FR2609605A1 - INVISIBLE CRIMPING MOUNT FOR STONES WITH CYCLES IN ARETES WITH INSERT BELOW SHEETS - Google Patents

Abstract

THE PRESENT INVENTION CONCERNS AN INVISIBLE CRIMPING FRAME FOR ONE OR MORE STONES, EACH OF WHICH HAS A CYLINDER HEAD INCLUDING AT LEAST THREE AREAS NOTCHED BELOW THE SHEET, BY A DIHEDRAL NOTCH. IN ACCORDANCE WITH THE INVENTION, THE CRIMPING IS CARRIED OUT BY A CLAW 11 INCLUDING A HEAD 12 LIKELY TO ENGAGE IN THE NOTCH 2 OF A STONE, THIS HEAD BEING ASSOCIATED WITH A ROD 13 ENGAGING IN A DRILLING 7 IN COINCIDENCE OF A GRID 6 ENCLOSING THE CYLINDER HEAD (s) OF THE STONE (s) OR IN A COINCIDENT DRILLING OF A DISTRIBUTED BASE PLATE TO BE LOCATED BEYOND THE TOP OF THE CYLINDER HEAD (s), THE SAID ROD BEING LIKELY TO BE SOLIDARIZED , WITH ADJUSTMENT OF ITS USEFUL LENGTH, WITH THE SAID GRID OR PLATE, FOR EXAMPLE BY WELDING 15. THE INVENTION ALLOWS A PAVING CONSTITUTED BY SEVERAL STONES SENSITIVELY JOINING WITH INVISIBLE CRIMPING.

Description

Invisible crimping frame for chiseled edge stones with

notch below the leaflet.

  Many types of inverted crimpers have already been proposed.

  to form tessellations of several gutter stones

  below the leaflet. In FR-A-802,367 the carstones

  the constituent parts of the pavement comprising several rows of stones.

  are fitted, in the edges of the breech, with

  gules under the leaflet and the parts

  so many projections are engaged in the notches of stones and in

  housing provided in the mount itself. Such a mountain

  ge is mechanically complex to achieve because it requires a

  re comprising partitions dividing two rows adjacent to pier-

  with, along their upper edge, grooves in which

  are engaged the ends of keys comprising at the ends

  Moved from both edges triangles engaging in

  the edges of the cylinder heads stones these partitions being together

  at one of their ends by a transverse partition and a por-

  with protruding triangles coming against the extremity

  rows of stones with its triangles engaged in

  sizes of the terminal stones to maintain said stones ter-

  and close the mount on the opposite side to the transverse bulkhead.

  the. This type of frame for invisible crimping presents, besides

  complexity of its implementation mentioned above, the disadvantages

  that the level of the stone tables is entirely

  undermined by the location of the grooves made in the partitions to receive the keys and the level of the cuts made in the cylinder heads and can not be adjusted to the assembly and that the

  stones must have notches with upper and lower faces

  parallel to the table, which, in particular in the case of

  bright, removes fires and makes the stone gray.

  In order to overcome the drawbacks of the notches with parallel faces made in the brilliants, it has been proposed, in FR-A-2,580,541, to make crimping notches cut into the edges of the

  the diamond head, these cuts being prismatic with

  these defined with respect to the cleavage tables of the diamond. These

  crimping sleeves do not lend themselves to the crimping proposed in

  FR-A-802,367 and do not allow, either, the invisi-

  previously known, in which the intermediate rails are

  between two rows of stones are engaged in grooves made in the faces of the cylinder head of said stones and in housing of the frame, this conventional method also not offering

  no possibility of adjusting the level of the stone table

  ties. In addition, these crimping processes are exclusively

  cables to square or emerald stones but not to diversions

  its "glossy" sizes with rounded or hexagonal

  the tables of some of the stone stones that are staggered or

  thrown to create special effects.

  The present invention aims to remedy the drawbacks

  above and it relates to an invisible crimping mount

  for one or more stones each having a cylinder head

  carrying at least three notched edges, below the feuilietis, by a dihedral notch characterized in that the crimping is

  made by a claw with a head capable of

  in the notch of a stone, this head being in solidarity with a

  gege engaging in a drilling in coincidence of an interlocking grid

  both the yoke (s) of the stone (s) or in a hole in coincidence of a base plate spaced to be beyond the top of the yoke or heads, said rod being capable of being secured, with adjustment of its useful length, with said grid

or plate, for example by welding.

  In the case of several stones assembled in the form of a stone landscaping substantially attached, a claw is provided in law

  the junction point of the laminates of at least three juxtaped stones

  the ends of which culminate at the point of

  are notched, the head engaging in the notches of the arches

  ending at this junction point.

  The head of the claw may have dihedral faces that

  exactly or not in the notches of the edges of the stones by forming a claw in support on the two faces or a face and a

  top of the notch of each ridge. In the case of paving

  with square or emerald stones, the head is pre-

  two square-shaped pyramids contiguous to each other

  their bases or a single pyramid whose faces have the same inclination

  only the faces of the notches of the stones. The head can also

be conical or spherical.

  The rod is preferably threaded so that its length can be adjusted by screwing into a threaded bore of the grid. The stem

  and / or the grid are made of a sufficiently deformed material

  elastically for a crimping stone between claws

  can be engaged by its breech between the heads and put in place

  this by driving until the heads engage in the

  check marks by spacing said heads. After adjusting the level of the heads by screwing or unscrewing so that the stone tables are at the desired level, the rods can be welded before or after the placement of the stones, the portion protruding below the

grid being cut and polished.

  Crimping the peripheral stones of the set set

  have at least one of their notches engaged on a tie head

  its with the notches of the adjacent stones, can be completed

26096CG

  either by a visible peripheral crimping called "in closed series" real-

  by a peripheral metal sheet of which at least parts

  The edges of the upper edge are folded on the laminate of said stones bordering the pavement, either by an invisible crimping with peripheral claws whose heads engage in the peripheral notch or notches of the peripheral stones, the parts of the heads of the claws that overflow on the sides of the pavement being

  preferably removed after setting the stones by filing or

  ge and said claws being possibly masked by a coffra-

  metal geometry or reported patterns joining the periphery of the

  grid to the parts of the facets of the cylinder heads located between the

and the leaflet.

  The invention is applicable with a flat or faceted grid

  or having at least one radius of curvature to obtain

  placed in any desired form.

  The invention will be described in more detail below with reference to the accompanying drawing in which:

  Fig. 1 is a perspective view of a cut stone se-

  the method described in FR-A-2,580,541 with notches in the cylinder head in the form of dihedral to illustrate the stones to which the invisible crimping according to the invention applies; Fig. 2 is a side elevational view of three stones according to Figure 1 contiguous by their sides in a row with the claws and the grid schematically dotted; Fig. 3 is a plan view of the grid; Fig. 4 is a perspective view of a claw; Fig. 5 is a detail view of the attachment of a claw in the grid; Fig. 6 is a sectional view similar to Figure 2 with peripheral crimping in closed series; Fig. 7 is a view similar to FIG. 6 with crimping of the peripheral stones by grifts and FIG. 8 a crimp view of FIG. 7 with invisible formwork. In the drawings, reference numeral 1 designates a stone that can be

  a diamond but also another precious stone, a precious stone

  ne, an ornamental stone or any other mass of similar shape

  any. In the examples shown and for simplicity

  the stones 1 are represented squared but the

  could be of another type, for example hexagonal if the

  stones must fit together exactly or of another type, the

  vention is not limited to a specific size. Reference 2 denotes the notches in the form of dihedron made on the edges of the cylinder head with one of the faces 3 of the dihedron substantially parallel to

  the polished table 4 and the other side 5 inclined and parallel to a

  cleavage table in the case of diamonds. The notches

  could be constituted by differently inclined faces,

  in the case of gemstones with no cleavage tables.

  In the drawings, the reference 6 designates the grid. In the examples

  ples illustrated the grid 6 is intended for the assembly of nine stones

  1 identical form and its form should be adapted in the case of a

  different stones or different sizes. If we consider

  give square diamonds 28 / 10mes (2.8mm) as examples

  in the following description, the grid 6 can be made to

  from a square metal plate having a thickness selected in practice between 1.2 and 1.6mm and whose side is greater than 2.8 x 3 = 8, 4mm for example 9mm4. This plate is perforated by drilling nine holes distributed in a network with center-to-center spacing

  2.8mm and then enlarging these holes by the technique of

  usual ge to achieve nine windows 7 separated by surrounding dishes 8 having a width of 0.9 to lmm. with chamfers 9 to fit the cylinder heads of the stones 1 precisely so that

  Tables 4 are level. We then pierce at the points of in-

  tersection of the axes of the dishes of the holes 10 for example to the diameter

  0.6mm which are then tapped at 0.7mm.

  Claws 11 are then made (FIG 4) which comprise a head 12 and a rod 13 threaded to 0.7mm. The head 12 is a square-based pyramid having dimensions function of the notches 2, such that the claw is in the axis passing through the junction point of four stones 1 contiguous, the edges of the base 14 of the head 12

  engage in the notches 2 with the base 14 resting on the

  these 3 of the four notches of the four stones and the lateral faces

  the heads substantially in abutment against the facets 5 of the

  ches. We start by mounting the four claws 11a of the four holes 10a surrounding the central stone and it is verified that the four heads of the claws are at the same height by adjusting them possibly by screwing or unscrewing the rods 13 and that the height of the bases 14 corresponds well at the level of the faces 3 of the notches of the stone

  placed in its dwelling 7, which can be done by placing

  this a stone in a peripheral housing.On then welded 15 rods 13 claws with the plate 16 and eliminates the protruding portion 16 of the rod 13 and polit. It is then possible to engage the central stone between the four heads 12 of the four claws 11a, said heads moving slightly apart to allow the edges of the bases 14 to pass under the effect of the elasticity of the dishes 6 and

stems 13.

  The peripheral stones are then assembled either by

  closed weaving as shown in Figure 6, either by indentation

  visible as illustrated in Figures 7 and 8.

  To make a closed set a band 17 is folded squared and

  in order to surround the peripheral stones whose

  central plants were engaged on the heads 12 of the central claws.

  trals lla. In the base plate 6 used in this mode of

  crimped, the peripheral holes 10 have not been drilled and the

  mounts of this wafer were reduced so that the sides

  go through the theoretical axes of said holes. Band 17 is

  18 at the periphery of the wafer 6 and its upper edge.

  is folded down in 18 on the leaflet of the peripheral stones.

  as in a classical closed setting.

  To achieve an invisible seam one can set up grif-

  the peripherals llb in the threaded peripheral holes 10 and they are set and welded as claws 1la, after which we put

  in place the peripheral stones. We then eliminate by

  ge and polishing the part of the peripheral claws llb and the base plate 6 which protrudes from the edges of the stones to leave only half-claws at the ends of the central plates and quarter claws in the corners. 20 is then welded on the periphery a frame 19 or patterns which form a body with the edge of the wafer 6 and the half and quarter claw and whose upper edge 21 is applied against the cylinder heads

  stones between the leaflet and the top of the claws. He se-

  It would also be possible to bring the half and quarter heads of the claws 11b to the inner face of the frame 19 which would then be closed around the periphery of the base plate 6 and the stones with the claws engaged in the notches 2 before being

  closed by welding and soldered on the periphery of the wafer 6.

Claims (6)

claims   1. Invisible crimping frame for one or more stones each having a yoke having at least three notched edges, below the leaflet, by a dihedral notch, characterized in that the crimping is performed by a claw (11) having a head (12) engageable in the notch (2) of a stone, this head being secured to a rod (13)   engaging in a bore (7) coinciding with a grid (6)   casing the head (s) of the stone (s) or in a hole   in coincidence of a baseplate spread apart to lie   there from the top of the cylinder head or heads, said rod being capable of being secured, with adjustment of its useful length, to said   grid or plate, for example by welding (15).   2. Frame according to claim 1 for producing a pavement   ge consisting of several stones sensibly joined, characterized in that a claw (11) is provided at the right point   junction of the laminates of at least three stones (1) juxtaposed   those whose yoke ends at the junction point are notched (2), the head (12) engaging in the notches (2)   edges leading to this junction point.   3. Frame according to any one of claims 1 and 2,   characterized in that the head (12) is constituted by two pyramids   square bases joined by their bases or a single pyramid   whose faces have the same inclination as the faces (5) of the check marks (2) stones.   4. Frame according to any one of claims 1 to 3,   characterized in that the shank (13) of the claw 11 is threaded   so that its length can be adjusted by screwing into a tap (10) of the grid (6).   5. Frame according to any one of claims 1 to 4,   characterized in that the crimping of the peripheral stones (la)   of the crimped assembly which have at least one of their notches (2) engaged   on a connecting head (12) with the notches of the adjacent stones.   centes, is completed by a visible peripheral crimping (17)   said "in closed series" made by a metal foil peripheral   at least parts of the upper edge (18) are folded   killed on the laminate of the stones bordering the pavement.   6. Frame according to any one of claims 1 to 4,   characterized in that the crimping of the peripheral stones (la)   of the crimped assembly which have at least one of their notches (2) engaged   on a connecting head (12) with the notches of the adjacent stones.   centes, is completed by an invisible crimping with peripheral claws (llb) whose heads (12) engage in the peripheral notch (s) (2) of the peripheral stones, the parts of the heads of the claws which overflow on the sides of the pavement being   preferably removed after adjustment of the stones by filing or grinding   and said claws are possibly masked by a cof-   metal frage (19) or attached patterns joining the periphery   from the grid to the parts of the cylinder head facets be the notches and the leaflet.