A METHOD FOR SETTING A PRECIOUS STONE IN A DOMED, COLLET STYLE, SETTING, SECURED ON A THIN WALLED METAL JEWELRY MODEL

METHODE POUR SERTIR UNE PIERRE PRECIEUSE DANS UNE MONTURE EN FORME DE DOME DE TYPE COLLET FIXEE SUR UN MODELE DE BIJOU EN METAL A PAROIS MINCES

English Abstract

The present invention relates to a method for setting a precious
stone in a thin walled metal jewelry model and consists of the
following steps, providing a thin walled, expendable, castable in
metal jewelry model, a domed, collet style, expendable, castable
in metal, stone setting part that includes a series of bonded
inverted 'L' stone setting members on it's undersurface, of
bonding the collet stone setting part with the series of inverted
'L' setting setting members over a pierced hole in the model, of
casting the assembled unit, comprised of the model, the domed,
collet style stone setting part with the bonded inverted 'L'
stone setting members, in metal, of inserting a stone to be set
between the 'L' stone setting members then bending the members
inward to the under conical shape of the stone.

French Abstract

Cette invention concerne une méthode pour monter une pierre précieuse dans un modèle de bijou en métal à parois minces et elle comprend les étapes suivantes : fournir dans un modèle de bijou en métal à parois minces, non récupérable, coulable une pièce pour monter une pierre en forme de dôme, à collet, non récupérable, coulable dans le métal, incluant une série d'éléments de fixation pour monter les pierres en forme de L inversé à la surface inférieure de fixation de l'élément pour monter la pierre à collet avec la série d'éléments de fixation pour monter la pierre en forme de L inversé dans un trou percé dans le modèle, couler l'unité assemblée comprenant le modèle, l'élément pour monter la pierre en forme de dôme à collet avec les éléments de fixation pour monter la pierre en forme de L inversé, dans le métal, l'insertion d'une pierre à monter entre les éléments de fixation pour monter la pierre en forme de L inversé, et courber les éléments vers l'intérieur en fonction de la forme conique de la pierre.

Claims

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THE EMBODIMENTS OF THE INVENTION, IN WHICH, AN EXCLUSIVE PROPERTY
OR PRIVILEGE IS CLAIMED.
A method for setting a precious stone in a cast metal, domed,
collet style, stone setting part, secured on the upper surface
of a thin walled, cast metal, jewelry model, consisting of the
following steps; step a, providing a thin walled, expendable,
castable in metal, jewelry model; step b, piercing the model of
step a, with a predetermined size and location hole; step c,
providing an expendable, castable in metal, domed, collet style,
stone setting part; step d, cutting an angled step of a calculated
size converging upward from the undersurface of the collet style
setting part of step c; step e, providing a series of expendable,
castable in metal, inverted 'L' shaped stone setting members;
step f, bonding the inverted 'L' shaped setting members of step e
onto the undersurface of the collet setting part of steps c and d
with the shorter leg of each 'L' shape extending radially outward
from the periphery of the angled step of step d, and the longer
leg of each 'L' shape extending perpendicularly downward with the
intersection point of the legs located adjacent to the periphery
of the angled step of step d; step g,bonding an assembled unit
comprised of the collet setting part of steps c and d, the series
of inverted 'L' shaped stone setting members, of steps e and f,
over the model's pierced hole of step b; step h, casting in metal
the assembled unit comprised of the model of steps a and b, the
collet style stone setting part of step c, the series of inverted
'L' shaped stone setting members of step e; step i inserting a

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stone to be set between the 'L' stone setting members of step e,
in order that the top angle of the stone rests against the cut
angled step of step d; step j, bending the 'L' setting members of
steps e,f,g,h,i inward to the under cone of the stone.

Description

CA 02634752 2010-08-09
TECHNICAL FIELD
The present invention relates to a method for setting a precious
stone in a domed, collet style, setting secured ona thin walled
metal jewelry model.

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TITLE
A method for setting a precious stone in a domed, collet style,
setting, secured on a thin walled metal jewelry model.

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BACKGROUND OF THE ART
Presently the jewelry industry uses three methods to set precious
stones in jewelry models, each of which, has limitations as
described herewith.
The first method, called bead setting, consists of drilling an
angled hole in the model's surface then placing the stone in the
hole so that the undersurface of the stone's conical shape rests
on the angle of the model's hole and serves in preventing the
loss of the stone through the bottom surface of the model, this
is followed by using a sharp steel graver tool to raise small
beads of metal from the model's surface that are then forced over
the girdle of the stone and serves to prevent the loss of the
stone through the top surface of the model.
The second method called collet setting is similar to bead setting
but instead of raising beads of metal a collet shaped of metal is
raised then forced over the girdle of the stone.
Each of the above methods require a sufficient thickness of model
metal to provide for the beads or collets.
The third method requires providing expendable or metal setting
findings, securing them on the model's surface prior to or
following casting the model in metal and involves the added cost
of the findings, a soldering step and costly labour.
All three of the above methods require work by highly skilled
jewelers and stone setters, whereas the invention can be performed
by personnel of limited skills and produce vastly superior finished
and more secure results.

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SUMMARY OF THE INVENTION
The present invention relates to a method for setting a precious
stone in a domed, collet style, setting part, secured on the
surface of a thin walled, metal jewelry model.
According to one feature of the present invention is that of
providing a thin walled, expendable, castable in metal, jewelry
model.
According to another feature of the present invention is that of
piercing the model with a predetermined size and location hole.
According to another feature of the present invention is that of
providing an expendable, castable in metal, domed, collet style
setting of a predetermined size that includes an angled cut step
converging upward from the undersurface of the collet setting
part.
According to another feature of the present invention is that of
providing and bonding onto the undersurface of the collet setting
part a series of expendable, castable in metal, inverted 'L'
shaped stone setting members, with the shorter leg of each 'L'
shape extending radially outward from the periphery of the angled
cut step on the undersurface of the collet setting part with the
longer leg of each 'L' shape extending perpendicularly downward
with the intersection point of the two legs located adjacent to
the periphery of the angled cut step on the underside of the
collet style stone setting part.
According to another feature of the present invention is that of
applying and bonding the collet setting part with the series of
'L' shaped setting members over the pierced hole in the model.

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According to another feature of the present invention is that of
casting in metal the assembled unit comprised of the model, the
collet setting part with the bonded inverted 'L' shaped stone
setting members.
According to another feature of the present invention is that of
inserting a stone to be set between the perpendicular legs of
the inverted 'L' shaped setting members in order that the top
angle of the stone, as measured from the girdle to the crown
rests against the angled cut step of the undersurface of the
collet sellet setting part..
According to another feature of the present invention is that of
bending the perpendicular longer legs of the inverted 'L' shaped
setting members inward to the surface of the conical undersurface
of the stone, as measured from the girdle down to the culet.

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A BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1. Shows a thin walled, three dimensional, expendable,
castable in metal, jewelry model 100.
Fig. 2. Shows model 100 of fig.1, pierced with a series of
predetermined size and location holes 101.
Fig. 3. Shows an expendable, castable in metal, domed, collet
style stone setting part 102, that includes an angled
cut step converging upward 103 from the undersurface
of the collet stone setting part 102.
Fig. 4. Shows the collet stone setting part 102 with the angled
step 103, with a series of inverted 'L' shaped stone
setting members 104, bonded to the undersurface of the
collet stone setting part 102.
Fig. 5. Shows the unit of fig. 4, bonded over a hole in the
model 101, cast in metal.
Fig. 6. Shows the cast metal unit of fig. 5, with a stone
to be set 105, inserted between the inverted 'L' shaped
stone setting members 104 of fig. 5, with the upper
angle of the stone resting on the angled cut 103 of the
collet setting part 102.
Fig. 7. Shows the 'L' shaped setting members 104, bent inward to
the conical form of the stone 105.

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DESCRIPTION OF THE PREFERRED-EMBODIMENTS
Fig. 1. Shows a thin walled, expendable, castable in metal,
jewelry model 100.
Fig. 2. Shows model 100 of fig.1, pierced with a series of
predetermined. size and location holes 101.
Fig. 3. Shows an expendable, castable in metal, collet style
stone setting part 102, that includes an angled step of
a predetermined size converging upward from the
undersurface of the collet setting part 103.
Fig. 4. Shows the expendable collet style setting part
102 of fig.3, with a series of expendable, castable in
metal, inverted 'L' shaped stone setting members with
one shorter leg of each 'L' shape extending radially
outward and bonded to the undersurface of the collet
setting part and the longer leg of each 'L' shape
extending perpendicularly downward with the intersection
point of the two legs located adjacent to the periphery
of the angled step of 103 of fig. 3.
Fig. 5. Shows the collet setting part 102 of figs. 3 and 4, with
the bonded inverted 'L' shaped setting members bonded
over a pierced hole on the upper surface of model 101 of
figs. 2 and 4, cast in metal
Fig. 6. Shows the cast metal unit of fig.5 comprising the collet
setting part, the inverted 'L' setting parts and the
pierced model with a stone inserted between the 'L'
shaped setting parts resting on the cut angled step of
fig.3.103.

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Fig. 7. Shows the cast unit of fig. 6, with the bonded inverted
'L' shaped setting members, of figs. 4,5,and 6, bent
inward to the under conical surface of the stone.

Representative Drawing