US3481140A - Escapement lever for a timepiece - Google Patents

Escapement lever for a timepiece Download PDF

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Publication number
US3481140A
US3481140A US624413A US3481140DA US3481140A US 3481140 A US3481140 A US 3481140A US 624413 A US624413 A US 624413A US 3481140D A US3481140D A US 3481140DA US 3481140 A US3481140 A US 3481140A
Authority
US
United States
Prior art keywords
lever
pallet
timepiece
escapement
stone
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
US624413A
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English (en)
Inventor
Paul Tuetey
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.)
Les Fabriques dAssortiments Reunies SA FAR
Original Assignee
Les Fabriques dAssortiments Reunies SA FAR
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 Les Fabriques dAssortiments Reunies SA FAR filed Critical Les Fabriques dAssortiments Reunies SA FAR
Application granted granted Critical
Publication of US3481140A publication Critical patent/US3481140A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • 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
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/15—Intermittent grip type mechanical movement
    • Y10T74/1502—Escapement

Definitions

  • An escapement lever for a timepiece including pallets fitted on to the body of the lever comprising locating surfaces formed on a face of the lever adapted to hold the pallets in their exact position and means for permanently affixing the pallets on the lever.
  • thermosetting glue such as Araldit (trade name)
  • Araldit trade name
  • the present invention aims at overcoming these drawbacks. It relates to a method of manufacturing an escapement lever for a timepiece, said lever including pallets fitted on to the body of the lever, this method being broadly characterized by forming On a face of the lever posi-,
  • the invention provides positioning means integral with or rigidly connected to the lever, by means of which it is possible to hold the pallets in their definitive place during the time necessary for the setting of the glue, in conjunction with a temporary pressure means independent of the lever and necessitating no precise construction.
  • the positioning means are not sufficient per se to hold the pallets in their position, as this is the case in the well-known conventional mounting method.
  • the pallet is glued on the plane of the lever by one of its nonfunctional faces (perpendicular to the lockingface), which has the advantage that in certain cases it is possible to glue the whole surface of the pallet on the lever and thus increase the strength of the assembly.
  • This 3,481,140 Patented Dec. 2, 1969 strength may be further increased by avoiding to polish the face of the pallet that is to be glued, which increases the adherence of the glue.
  • the same elements as described above will facilitate the mutual positioning of the parts during the welding operation.
  • FIG. 1 is a plan view of a lever equipped with its two pallet-stones.
  • FIG. 2 is a cross-sectional view through one of the pallet-stones fixed to the lever.
  • FIGS. 3 and 4 are cross-sectional views similar to FIG. 2, showing modified embodiments.
  • the lever illustrated in FIGS. 1 and 2 is denoted by the reference numeral 1 and its arbor by the reference numeral 2.
  • the pallet-stones are denoted by the reference numerals 3.
  • the partial blanking or punching method which consists in causing a punch to penetrate into a portion of the thickness of the lever so as to leave the chip in its place.
  • at least three supports or studs 4, 5 and 6, for instance of a rectangular shape are created.
  • the surface of the lever having been preliminarily coated with glue, it is sufficient to place the pallet-stone in its right position by pressing it against the surface of the lever and against the studs 4 to 6, so that the correct positioning of the pallet-stone is ensured.
  • the studs 4 to 6 might also be obtained by swaging.
  • the pallet receiving place or berth is formed by making a recess 7 in the lever 1 by means of a punch or by swaging.
  • a recess 8 may be obtained on the lever 1 by removal of material by a chemical or electrochemical attack or by electro-erosion, according to the known techniques used for instance in the photo-engraving processes.
  • the positioning means above described make possible to define exactly the position of the pallet and it is sufficient, during the period of setting of the glue, or during the welding operation, to exert a pressure on the upper face of the pallet by simple means and without precision to insure the efiiciency and the precision of the assembly.
  • an escapement lever having a fiat surface portion on 3 4 one side thereof perpendicular to the axis upon References Cited which the lever iS IIlOlllltCd, the flat portion being UNITED STATES PATENTS bounded on at least three sides thereof by locating 114 372 5/1871 Wadsworth 58 116 Surfaces 856,091 6/1907 Ohlson 58116 a pallet havlng a body provided with a surface seated 5 3 248 783 5/1966 Tuetey 29 178 upon said flat surface portion and of a shape to non- 1:327:226 1/1920 DeLong frictionall seat within close roximit to said locatting surfa es with said pallef outstanid ing from said FOREIGN PATENTS one side of the escapement lever, 241,452 3/1946 Switzerland.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adornments (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
US624413A 1966-04-14 1967-03-20 Escapement lever for a timepiece Expired - Lifetime US3481140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH541666A CH461375A (fr) 1966-04-14 1966-04-14 Procédé de fabrication d'une ancre d'échappement pour mouvement d'horlogerie

Publications (1)

Publication Number Publication Date
US3481140A true US3481140A (en) 1969-12-02

Family

ID=4293207

Family Applications (1)

Application Number Title Priority Date Filing Date
US624413A Expired - Lifetime US3481140A (en) 1966-04-14 1967-03-20 Escapement lever for a timepiece

Country Status (3)

Country Link
US (1) US3481140A (enrdf_load_stackoverflow)
CH (2) CH541666A4 (enrdf_load_stackoverflow)
DE (1) DE1673638C3 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694885A (en) * 1969-07-11 1972-10-03 Far Fab Assortiments Reunies Method of manufacturing an escapement lever for a timepiece
US3765072A (en) * 1971-03-18 1973-10-16 Philamon Labor Inc Method for making tuning fork resonator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1965277B1 (fr) * 2007-03-01 2009-11-25 Audemars Piguet (Renaud et Papi) SA Ancre pour mécanisme d'échappement horloger de type à ancre et roue

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US114372A (en) * 1871-05-02 Improvement in the pallets of watches
US856091A (en) * 1905-04-24 1907-06-04 Waltham Watch Co Escapement.
US1327226A (en) * 1916-07-13 1920-01-06 Long Charles E De Watch-escapement
CH241452A (fr) * 1943-08-20 1946-03-15 Turban Jean Echappement à ancre.
FR1163692A (fr) * 1956-12-29 1958-09-30 Nouvel échappement ancre
CH342897A (fr) * 1956-11-08 1959-11-30 Huguenin Pierre Louis Dispositif d'échappement à ancre pour mouvement d'horlogerie
CH347140A (fr) * 1959-06-09 1960-06-15 Roamer Watch Co Sa Procédé de fabrication d'une ancre d'échappement d'horlogerie et ancre obtenue par la mise en oeuvre de ce procédé
FR1266560A (fr) * 1960-05-31 1961-07-17 Lip Sa Procédé de fabrication d'ancre d'échappement d'horlogerie et ancres obtenus par ce procédé
US3248783A (en) * 1961-11-09 1966-05-03 Far Fab Assortiments Reunies Method of manufacture of a pin pallet fork of a timepiece

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US114372A (en) * 1871-05-02 Improvement in the pallets of watches
US856091A (en) * 1905-04-24 1907-06-04 Waltham Watch Co Escapement.
US1327226A (en) * 1916-07-13 1920-01-06 Long Charles E De Watch-escapement
CH241452A (fr) * 1943-08-20 1946-03-15 Turban Jean Echappement à ancre.
CH342897A (fr) * 1956-11-08 1959-11-30 Huguenin Pierre Louis Dispositif d'échappement à ancre pour mouvement d'horlogerie
FR1163692A (fr) * 1956-12-29 1958-09-30 Nouvel échappement ancre
CH347140A (fr) * 1959-06-09 1960-06-15 Roamer Watch Co Sa Procédé de fabrication d'une ancre d'échappement d'horlogerie et ancre obtenue par la mise en oeuvre de ce procédé
FR1266560A (fr) * 1960-05-31 1961-07-17 Lip Sa Procédé de fabrication d'ancre d'échappement d'horlogerie et ancres obtenus par ce procédé
US3248783A (en) * 1961-11-09 1966-05-03 Far Fab Assortiments Reunies Method of manufacture of a pin pallet fork of a timepiece

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694885A (en) * 1969-07-11 1972-10-03 Far Fab Assortiments Reunies Method of manufacturing an escapement lever for a timepiece
US3765072A (en) * 1971-03-18 1973-10-16 Philamon Labor Inc Method for making tuning fork resonator

Also Published As

Publication number Publication date
DE1673638C3 (de) 1974-04-04
CH461375A (fr) 1968-02-29
DE1673638A1 (de) 1972-01-13
DE1673638B2 (de) 1973-09-13
CH541666A4 (enrdf_load_stackoverflow) 1968-02-29

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