GB1436578A - Clockwork lever escapements - Google Patents

Clockwork lever escapements

Info

Publication number
GB1436578A
GB1436578A GB2677973A GB2677973A GB1436578A GB 1436578 A GB1436578 A GB 1436578A GB 2677973 A GB2677973 A GB 2677973A GB 2677973 A GB2677973 A GB 2677973A GB 1436578 A GB1436578 A GB 1436578A
Authority
GB
United Kingdom
Prior art keywords
unit
june
flange
integral
moulded
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
Application number
GB2677973A
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.)
Bunker Ramo Corp
Original Assignee
Bunker Ramo Corp
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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Publication of GB1436578A publication Critical patent/GB1436578A/en
Expired legal-status Critical Current

Links

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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Gears, Cams (AREA)

Abstract

1436578 Timepiece escapements BUNKER RAMO CORP 5 June 1973 [5 June 1972] 26779/73 Heading G3T A unit 21 for mounting on a balance shaft 14 comprises a guard roller 22 on one side of a flange 25 from the other side of which projects an impulse pin 28. Bore 24 is formed as a friction fit on the balance shaft so that the unit may be turned to set the escapement in beat, allowing the inner end of hairspring 34 to be welded or cemented to a boss 35 integral with the shaft. The unit is moulded from plastics or metal powder and co-operates with a similarly moulded pallet lever (19) Figs. 1 and 2 (not shown) having a finger (33) and fork (32) to engage notch 23 and the pin 28, and integral pallet pins (31). The flange 25 gives a designed unbalance as described in Specification 1380767.
GB2677973A 1972-06-05 1973-06-05 Clockwork lever escapements Expired GB1436578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25986372A 1972-06-05 1972-06-05

Publications (1)

Publication Number Publication Date
GB1436578A true GB1436578A (en) 1976-05-19

Family

ID=22986741

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2677973A Expired GB1436578A (en) 1972-06-05 1973-06-05 Clockwork lever escapements

Country Status (6)

Country Link
US (1) US3791251A (en)
JP (1) JPS537819B2 (en)
CA (1) CA977164A (en)
DE (1) DE2328319A1 (en)
FR (1) FR2188209B1 (en)
GB (1) GB1436578A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108196A1 (en) * 1981-03-04 1982-09-16 Parrenin S.A., 25130 Villers-le-Lac Device which forms the anchor escapement, in particular of a clock, and a method for producing the balance wheel of this device
CH705276B1 (en) * 2007-12-28 2013-01-31 Chopard Technologies Sa Body workout and transmission to a lever escapement, and exhaust tray being equipped and timepiece comprising them.
EP2605081A1 (en) * 2011-12-16 2013-06-19 ETA SA Manufacture Horlogère Suisse Overmoulded timepiece barrel
EP2653938A1 (en) * 2012-04-19 2013-10-23 ETA SA Manufacture Horlogère Suisse Horological balance
EP2924517B1 (en) * 2014-03-24 2016-11-09 Nivarox-FAR S.A. One-piece composite pin - safety roller
JP6748318B1 (en) * 2020-01-29 2020-08-26 セイコーウオッチ株式会社 Escapement governor, watch movement and watch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1359005A (en) * 1920-07-26 1920-11-16 Verner Clarence Triple roller for watches
DE1067373B (en) * 1955-05-31 1959-10-15 Gebrüder Junghans Ag TABLE CLOCK
FR1316624A (en) * 1961-12-20 1963-02-01 Anciens Etablissements Duverdr Improvements to straddle systems for watch movements
CH450297A (en) * 1963-08-09 1965-11-15 Far Fab Assortiments Reunies Double plate for anchor escapement of clockwork movement
CH430591A (en) * 1965-01-04 1966-10-31 Tissot Horlogerie Balance for clockwork movement
US3335562A (en) * 1965-03-03 1967-08-15 Tissot Horlogerie Anchor escapement for timepieces
CH439121A (en) * 1965-04-21 1967-12-15 Virola Sa Device for fixing a watch spring to the balance axis
DE1523801C3 (en) * 1966-11-03 1974-03-14 Greiner Electronic Gmbh, 7530 Pforzheim Process for the automatable attachment of the inner hook of a spiral spring to the balance and device for carrying out the process
CH1413367A4 (en) * 1967-10-10 1969-09-15
US3678683A (en) * 1971-02-26 1972-07-25 Gen Time Corp One-piece roller-impulse member for timepiece escapement

Also Published As

Publication number Publication date
JPS4963472A (en) 1974-06-19
FR2188209A1 (en) 1974-01-18
CA977164A (en) 1975-11-04
DE2328319A1 (en) 1973-12-20
US3791251A (en) 1974-02-12
FR2188209B1 (en) 1977-05-06
JPS537819B2 (en) 1978-03-22

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee