US3206841A - Method for producing a clockwork dial provided with projecting symbols - Google Patents

Method for producing a clockwork dial provided with projecting symbols Download PDF

Info

Publication number
US3206841A
US3206841A US121503A US12150361A US3206841A US 3206841 A US3206841 A US 3206841A US 121503 A US121503 A US 121503A US 12150361 A US12150361 A US 12150361A US 3206841 A US3206841 A US 3206841A
Authority
US
United States
Prior art keywords
indicia
dial
securing
finished
symbols
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US121503A
Other languages
English (en)
Inventor
Vogt Andre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3206841A publication Critical patent/US3206841A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49579—Watch or clock making
    • Y10T29/49583—Watch or clock making having indicia, face, or dial
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4981—Utilizing transitory attached element or associated separate material
    • Y10T29/49812—Temporary protective coating, impregnation, or cast layer

Definitions

  • dial plates of an electrolytic material the grade of which is however lower than that of stamped plates. Furthermore, it is not possible to provide signs or symbols made of solid gold without this leading to the production of dials also made of gold, or else, without resorting to an amount of gold which is much larger than that actually required for the forma tion of gold symbols alone.
  • the dial plate and the time symbols or indicia are made independently and a fraction at least of said symbols is coated with a protecting layer, so as to secure the symbols over the dial, said projecting layer being removed after this securing of the symbols or indicia to the dial.
  • FIGS. 1 to 9 of said drawing illustrate diagrammatically the main successive stages of said method.
  • I begin by producing a mold of plastic material (FIG. 1), of which the upper surface is provided with impressions for the formation of the symbols which it is desired to lay on a dial.
  • the mold or matrix carries a conductive member 2 embedded inside it and forming the bottom of said impressions, said conductive member being constituted, for instance, by an old dial.
  • the impressions are obtained by means of a further member 3 inserted, for instance, inside the apparatus into which the plastic material forming the mold is to be injected.
  • the surface of the mold (FIG. 2) is first coated with a thin layer of conductive material 4, say a copper layer, obtained through metallization or deposition in a vacuum and which has for its result an electric interconnection between the impressions and the conductive member 2.
  • a thin layer of conductive material say a copper layer
  • this layer is removed from the upper surface of the mold so as to allow only that section of the layer which lines the impressions to remain in position.
  • the mold is then dipped into an electrolytic bath, so as to form the symbols by a filling of the impressions, for instance by means of gold (FIG. 3).
  • the latter is deposited only inside the recesses, since only these are then conductive.
  • the upper surface of the symbols is finished off by a surfacing by means of a diamond or by polishing (FIG. 4), after which the finished symbols are protected by means of a copper layer 6, for instance, which is obtained electrolytically (FIG. 5).
  • Said protecting layer has a thickness of, say A of a mm., which ensures a proper protection of said symbols.
  • Known means for instance a welding through a resistance, or a welding by means of supersonic waves, soldering, gluing or the like, are then resorted to for securing over the protecting layer 6 a support 7 which may be constituted, for instance, by a metal ring or plate.
  • the mold 1 is finally removed by melting or by chemical reagents which dissolve it, for instance, and thenafter, the conductive member 2 is removed by attacking, for instance, the metalized layer connecting it with the gold or the like symbols. I obtain thus the complete hour scale secured to the support 7, as illustrated in FIG. 7.
  • the upper surface of the dial plate may, of course, be entirely finished, that is, it may have been previously subjected to the usual finishing operations and, in particular, to conventional electrolytic treatment.
  • My improved method is particularly economical since it allows obtaining dials carrying projecting symbols which are made, for instance, of gold, while resorting only to the amount of gold which is strictly required for their execution.
  • the dial plate may be obtained through any conventional means, for instance through stamping.
  • the symbols, as also the dial plate can be finished independently of one another and the operations on the dial plate cannot damage the symbols and reversely.
  • the filling of the impressions for the formation of the symbols may be executed methods other than through an electrodeposition method, for instance, through injection molding or die casting.
  • the symbols may also be made separately through any other known means, for instance through stamping or punching.
  • the protection may also be obtained through means other than an electrolytic deposit of metal, but through a varnish, or merely through a mechanically fitted element for example caps having a soft inner surface laid over each symbol.
  • the support may be secured to the symbols after removal of the mold and before removal of the conductive member.
  • the securing of the elements may be obtained on the dial and on the support through any known means.
  • a method for manufacturing a clockwork dial having time indicia and the like thereon in relief comprising, providing a finished dial plate having a major face to which indicia are to be secured in spaced positions without further finishing operations to be performed at least on said major face of said dial plate, providing finished indicia separately from said dial and having face surfaces viewable in the completed dial and in a finished condition without further need of finishing operations, applying on said face surfaces of said indicia in intimate contact therewith a protective layer of material capable of at least mechanically protecting said face surfaces of said indicia during securing of said indicia on said major face surface, permanently securing the indicia on said dial in spaced relative positions, after securing said indicia removing said layer of material to expose said finished face surfaces, and prior to securing said indicia on said dial plate, joining the protective layer on said indicia with said indicia disposed in discrete spaced positions corresponding to spaced relative positions said indicia are to be disposed in secured
  • a method for manufacturing a clockwork dial having time indicia and the like thereon in relief comprising, providing a finished dial plate having a major face to which indicia are to be secured in spaced positions Without further finishing operations to be performed at least on said major face of said dial plate, providing finished indicia separately from said dial and having face surfaces viewable in the completed dial and in a finished condition without further need of finishing operations, confining said indicia in discrete spaced positions in a matrix prior to securing them on said dial plate Without confining said face surfaces thereby protecting said indicia, applying a protective layer on the face surfaces of said indicia in intimate contact therewith and while confined in said matrix to at least mechanically protect said faces of said indicia during securing of said indicia on said major face surface, joining the protective layer of all of said indicia for holding said indicia in spaced relative positions upon removal of said matrix, removing said matrix, positioning all of said joined indicia on said major face for securing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
US121503A 1960-07-04 1961-07-03 Method for producing a clockwork dial provided with projecting symbols Expired - Lifetime US3206841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH761560A CH376058A (fr) 1960-07-04 1960-07-04 Procédé de fabrication d'un cadran d'horlogerie muni de signes en relief

Publications (1)

Publication Number Publication Date
US3206841A true US3206841A (en) 1965-09-21

Family

ID=4327895

Family Applications (1)

Application Number Title Priority Date Filing Date
US121503A Expired - Lifetime US3206841A (en) 1960-07-04 1961-07-03 Method for producing a clockwork dial provided with projecting symbols

Country Status (2)

Country Link
US (1) US3206841A (fr)
CH (1) CH376058A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287798A (en) * 1964-10-12 1966-11-29 Beyeler & Co S A Method of making hour symbols for timepiece dials
US3924791A (en) * 1972-02-01 1975-12-09 Noriaki Shimizu Method of making a dial for a wrist watch
US5513153A (en) * 1995-02-13 1996-04-30 Timex Corporation Method of manufacturing three-dimensional indicia on electroluminescent timepiece dials and timepiece dials produced thereby

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3214507A1 (fr) * 2016-03-04 2017-09-06 The Swatch Group Research and Development Ltd. Methode d'alignement des appliques

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1060361A (en) * 1913-01-06 1913-04-29 Theodore W Foster & Bro Company Process of manufacturing plated goods.
US1325325A (en) * 1919-12-16 Commutator manufacture
US1392007A (en) * 1918-08-08 1921-09-27 Joseph A Freund Process of making watch-plates
US1571756A (en) * 1922-10-05 1926-02-02 Colomb Henri Manufacturing process of blanks for watch movements provided with jewel-insetting or plug holes
US1995036A (en) * 1932-09-13 1935-03-19 Premier Metal Etching Company Index dial plate
US2011517A (en) * 1934-09-04 1935-08-13 Arthur J Geoffrion Clock dial
US2608529A (en) * 1945-12-29 1952-08-26 Sperry Corp Method of uniting parts by electrodeposition
US2636489A (en) * 1951-08-21 1953-04-28 Stefano Frank Joseph Di Chemical water heater
IT566210B (fr) * 1956-01-30 1957-08-27 Walter Bloesch
US2983992A (en) * 1957-02-07 1961-05-16 David J Bloomberg Inc Method for fabricating turbine assembly
US3000081A (en) * 1957-07-16 1961-09-19 Ford Motor Co Wheel manufacture

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325325A (en) * 1919-12-16 Commutator manufacture
US1060361A (en) * 1913-01-06 1913-04-29 Theodore W Foster & Bro Company Process of manufacturing plated goods.
US1392007A (en) * 1918-08-08 1921-09-27 Joseph A Freund Process of making watch-plates
US1571756A (en) * 1922-10-05 1926-02-02 Colomb Henri Manufacturing process of blanks for watch movements provided with jewel-insetting or plug holes
US1995036A (en) * 1932-09-13 1935-03-19 Premier Metal Etching Company Index dial plate
US2011517A (en) * 1934-09-04 1935-08-13 Arthur J Geoffrion Clock dial
US2608529A (en) * 1945-12-29 1952-08-26 Sperry Corp Method of uniting parts by electrodeposition
US2636489A (en) * 1951-08-21 1953-04-28 Stefano Frank Joseph Di Chemical water heater
IT566210B (fr) * 1956-01-30 1957-08-27 Walter Bloesch
US2983992A (en) * 1957-02-07 1961-05-16 David J Bloomberg Inc Method for fabricating turbine assembly
US3000081A (en) * 1957-07-16 1961-09-19 Ford Motor Co Wheel manufacture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287798A (en) * 1964-10-12 1966-11-29 Beyeler & Co S A Method of making hour symbols for timepiece dials
US3924791A (en) * 1972-02-01 1975-12-09 Noriaki Shimizu Method of making a dial for a wrist watch
US5513153A (en) * 1995-02-13 1996-04-30 Timex Corporation Method of manufacturing three-dimensional indicia on electroluminescent timepiece dials and timepiece dials produced thereby

Also Published As

Publication number Publication date
CH376058A (fr) 1963-11-15

Similar Documents

Publication Publication Date Title
US1963834A (en) Method of ornamentation
US3206841A (en) Method for producing a clockwork dial provided with projecting symbols
KR20230021046A (ko) 기계 부품을 장식하기 위한 방법
US3724202A (en) Ring member for a watch dial
US3054175A (en) Process for the manufacture of dials having recessed markings or markings formed in relief
US3251124A (en) Method for producing a clockwork dial provided with projecting symbols
US10301732B2 (en) Method for fabrication of a timepiece provided with a multi-level exterior element
US3228861A (en) Electroplating method for producing watch dial indicia
CN113687588A (zh) 制造钟表的钟表部件的方法
JPS6052391B2 (ja) 時計用装飾板の製造方法
US1614263A (en) Method for making ornamental panels, signs, and the like
CN119317880A (zh) 用于装饰钟表构件的方法
GB1389941A (en) Processing semiconductor layers
US849292A (en) Antimagnetic device for watches.
JPH0435419Y2 (fr)
JPS57171682A (en) Manufacture of display plate for timepiece
JPS607234B2 (ja) 時計用文字板の製造方法
US536259A (en) Process of producing metal art objects set with jewels
FR2202955A1 (en) Electroforming of tools - using thin metal coating and impurities in plating bath to aid separation from pattern
US3203080A (en) Method for welding symbols in relief over a dial
JPH0153357B2 (fr)
JPH04130792A (ja) 回路基板の製造方法
US4130A (en) Improvement in preparing matrices for type by the electrotyping process
HK40116294A (zh) 用於装饰钟表构件的方法
CH374592A (fr) Procédé de fabrication d'un cadran d'horlogerie muni de signes en relief