CH255473A

CH255473A - Dial for timepiece.

Info

Publication number: CH255473A
Authority: CH
Inventors: Stern Freres S A
Original assignee: Stern Freres Sa
Priority date: 1946-12-28
Filing date: 1946-12-28
Publication date: 1948-06-30

Description

  

  Cadran pour pièce d'horlogerie.    L'objet de la présente invention est un       cadran    pour pièce d'horlogerie muni de signes  métalliques     rapportés-.    On a déjà utilisé pour       ('orifectionner    ces signes rapportés,     :de-        l'ar-          ";ent,    de l'or, du laiton, etc.; dans le cas de       pigne    en métaux ou     alliages    non résistants       aux    agents de     corrosion,    la surface supérieure       (Les    signes, souvent concave, est revêtue d'une       couche    d'émail;

   mais la surface inférieure et       1,pieds    de fixation au cadran demeurent non       l)rotégés.    Le cadran faisant l'objet de la     pré-          :entc    invention est caractérisé en ce que les       ,,ignes    métalliques rapportés sont en une ma  tière composée au     moins    en partie par un mé  tal léger et traitée par oxydation de façon       que.        lesdits    signes soient protégés sur toutes  leurs surfaces.  



  Les signes peuvent être en aluminium, en  magnésium ou en alliages d'aluminium ou de       magnésium.    Ils peuvent être oxydés avant la  pose,     par    voie chimique ou électrochimique,  de préférence par oxydation anodique. Un des  principaux avantages que présentent les     ca-          drans    avec signes rapportés en métal léger  oxydé consiste dans le fait que ces     signes          peuvent    être     colorés,    par teinture, par exem  ple, suivant l'un des nombreux procédés     con-          nits    de teinture dans le bain même d'oxyda  tion ou de bain :séparé après oxydation.

   On  peut ainsi obtenir des effets décoratifs     parti-          t-ulièrement        intéressants    en fixant les, signes  métalliques ainsi -colorés sur des cadrans en       cuivre,    laiton, argent ou même aluminium,       t.i,aités    par les procédés     usuels    de décoration,    par exemple dorés, argentés, grenés, émaillés,  etc. On peut même fixer les signes en métal  léger oxydé, teint ou non, sur des cadrans  en aluminium oxydé, teint ou non.  



  Les pieds de fixation peuvent être sortis  de la masse des signes métalliques par fluage  avant le traitement oxydant.



  Dial for timepiece. The object of the present invention is a dial for a timepiece provided with added metal signs. It has already been used for ('orifectioner these reported signs,: de- ar- "; ent, gold, brass, etc .; in the case of pin in metals or alloys not resistant to corrosion agents, the upper surface (The signs, often concave, is coated with a layer of enamel;

   but the lower surface and the feet for fixing to the dial remain not l) rotégés. The dial which is the subject of the pre-: entc invention is characterized in that the added metal signs are made of a material composed at least in part by a light metal and treated by oxidation so that. said signs are protected on all their surfaces.



  Signs can be made of aluminum, magnesium, or aluminum or magnesium alloys. They can be oxidized before laying, chemically or electrochemically, preferably by anodic oxidation. One of the main advantages of frames with signs of oxidized light metal is that these signs can be colored, by dyeing, for example, by one of the many known bath dyeing methods. even oxidation or bath: separated after oxidation.

   Particularly interesting decorative effects can thus be obtained by fixing the metal signs thus colored on copper, brass, silver or even aluminum dials, ti, aided by the usual decorative processes, for example gilded, silvered. , grained, enamelled, etc. We can even fix the signs in oxidized light metal, dyed or not, on oxidized aluminum dials, dyed or not.



  The fixing feet can be taken out of the mass of the metal signs by creep before the oxidizing treatment.

Claims

CLAIM I: Dial for a timepiece provided with attached metal signs, characterized in that said signs are made of a material composed at least in part by a light metal and treated by oxidation so that said signs are protected on all their surfaces. faces. SUB-CLAIMS 1. Dial according to claim I, characterized in that said signs are colored. 2. Cadram. Following claim I, ca actérisé in that said signs are aluminum.

at. Dial according to Claim I, characterized in that the said signs are in ma.- bnnesium. 4. Dial according to claim I, characterized in that said signs are made of a light metal alloy. 5. Dial according to claim I, ca ractérisé in that said signs are chemically oxidized material. 6. Dial according to claim I, characterized in that said signs are material treated by anodic oxidation.

?. Dial according to claim I and sub-claim 6, characterized in that said signs i are colored by dyeing after anodic oxidation. CLAIM II: A method of manufacturing a dial for a timepiece according to claim I, characterized in that the signs are reported after having treated them by oxidation. SUB-CLAIMS: 8. A method according to claim II, characterized in that they are reported. signs after treating them with oxidation and dyeing. 9.

Process according to Claim II, characterized in that the fixing feet are taken out of the mass of the signs by creep, the signs are treated by oxidation and fixed to the dial. once completed.