WO1997009897A1

WO1997009897A1 - Method of production of jewels by castpress of the same or of different metals with automatic fitting and sticking

Info

Publication number: WO1997009897A1
Application number: PCT/GR1996/000020
Authority: WO
Inventors: Dimitrios Exarchou
Original assignee: Dimitrios Exarchou
Priority date: 1995-09-12
Filing date: 1996-09-12
Publication date: 1997-03-20
Also published as: GR1002354B; AU6886596A

Abstract

The invention refers to the original jewel. First we make a rubber mould. Then we take away a part of the original jewel and we leave around small teeth. We make a second rubber mould of it and take wax of the second mould. The wax in the castpress of metal. The jewels of the castpress are placed one by one in the first rubber mould. We make 'trees' of it. Then we place them in the MOUCHLOS. Unwaxing of the MOUCHLOS, placing in the oven of the MOUCHLOS, melting of the metal in the castpress, placing of the MOUCHLOS in the castpress. In this way with the small teeth which the cut jewels have, with the temperature of the MOUCHLOS and the power of the castpress we succeed the automatic fitting and sticking of the jewels of the same or of different metals. The advantage of this invention is that the production of the jewels of the same or of different metals is done at the same time, without filing, with automatic precise fitting and sticking without the intervention of human hands. We succeed a mass production - we avoid manual labour (filing, fitting, sticking, of the same or different metals of the jewels).

Description

DESCRIPTION OF THE INVENTION

Method of production of jewels by castpress of the same or of different metals with automatical fitting and sticking. The invention refers to the original jewel. First we make a rubber mould. We take a part of the original jewel and we leave around small teeth. We make a second mould of rubber and we take wax from the second mould. The wax in the castpress of metal. The jewels from the castpress are put one by one in the first rubber mould. We make "trees" of it.

Then we put them in the MOUCHLOS (= part of the castpress in which we put the wax "trees" together with the plaster). Unwax the MOUXLOS, MOUCHLOS in the oven, solving metal in the castpress, placing MOUCHLOS in the castpress. In this way with the small teeth which the cut jewels have, with the heat of the MOUCHLOS and the power of the castpress, we make the first automatic sticking and fitting of the jewels of the same or of different metals. The above method of producing jewels, with the castpress, of the same or of different metals is wellknown. The production of jewels of the same or of different metals, as known, is done seperately. with the result that they have much open space between them. Afterwards we must file them. fit them, and then stick them together with our hands, so that they stay in their place. This method has disadvantages: in the filing of the jewels. in the loss of metal, in the loss of time, in the fitting and the sticking of the jewels, with consequence the increase of the cost, of the production time, and of the labour forces.

The invention consists of the omission of the filing, in the automatic and precise fitting and the sticking of the produced jewels of the same or of different metals.

The advantage of this invention is that the production of the jewels of the same or of different metals happens at the same moment, without filing, with automatic and precise fitting and sticking, and perfect uniformity without the intervention of human hands.

Description of the invention. It refers to a sample of the production method of a jewel brooch, of two metals. In the middle is brass and around is silver with automatic fitting and sticking we produce the original jewel brooch altogether. Then we put it in a rubber mould.

In this mould we make ways more than one way from one end to the other end of the model for the wax, and especially for the brass metal from the castpress. Then we cut from the original jewel brooch with a small saw the central point of the model we have selected, and during the cutting we will leave around small teeth, according to the size of the jewel.

We will file these teeth at the upper and the lower side. The part we cut from the original model of the broochwill be made a second rubber mould of. From this mould we will make just as many wax pieces as we need for our production.

These wax pieces will be made in the castpreess of brass. We will not file them and we must put them one by one with great technical precision at the point which the model has, the original rubber mould. We close the mould carefully so that the piece of the jewel which we have put inside will not move. We place the mould in the waxbasin, and with the pressure the wax, will fill out the empty points of the mould. In this way we succeed the precise fitting, and the small teeth which the piece of the jewel has, will hold the wax firmly. The jewel brooch that will come from the rubber mould will have in the middle a brass jewel and around wax. Then we make "trees" of it and we place them in MOUCHLOS with plaster. We unwax the MOUCHLOS and we put them in the oven, at a temperature which will allow the pieces of jewel of brass, which are inside the MOUCHLOS, not to melt.

The plaster holds the unwaxed brass pieces of jewel inside the MOUCHLOS with great power and precision. We melt the silver in the castpress, we place the MOUCHLOS in the castpress. In this way the small teeth which the pieces of jewel have, with the suitable temperature of the MOUCHLOS and with the power of the rotation of the castpress will succeed the automatic precise fitting and sticking of the metals (brass, silver) of the jewels.

Claims

C L A I M S

1. Method of producing jewels of the same or of different metals with an automatic way of fitting and sticking, characterized by making the first rubber mould from the original jewel. Then we take, the part we have selected of the original jewel, away, and at the time of the removal of the part of the original jewel, we will leave with the little saw, small teeth around. Then we will file these teeth on the upper and lower side, at half the thickness of the piece that was cut from the original jewel. The part of the original jewel with the small teeth, that was cut. will be made into the second rubber mould. From the second rubber mould we make just as many wax pieces as we want jewels. These wax pieces will be made of metal, that we have selected, in the castpress. Then these pieces of metal jewels from the castpress will be placed one by one with great precision at the place they have in the design in the first rubber mould. We place the rubber mould in the waxbasin, the waxbasin with the pressure it has, will do the precise fitting of the cut jewels, that have teeth, with the wax. Then those pieces of jowel with wax will be placed in "trees" in MOUCHLOS with plaster.

The plaster holds the pieces of the jewels with the wax at great precision. Then we unwax the MOUCHLOS. We place the MOUCHLOS in the oven at the suitable temperature, so that the unwaxed pieces of jewel which are inside the MOUCHLOS will no melt.

We melt the same or a different metal in the castpress and we place one by one the MOUCHLOS in the castpress. With the sma l l teeth that have the pieces of jewels that are in the MOUCHLOS, with the temperature of the MOUCHLOS in the oven, wi th the great power of the castpress, we succeed the automatic fi tting and sticking of the jewels of the same or of different metals.

2. The method according to the claim Nr. 1 is characterized by the jewel s which have no stickings between them and which have automatic perfect fitting, uniformity and sticking of the produced jewel s of the same of di fferent metals .