thus enhance the efiect of a single stone.

In the accomplishment of the foregoing I mount the individual stones in a supporting base or head with a number of the small stones grouped about a central stone which is supported above the plane of the surrounding stones and with its edges substantially or approximately overlying the edges of the surrounding'stones, said central stone being supported on bits or prongs rising from the central portion of the head.

Other features and details of the invention will be understood as the specification proceeds.

In the accompanying drawing 1 have illustrated the invention embodied in a practical form but it will be understood that changes and modifications may be made without departing from the true spirit and scope of the invention.

In said drawing Figure 1, is a plan view of the setting mounted in a finger ring.

Fig. 2, is a side elevation thereof.

Fig. 3, is asectional view taken substantially on the plane of the line 3-8 of Fig. 1.

Fig. 4, is a detail view of the blank from which. the back of the setting is made.

Fig. 5 is a top View of the head of the setting before the stones are applied.

Fig. 6 is a bottom plan view of the under frame or bodyof the setting.

Fig. 7 is; a sectional View of dies for strikin up the crown or head of the setting.

The ody of the setting comprises a base or head member 7 which may be crowned as indicated in the drawing and to which is attached the back member 8. This back member is pyramidal in shape and is made from a starhaped blank like that shown at 9 in Fig. 4:, the radiating arms of this blank being longitudinally slotted as indicated at 10 and the center of the blank being perforatcd as at 11. When the blank is bent up into pyramidal form it is secured to the r1 of the head piece by soldering or in any other suitable way. When thus ussembled these slotted arms of the back piece give the effect of the rear facets of a single cut stone the size of the complete setting, as indicated in Fig. 2.

The crown or head is made with a series of ewel seats 12 grouped about a central jewel seat 13. These seats may be provided by simply punching openings in the crown of a proper size to receive the stones. 14L designates the central crown stone and 15 the side stones grouped thereabout. This central stone as shown, in Figs. 1, 2 and 3, is located above the plane of the side stones and with its edges approximately or substantially overlying the adjacent edges of the side stones. ,The central stone thus in eifect hides or obscures the joints between the several stones so that when viewed from above the setting very closely resembles a single large cut stone, the central stone giving the effect of the table and the side stones appearing as the side facets of a single cut stone. I

To support the crown stone in this upraised position I provide the upstanding bits or prongs 16 disposed about the centra jewel seat 13 and upstanding from the face of the crown a suificient distance to hold the central stone at the proper elevation. In practice these so-called bits are disposed at the periphery of the central jewel seat and at points in between the adjoining side jewel seats 12. This di position of the upstanding prongs in the triangular spaces formed at the junction of two adjoining side jewels with the central crown jewel conceals the prongs to such an extent as to render them unnoticeable when viewed from above and this efiect is further heightened by making the prongs of platinum or similar metal. In practice it is preferred to make the entlre head and back of platinum polished to refleet and give off the light of the diamonds or other stones employed.

Prongs'17 may be also provided at or formed up from the rim of the head 7, as shown in Figs. 1 and 2, to assist 1n holding the side stones in their seats these prongs stones and said side stones are rim of the setting at points in between the jewel holdlng prongs 17 on the rim of the crown. This securely holds the setting agalnst any lateral or rotary movement in the supporting prongs.

In Figs. 5 and 6 the bare frame or body of the setting is illustrated. The first of these views shows how the bits for the central stone may be struck up from the mate rial of the crown and Fig. 6 shows how the arms of the pyramidal back member sub stantially come to a point and how the 7 spaces between these arms may be scoredvor .grooved as at 19 toemphaslze the separation of these arms.

1 Fig. 7 illustrates how the crown may be formed between upper and lower dies 20 and 21, the lower die being formed with protrusions 22 and 23 to form the central and surrounding jewel seats respectively and with recesses 24 around the central protrusion into which the metal is forced by the upper die to form the upstanding set of prongs 1'6.

I claim .1. A cluster setting comprising, a base having a central seat for a stone and a plurality of seats grouped about said central seat, stones engaged in said latter seats and a stone engaged in the central seat with its adjacent edges substantially overlying the edges of the surrounding stones to thereby effect the appearance of a continuous stone.

2. A cluster setting comprising, a base having a central passage and surrounding passages grouped aboutsaid central passage, 4 upstanding prongs, disposed about the central passage, a stone supported by said prongs above the general plane of the base and stones seated in the surrounding passages, and with its edges overlying the adjacent edges of the side stones to thereby simulate the appearance of the top of acontinuous stone.

3. A. cluster setting comprising, a; base having a central passage and surrounding 5 passages disposed about said central passage, prongs on the rim portion of said head at the edges of said latter passages, stones seated in said passages'and held by said prongs, said prongs occupyingthe, spaces between adjacent stones, upstanding prongs on the head about the central passage and a stone supported by said upstanding prongs I with its edges substantially overlying the adjacent edges of the surrounding stones.

- a. A cluster setting comprising, a head having a central passage and surrounding passages disposed about said central passage, prongs on the rim portion of said head at the edges of said latter passages, stones 7 seated in said passages and held by said prongs, upstanding prongs on the head about the central passage,-a stone supported by said upstanding prongs with its edges overlying the adjacent edges of the surrounding stones and supporting prongs engaging the rim portion of ,the base between the prongs at the outer edge thereof.

ABRAHAM SUDEROV,

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