GB2375619A - Differential tourbillon escapement - Google Patents

Differential tourbillon escapement Download PDF

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Publication number
GB2375619A
GB2375619A GB0111690A GB0111690A GB2375619A GB 2375619 A GB2375619 A GB 2375619A GB 0111690 A GB0111690 A GB 0111690A GB 0111690 A GB0111690 A GB 0111690A GB 2375619 A GB2375619 A GB 2375619A
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United Kingdom
Prior art keywords
wheel
escape
differential
wheels
driven
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Granted
Application number
GB0111690A
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GB0111690D0 (en
GB2375619B (en
Inventor
Souza Paul Gerard D
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Individual
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Individual
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Priority to GB0111690A priority Critical patent/GB2375619B/en
Publication of GB0111690D0 publication Critical patent/GB0111690D0/en
Publication of GB2375619A publication Critical patent/GB2375619A/en
Application granted granted Critical
Publication of GB2375619B publication Critical patent/GB2375619B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

A Differential Tourbillon Escapement for clocks and watches comprising a revolving carriage 6 with a twin escape wheel 13 escapement providing a double impulse. Each escape pinion 10,12 is coupled to separate co-axially mounted 4<SP>th</SP> wheels, one 13 rigidly fixed and the other 11 driven off a gear train. The whole carriage is pivoted on the same axis as the 4<SP>th</SP> wheels. The rotating 4<SP>th</SP> wheel 11 drives one escape wheel 1 and when that escape wheel is locked the drive to the other escape wheel 3 is via the whole carriage 6 that rotates around the fixed 4<SP>th</SP> wheel 13. One escape wheel gets a direct drive and the other drive by other rotating carriage. Only one of the two escape wheels is effective at any time. The carriage is not driven directly via a 4<SP>th</SP> wheel pinion as in other tourbillon or revolving carriage mechanisms.

Description

<Desc/Clms Page number 1>
Differential Tourbillon Escapement for clocks and watches.
This invention relates to a Differential Tourbillon Escapement mechanism or revolving carnage escapement, particularly designed for a double impulse escapement and which compensates suitably for the effects of gravity on the balance wheel assembly.
Hitherto known escapements found in mechanical clocks and watches are subject to a varying error due to the effects of gravity on the escapement which is fixed and rigid in design. No suitable means is available to neutralize the effects of gravity, especially when the balance is in the vertical position. A double impulse escapement is much desired for more stable timekeeping, and this is not always possible due to the power requirements of the gear train etc.
According to the present invention there is provided a Differential
Tourbillon Escapement Mechanism comprising of two escape wheels, a OA balance anal escape wheel locking mechanism mounted in a revolving A carriage, coupled by the respective escape wheel pinions to two coaxially mounted 4th wheels, one being fixed rigidly and the other driven by the movement train. The said escape wheels are mounted such that each escape wheel pinion makes contact with only one 4i wheel resulting in one escape wheel being driven by the moving 4h wheel and the other escape wheel being driven by the revolving carriage around the fixed 4th wheel.
The invention will now be described with the help of the following diagrams wherein: Figure 1. Is a plan view of the twin escape wheels I & 3 along with the impulse roller 3. These three components along with two locking levers (not shown) are what form the tourbillon carriage. The balance wheel and balance spring are also not shown.
<Desc/Clms Page number 2>
Figure 2. is an underside view of the two escape wheel pinions 10 & 12 that are mounted on 1 & 3 respectfully. The driving 4 wheels 11 & 13 are shown making appropriate contact with these pinions. 4"'wheel driving pinion 14 is fixed rigidly to 11. Whereas 13 is fixed rigidly to stud 19. The 4th wheel pinion assembly comprising 11 & 14 moves freely around 19.
Wheels 13 and 11 are separated by washer 13A. Pinion 14 is driven by the movement train.
Figure 3. is an elevation section view of the complete tourbillon carriage.
Only the 4th wheel assembly is shown partially exploded. The Balance wheel 5 is mounted between jewel bearings 16A and 17A.
Figure 4. is an elevation section view of the complete tourbillon carriage including the supporting bridge and base plate 20. The various components are shown at their various levels of co-operation.
The heart of the tourbillon mechanism is in the differential drive provided by the fixed and moving 4h wheels 13 & 11 respectively. The fixed and moving 4th wheels necessitate a moving carriage 6. The carriage has two pivots 16 & 17, and is mounted between an upper bridge and lower bearing assembly 15, that is on the top of the stud 19.
The working of Differential Tourbillon is described as follows: If the carriage is stationary, wheel 11 drives pinion 10 activating escape wheel I as in any other mechanical escapement. This takes place when during one vibration of the balance, escape wheel 3 is locked by pinion 12 against fixed wheel 13. Thus the whole carriage is locked when escape wheel 3 is locked. The balance is given an impulse by escape wheel 1.
During the second half of the vibration of the balance (the opposite direction), escape wheel 3 is unlocked and escape wheel I is locked. This causes the entire carriage assembly 6 to be driven by 11 as if fixed to it via pinion 10. The escape wheel 3 is driven by the entire carriage revolving around fixed wheel 13. The tourbillon carriage is driven by a locked escape wheel 1 and not by a separate pinion fixed to the carriage as in other tourbillons. The difference in the size of the wheels 11 & 13 and mating pinions 10 & 12 is to compensate for the extra power needed when the entire carriage needs to be rotated to drive escape wheel 3. The lack of a carriage pinion to drive the carriage results in a significant decrease in carriage weight and hence power requirement.
<Desc/Clms Page number 3>
The Differential Tourbillon Escapement Mechanism is operated as follows: The clock or watch is wound to provide the motive power and the balance wheel is set in motion by any slight movement. The escapement is essentially self starting and needs no external control.

Claims (5)

  1. I Claim: Claim 1.
    A Differential Tourbillon Escapement Mechanism comprising of two escape wheels, a balance and escape wheel locking mechanism mounted in a revolving carriage, coupled by the respective escape wheel pinions to two co-axially mounted 4 wheels, one being fixed rigidly and the other
    driven by the movement train, the said escape wheels mounted such that each escape wheel pinion makes contact with only one 4th wheel resulting in one escape wheel being driven by the moving 4* wheel and the other escape wheel being driven by the revolving carriage around the fixed 4th wheel.
  2. Claim 2.
    A Differential Tourbillon Escapement Mechanism as claimed in Claim 1 wherein the revolving carriage is driven via the escape wheels.
  3. Claim 3.
    A Differential Tourbillon Escapement Mechanism as claimed in Claim 1. and Claim 2. wherein the 4th wheel assembly consists of one fixed wheel and one moving wheel co-axially mounted, the said moving wheel deriving its drive from the gear train of the movement.
  4. 4. A Differential Tourbillon Escapement Mechanism substantially as described herein with reference to Figures 1,2, 3 & 4 of the accompanying diagrams.
    Claim 4.
    A Differential Tourbillon Escapement Mechanism as claimed in Claim 1 , Claim 2 and Claim 3 wherein one escape wheel is driven by the moving 4th wheel directly and the other by revolving around a fixed 4th wheel.
    Claim
  5. 5.
    A Differential Tourbillon Escapement Mechanism as substantially described herein with reference to Figures 1,2, 3 & 4 of the accompanying diagrams.
    <Desc/Clms Page number 5>
    Amendments to the claims have been filed as follows Claims
    1. A Differential Tourbillon Escapement Mechanism comprising of two escape wheels, a balance and escape wheel locking mechanism mounted in a revolving carriage, coupled by the respective escape wheel pinions to two co-axially mounted 4th wheels of a gear train, one being fixed rigidly and the other driven by the movement train and wherein the said escape wheels are mounted such that each escape wheel pinion makes contact with only one 4th wheel resulting in one escape wheel being driven by the moving 4th wheel and the other escape wheel being driven by the revolving carriage moving around the fixed 4th wheel.
    2. A Differential Tourbillon Escapement Mechanism as claimed in Claim I wherein the revolving carriage is driven or held via the escape wheels.
    3. A Differential Tourbillon Escapement Mechanism as claimed in Claims 1 or 2 wherein the 4th wheel assembly consists of one fixed wheel and one moving wheel co-axially mounted, the said moving wheel deriving its drive from the gear train of the movement.
GB0111690A 2001-05-14 2001-05-14 Differential tourbillon escapement for clocks & watches Expired - Fee Related GB2375619B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0111690A GB2375619B (en) 2001-05-14 2001-05-14 Differential tourbillon escapement for clocks & watches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0111690A GB2375619B (en) 2001-05-14 2001-05-14 Differential tourbillon escapement for clocks & watches

Publications (3)

Publication Number Publication Date
GB0111690D0 GB0111690D0 (en) 2001-07-04
GB2375619A true GB2375619A (en) 2002-11-20
GB2375619B GB2375619B (en) 2002-12-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB0111690A Expired - Fee Related GB2375619B (en) 2001-05-14 2001-05-14 Differential tourbillon escapement for clocks & watches

Country Status (1)

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GB (1) GB2375619B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005043257A1 (en) * 2003-10-31 2005-05-12 Complitime Sa Watchmaking piece comprising two turbillons
CH695196A5 (en) * 2004-12-03 2006-01-13 Christophe Claret Sa Timepiece, has wheels geared with inner teeth of upper wheel and pinions geared with sun gear connected with lower wheel, where upper and lower wheels are engaged respectively with axles of two tourbillons
EP1640821A1 (en) * 2004-09-22 2006-03-29 Antoine Preziuso Geneve SA Watch movement with a plurality of balances
WO2006032581A2 (en) * 2004-08-11 2006-03-30 Karl Bernhard Lederer Tourbillon mechanical clockwork part
SG126103A1 (en) * 2005-03-30 2006-10-30 Montres Breguet Sa Watch including at least two regulating systems
JP2008534919A (en) * 2005-03-23 2008-08-28 マルブリア リミテッド Watch movement
US7527423B2 (en) 2004-04-15 2009-05-05 Montres Breguet Sa Watch comprising two tourbillons
EP3029530A1 (en) * 2014-12-03 2016-06-08 Nivarox-FAR S.A. Tourbillon mechanism

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388258A (en) * 1931-05-13 1933-02-23 Marcel Vuilleumier Improvements relating to horological movements

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388258A (en) * 1931-05-13 1933-02-23 Marcel Vuilleumier Improvements relating to horological movements

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005043257A1 (en) * 2003-10-31 2005-05-12 Complitime Sa Watchmaking piece comprising two turbillons
US7527423B2 (en) 2004-04-15 2009-05-05 Montres Breguet Sa Watch comprising two tourbillons
WO2006032581A2 (en) * 2004-08-11 2006-03-30 Karl Bernhard Lederer Tourbillon mechanical clockwork part
WO2006032581A3 (en) * 2004-08-11 2006-10-19 Karl Bernhard Lederer Tourbillon mechanical clockwork part
EP1918790A2 (en) 2004-09-22 2008-05-07 Antoine Preziuso Geneve SA Tourbillon for watch movement and movement comprising same
EP1918790A3 (en) * 2004-09-22 2009-01-28 Antoine Preziuso Geneve SA Tourbillon for watch movement and movement comprising the same
EP1640821A1 (en) * 2004-09-22 2006-03-29 Antoine Preziuso Geneve SA Watch movement with a plurality of balances
WO2006032974A3 (en) * 2004-09-22 2006-08-31 Antoine Preziuso Geneve Sa Watch movement provided with several balance wheels
WO2006032974A2 (en) * 2004-09-22 2006-03-30 Antoine Preziuso Geneve Sa Watch movement provided with several balance wheels
CH695196A5 (en) * 2004-12-03 2006-01-13 Christophe Claret Sa Timepiece, has wheels geared with inner teeth of upper wheel and pinions geared with sun gear connected with lower wheel, where upper and lower wheels are engaged respectively with axles of two tourbillons
US7815363B2 (en) * 2005-03-23 2010-10-19 Bnb Concept Sa Movement for a timepiece with plural escapements
JP2008534919A (en) * 2005-03-23 2008-08-28 マルブリア リミテッド Watch movement
JP4846781B2 (en) * 2005-03-23 2011-12-28 ベエヌベ コンセプ エセア Watch movement
US7350966B2 (en) 2005-03-30 2008-04-01 Montres Breguet Sa Watch including at least two regulating systems
CN1841242B (en) * 2005-03-30 2010-05-12 蒙特雷布勒盖股份有限公司 Watch including at least two regulating systems
SG126103A1 (en) * 2005-03-30 2006-10-30 Montres Breguet Sa Watch including at least two regulating systems
EP3029530A1 (en) * 2014-12-03 2016-06-08 Nivarox-FAR S.A. Tourbillon mechanism
US9599961B2 (en) 2014-12-03 2017-03-21 Nivarox-Far S.A. Tourbillon mechanism

Also Published As

Publication number Publication date
GB0111690D0 (en) 2001-07-04
GB2375619B (en) 2002-12-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050514