EP0504625A1 - Compensator for a mechanical pendulum clock - Google Patents
Compensator for a mechanical pendulum clock Download PDFInfo
- Publication number
- EP0504625A1 EP0504625A1 EP19920103129 EP92103129A EP0504625A1 EP 0504625 A1 EP0504625 A1 EP 0504625A1 EP 19920103129 EP19920103129 EP 19920103129 EP 92103129 A EP92103129 A EP 92103129A EP 0504625 A1 EP0504625 A1 EP 0504625A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pendulum
- clock
- compensator
- compensator according
- center
- 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.)
- Granted
Links
- 230000005484 gravity Effects 0.000 claims abstract description 17
- 239000010453 quartz Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000010355 oscillation Effects 0.000 description 7
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C11/00—Synchronisation of independently-driven clocks
- G04C11/08—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction
- G04C11/085—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor
- G04C11/087—Synchronisation of independently-driven clocks using an electro-magnet or-motor for oscillation correction using an electro-motor acting on the pendulum
-
- 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
- G04B18/00—Mechanisms for setting frequency
- G04B18/003—Mechanisms for setting frequency by displacement of devices carried by the pendulum or by adjusting the pendulum length
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C11/00—Synchronisation of independently-driven clocks
- G04C11/007—Synchronisation of independently-driven clocks by positioning of the index or by regulating the length of the pendulum in dependance on the time difference with a standard
Definitions
- the invention relates to a compensator for a mechanical pendulum clock to compensate for disturbance variables influencing the running accuracy of the pendulum clock.
- the invention is based on the problem of designing a compensator for a mechanical pendulum clock in such a way that the pendulum clock achieves a precision comparable to that of quartz clocks and that subsequent improvement of the precision of existing clocks is possible with the least possible effort and without any visible change in the pendulum clock.
- the compensator has a motor-driven center of gravity adjustment device to be attached to the pendulum and an electronic control unit forming a comparator for controlling the center of gravity adjustment device, which is connected on the input side to an electronic clock generator and a pendulum frequency generator.
- the compensator according to the invention can be constructed from components which are generally used in electronics if the pendulum frequency transmitter is a resonance oscillator attached to the pendulum and the clock generator is a quartz reference oscillator.
- Mechanical pendulum clocks can achieve the accuracy of atomic clocks if, according to another development of the invention, the clock generator has a radio clock.
- the radio clock does not require a separate antenna if, according to an advantageous further development of the invention, the clock having the radio clock is arranged on the pendulum lens and the pendulum rod forms the antenna of the radio clock.
- the retrofitting of existing pendulum clocks by installing the compensator according to the invention can be carried out particularly easily and inexpensively if all of its components are designed to be arranged on the pendulum lens.
- Another advantageous embodiment of the invention is that all components of the compensator are arranged encapsulated within the pendulum lens by the pendulum lens. This makes it possible to replace the pendulum with a pendulum according to the invention in existing pendulum clocks in order to achieve a quartz-precise movement of the pendulum clock.
- the focus adjustment device can be designed very differently. You must have a weight whose distance from the pendulum axis is adjustable.
- the center of gravity adjustment device is particularly simple if it is a rotatably mounted disc that can be rotated by an electric motor and has a center of gravity that lies outside of its pivot point. Such a disc can carry a weight at one point, for example. However, it is also possible to have a sector with her recess so that their center of gravity changes by turning the disc.
- the disc could be adjusted analogously, so that a continuous change in the center of gravity and thus a continuous adjustment of the speed of the pendulum clock is achieved.
- the control of the electric motor of the disk is designed to move the disk from a middle position into an upper and a lower center of gravity position.
- Such an embodiment has the advantage that an adjusting movement is rarely required, so that the energy consumption for the adjustment is low and the compensator according to the invention can work with a small battery for a very long time.
- the clock generator must generate the oscillation frequency theoretically required. Since this is often not known, the electronics in the quartz reference oscillator could be designed such that the duration of the real pendulum oscillation is first automatically measured in an initialization process and used as a reference variable for a clock generator designed as a programmable divider. However, the automatically recorded value will usually not be accurate enough. The fine adjustment of the pendulum clock is then achieved simply by incrementally adjusting the number of divisions of the divider. Stopping the pendulum can be avoided here if, according to a development of the invention, the clock generator is designed as a programmable divider and a Hall switch which can be actuated by means of a magnet is provided for its setting.
- the drawing shows a pendulum 1, which is a pendulum composed of a pendulum rod 2 and a conventional pendulum lens 3.
- the lower end of the pendulum rod 2 is provided with a thread 4, so that the height of the pendulum lens 3 can be adjusted by hand using an adjusting screw 5 in order to regulate the speed of the pendulum clock.
- a compensator 6 designed according to the invention is arranged on the back of the pendulum lens 3.
- this has a center of gravity adjustment device 8, which has a disk 10 with a weight 11 that can be rotated about an axis of rotation 9.
- An electric motor 12 can rotate the disk 10 by means of a spindle 13, which is designed as a worm wheel for this purpose.
- an electronic controller 14 is used, which is designed as a comparator and compares the signals of an electronic clock generator 15 designed as a quartz reference oscillator and a pendulum frequency generator 16. If there is a difference between the reference oscillation and the pendulum oscillation, then the electric motor 12 is actuated so that the weight 11 moves up or down by rotating the disk 10 and the pendulum oscillation thereby increases or decreases.
- the pendulum frequency transmitter 16 has the task of generating an electrical pulse with every full oscillation of the pendulum. This can be done in a number of ways. For example, like a pocket watch, you can use a mechanical resonance system with a spiral spring and Provide vibration mass. If the natural vibration of this system is close to the pendulum frequency, there are sufficient vibration amplitudes to operate a contact. The pendulum frequency generator 16 thus delivers the "actual frequency”.
- the "target” is supplied by the clock 15.
- the frequency of this pulse sequence corresponds to the pendulum vibration calculated from the gear train of the pendulum clock.
- This oscillation of the clock generator 15 is quartz-stabilized. For example, it can be generated by a programmable divider.
- a Hall switch 17 to be actuated by a magnet is provided on the clock generator 15.
- the controller 14 is essentially an up / down counter. If the incoming pulse trains match, this counter is always at zero (the clock goes exactly). However, if the pulse sequences differ from one another in time, the error accumulates and the counter reading rises or falls.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Control Of Electric Motors In General (AREA)
- Electrophonic Musical Instruments (AREA)
- Lock And Its Accessories (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
Description
Die Erfindung betrifft einen Kompensator für eine mechanische Pendeluhr zum Ausgleich von die Laufgenauigkeit der Pendeluhr beeinflussenden Störgrößen.The invention relates to a compensator for a mechanical pendulum clock to compensate for disturbance variables influencing the running accuracy of the pendulum clock.
Mechanische Pendeluhren werden seit etwa 1650 gebaut. Anfang dieses Jahrhunderts erreichten sie ihren technischen Höhepunkt. Genauigkeiten von besser als 1/100 sec pro Tag wurden erzielt. Hierzu bedurfte es aufwendiger Kompensatoren, welche insbesondere den Einfluß der Temperatur und des Luftdruckes auf die Ganggenauigkeit ausgleichen. Allgemein bekannt ist beispielsweise das Rostpendel, bei dem zur Temperaturkompensation mehrere Stäbe mit unterschiedlichem Temperaturkoeffizienten derart angeordnet sind, daß sich durch Wärmedehnungen die Schwerpunktlage des Pendels nicht verändert.Mechanical pendulum clocks have been built since around 1650. They reached their technical peak at the beginning of this century. Accuracies of better than 1/100 sec per day were achieved. This required complex compensators, which in particular compensate for the influence of temperature and air pressure on the accuracy. For example, the rust pendulum is generally known, in which several bars with different temperature coefficients are arranged for temperature compensation in such a way that the center of gravity of the pendulum does not change due to thermal expansion.
Trotz kostengünstig erhältlichen und mit sehr hoher Genauigkeit arbeitender Quarzuhren sind seit einigen Jahren mechanische Pendeluhren wieder auf dem Vormarsch. Beliebt sind sowohl restaurierte antike Uhren als auch Nachbauten derselben. Leider ist die Ganggenauigkeit solcher Uhren meist unbefriedigend. Zusätzlich zu den von Anfang an bestehenden Ungenauigkeiten durch Temperatur- und Luftdruckschwankungen sowie einfachen Hemmungssystemen kommt es im Laufe der Zeit zu Ungenauigkeiten durch Abnutzung des Räderwerkes und Verharzung des Öles in der Uhr. Abweichungen bis zu 10 Sekunden pro Tag sind dann normal, die heutzutage als stark störend empfunden werden. Dennoch will man häufig nicht auf solche Pendeluhren verzichten, oftmals schon allein wegen ihres schönen Schlags.In spite of the inexpensive available and very high accuracy quartz clocks, mechanical pendulum clocks have been on the rise again for some years. Both restored antique clocks and replicas of them are popular. Unfortunately, the accuracy of such watches is usually unsatisfactory. In addition to the inaccuracies that have existed from the beginning due to fluctuations in temperature and air pressure as well as simple escapement systems, inaccuracies in the course of time result from wear of the gear train and resinification of the oil in the watch. Deviations of up to 10 seconds per day are normal, which are perceived as very annoying these days. Nevertheless, one often does not want to do without such pendulum clocks, often simply because of their beautiful stroke.
Der Erfindung liegt das Problem zugrunde, einen Kompensator für eine mechanische Pendeluhr so auszubilden, daß die Pendeluhr mit ihm eine mit Quarzuhren vergleichbare Ganggenauigkeit erreicht und ein nachträgliches Verbessern der Ganggenauigkeit vorhandener Uhren mit möglichst geringem Aufwand und ohne sichtbare Veränderung der Pendeluhr möglich wird.The invention is based on the problem of designing a compensator for a mechanical pendulum clock in such a way that the pendulum clock achieves a precision comparable to that of quartz clocks and that subsequent improvement of the precision of existing clocks is possible with the least possible effort and without any visible change in the pendulum clock.
Dieses Problem wird erfindungsgemäß dadurch gelöst, daß der Kompensator eine am Pendel anzubringende motorische Schwerpunktverstelleinrichtung und zur Steuerung der Schwerpunktverstelleinrichtung eine einen Vergleicher bildende elektronische Steuerung aufweist, welche eingangsseitig mit einem elektronischen Taktgeber und einem Pendelfrequenzgeber verbunden ist.This problem is solved according to the invention in that the compensator has a motor-driven center of gravity adjustment device to be attached to the pendulum and an electronic control unit forming a comparator for controlling the center of gravity adjustment device, which is connected on the input side to an electronic clock generator and a pendulum frequency generator.
Mit einem solchen, einen elektronischen Taktgeber aufweisenden Kompensator läßt sich bei mechanischen Pendeluhren auch bei schwankenden Störeinflüssen eine gleich hohe Ganggenauigkeit erreichen wie bei einer Quarzuhr. Deshalb können dank der Erfindung mechanische Pendeluhren auch dann eingesetzt werden, wenn es auf eine hohe Ganggenauigkeit ankommt. Da der erfindungsgemäße Kompensator lediglich die Schwerpunktlage des Pendels verstellen muß, kann er ohne Umbauten der Pendeluhr sehr leicht nachträglich vorgesehen werden.With such a compensator, which has an electronic clock generator, mechanical pendulum clocks can achieve the same high level of accuracy as with a quartz clock, even with fluctuating interference. Therefore, thanks to the invention, mechanical pendulum clocks can also be used when high accuracy is important. Since the compensator according to the invention only has to adjust the center of gravity of the pendulum, it can easily be retrofitted without having to convert the pendulum clock.
Der erfindungsgemäße Kompensator kann aus in der Elektronik allgemein gebräuchlichen Bauteilen aufgebaut sein, wenn der Pendelfrequenzgeber ein am Pendel befestigter Resonanzschwinger und der Taktgeber ein Quarzreferenzschwinger ist.The compensator according to the invention can be constructed from components which are generally used in electronics if the pendulum frequency transmitter is a resonance oscillator attached to the pendulum and the clock generator is a quartz reference oscillator.
Mechanische Pendeluhren können die Genauigkeit von Atomuhren erreichen, wenn gemäß einer anderen Weiterbildung der Erfindung der Taktgeber eine Funkuhr aufweist.Mechanical pendulum clocks can achieve the accuracy of atomic clocks if, according to another development of the invention, the clock generator has a radio clock.
Die Funkuhr benötigt keine separate Antenne, wenn gemäß einer vorteilhaften Weiterbildung der Erfindung der die Funkuhr aufweisende Taktgeber an der Pendellinse angeordnet ist und die Pendelstange die Antenne der Funkuhr bildet.The radio clock does not require a separate antenna if, according to an advantageous further development of the invention, the clock having the radio clock is arranged on the pendulum lens and the pendulum rod forms the antenna of the radio clock.
Das nachträgliche Umrüsten vorhandener Pendeluhren durch Einbau des erfindungsgemäßen Kompensators ist besonders einfach und kostengünstig durchführbar, wenn alle seine Bauteile zur Anordnung an der Pendellinse ausgebildet sind.The retrofitting of existing pendulum clocks by installing the compensator according to the invention can be carried out particularly easily and inexpensively if all of its components are designed to be arranged on the pendulum lens.
Selbst Laien können ohne handwerkliches Geschick den erfindungsgemäßen Kompensator montieren, wenn alle seine Bauteile in einem einzigen, auf der Pendellinse befestigbaren Gehäuse angeordnet sind.Even laypeople can assemble the compensator according to the invention without manual skills if all of its components are arranged in a single housing that can be attached to the pendulum lens.
Eine andere, vorteilhafte Ausgestaltung der Erfindung besteht darin, daß alle Bauteile des Kompensators innerhalb der Pendellinse von der Pendellinse abgekapselt angeordnet sind. Hierdurch wird es möglich, bei vorhandenen Pendeluhren das Pendel gegen ein erfindungsgemäßes Pendel auszutauschen, um einen quarzgenauen Gang der Pendeluhr zu erreichen.Another advantageous embodiment of the invention is that all components of the compensator are arranged encapsulated within the pendulum lens by the pendulum lens. This makes it possible to replace the pendulum with a pendulum according to the invention in existing pendulum clocks in order to achieve a quartz-precise movement of the pendulum clock.
Die Schwerpunktverstelleinrichtung kann sehr unterschiedlich gestaltet sein. Sie muß ein Gewicht aufweisen, dessen Abstand von der Pendelachse verstellbar ist. Besonders einfach ist die Schwerpunktverstelleinrichtung ausgebildet, wenn sie eine drehbar gelagerte, von einem Elektromotor verdrehbare Scheibe mit außerhalb ihres Drehpunktes liegendem Schwerpunkt ist. Eine solche Scheibe kann beispielsweise an einer Stelle ein Gewicht tragen. Möglich ist es jedoch auch, bei ihr einen Sektor auszusparen, so daß sich ihre Schwerpunktlage durch Drehen der Scheibe verändert.The focus adjustment device can be designed very differently. You must have a weight whose distance from the pendulum axis is adjustable. The center of gravity adjustment device is particularly simple if it is a rotatably mounted disc that can be rotated by an electric motor and has a center of gravity that lies outside of its pivot point. Such a disc can carry a weight at one point, for example. However, it is also possible to have a sector with her recess so that their center of gravity changes by turning the disc.
Die Scheibe könnte analog verstellt werden, so daß eine stufenlose Veränderung der Schwerpunktlage und damit eine stufenlose Verstellung der Ganggeschwindigkeit der Pendeluhr erreicht wird. In der Praxis hat es sich als ausreichend erwiesen, wenn die Steuerung des Elektromotors der Scheibe zum Verstellen der Scheibe aus einer Mittelstellung in eine obere und eine untere Schwerpunktstellung ausgelegt ist. Eine solche Ausführungsform hat den Vorteil, daß nur selten eine Stellbewegung erforderlich wird, so daß der Energieverbrauch für die Verstellung gering ist und der erfindungsgemäße Kompensator mit einer kleinen Batterie sehr lange zu arbeiten vermag.The disc could be adjusted analogously, so that a continuous change in the center of gravity and thus a continuous adjustment of the speed of the pendulum clock is achieved. In practice, it has proven to be sufficient if the control of the electric motor of the disk is designed to move the disk from a middle position into an upper and a lower center of gravity position. Such an embodiment has the advantage that an adjusting movement is rarely required, so that the energy consumption for the adjustment is low and the compensator according to the invention can work with a small battery for a very long time.
Der Taktgeber muß die theoretisch benötigte Pendelfrequenz erzeugen. Da diese oft nicht bekannt ist, könnte die Elektronik im Quarzreferenzschwinger so ausgebildet sein, daß in einem Initialisierungsprozeß die Dauer der realen Pendelschwingung zunächst automatisch gemessen wird und als Bezugsgröße für einen als programmierbaren Teiler ausgebildeten Taktgeber benutzt wird. Der automatisch erfaßte Wert wird jedoch meistens nicht genau genug sein. Die Feinjustierung der Pendeluhr wird dann einfach durch inkrementelles Verstellen der Teilungszahl des Teilers erreicht. Ein Anhalten des Pendels kann hierbei vermieden werden, wenn gemäß einer Weiterbildung der Erfindung der Taktgeber als programmierbarer Teiler ausgebildet und zu seiner Einstellung ein mittels eines Magneten betätigbarer Hallschalter vorgesehen ist.The clock generator must generate the oscillation frequency theoretically required. Since this is often not known, the electronics in the quartz reference oscillator could be designed such that the duration of the real pendulum oscillation is first automatically measured in an initialization process and used as a reference variable for a clock generator designed as a programmable divider. However, the automatically recorded value will usually not be accurate enough. The fine adjustment of the pendulum clock is then achieved simply by incrementally adjusting the number of divisions of the divider. Stopping the pendulum can be avoided here if, according to a development of the invention, the clock generator is designed as a programmable divider and a Hall switch which can be actuated by means of a magnet is provided for its setting.
Die Erfindung läßt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist in der Zeichnung schematisch ein Pendel mit dem erfindungsgemäßen Kompensator dargestellt und wird nachfolgend beschrieben.The invention allows numerous embodiments. To further clarify its basic principle, a pendulum with the invention is shown schematically in the drawing Compensator shown and is described below.
Die Zeichnung zeigt ein Pendel 1, bei dem es sich um ein aus einer Pendelstange 2 und einer üblichen Pendellinse 3 zusammengesetztes Pendel handelt. Das untere Ende der Pendelstange 2 ist mit einem Gewinde 4 versehen, so daß man mittels einer Justierschraube 5 von Hand die Höhenlage der Pendellinse 3 verstellen kann, um die Ganggeschwindigkeit der Pendeluhr zu regulieren.The drawing shows a
Auf der Rückseite der Pendellinse 3 ist ein erfindungsgemäß ausgebildeter Kompensator 6 angeordnet. Dieser hat in einem angedeuteten Gehäuse 7 eine Schwerpunktverstelleinrichtung 8, welche eine um eine Drehachse 9 drehbare Scheibe 10 mit einem Gewicht 11 aufweist. Ein Elektromotor 12 vermag mittels einer Spindel 13 die Scheibe 10 zu verdrehen, welche zu diesem Zweck als Schneckenrad ausgebildet ist.A
Zum Ansteuern des Elektromotors 12 dient eine elektronische Steuerung 14, die als Vergleicher ausgebildet ist und die Signale eines als Quarzreferenzschwingers ausgebildeten, elektronischen Taktgebers 15 und eines Pendelfrequenzgebers 16 vergleicht. Kommt es zu einer Differenz zwischen der Referenzschwingung und der Pendelschwingung, dann wird der Elektromotor 12 angesteuert, so daß sich das Gewicht 11 durch Drehung der Scheibe 10 nach oben oder unten bewegt und sich dadurch die Pendelschwingung erhöht oder erniedrigt.To control the
Der Pendelfrequenzgeber 16 hat die Aufgabe, bei jeder vollen Schwingung des Pendels einen elektrischen Impuls zu erzeugen. Das kann auf verschiedene Weise verwirklicht werden. Beispielsweise kann man wie bei einer Taschenuhr ein mechanisches Resonanzsystem mit Spiralfeder und Schwingmasse vorsehen. Liegt die Eigenschwingung dieses Systems in der Nähe der Pendelfrequenz, so ergeben sich ausreichende Schwingungsamplituden, um einen Kontakt zu betätigen. Der Pendelfrequenzgeber 16 liefert also die "Ist-Frequenz".The
Das "Soll" wird vom Taktgeber 15 geliefert. Die Frequenz dieser Impulsfolge entspricht der rechnerisch aus dem Räderwerk der Pendeluhr ermittelten Pendelschwingung. Diese Schwingung des Taktgebers 15 ist quarzstabilisiert. Sie kann zum Beispiel durch einen programmierbaren Teiler erzeugt werden. Um eine Feineinstellung des Taktgebers 15 ohne Anhalten des Pendels 1 zu ermöglichen, ist am Taktgeber 15 ein mit einem Magneten zu betätigender Hallschalter 17 vorgesehen.The "target" is supplied by the
Bei der Steuerung 14 handelt es sich im wesentlichen um einen Auf-/Abwärts-Zähler. Stimmen die ankommenden Impulsfolgen überein, so steht dieser Zähler immer auf Null (die Uhr geht genau). Weichen die Impulsfolgen jedoch zeitlich voneinander ab, so akkumuliert sich der Fehler und der Zählerstand steigt oder fällt.The
- 11
- PendelPendulum
- 22nd
- PendelstangePendulum rod
- 33rd
- PendellinsePendulum lens
- 44th
- Gewindethread
- 55
- JustierschraubeAdjusting screw
- 66
- KompensatorCompensator
- 77
- Gehäusecasing
- 88th
- SchwerpunktverstelleinrichtungCenter of gravity adjustment
- 99
- DrehachseAxis of rotation
- 1010th
- Scheibedisc
- 1111
- GewichtWeight
- 1212
- ElektromotorElectric motor
- 1313
- Spindelspindle
- 1414
- Steuerungcontrol
- 1515
- TaktgeberClock
- 1616
- PendelfrequenzgeberPendulum frequency transmitter
- 1717th
- HallschalterHall switch
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4108935 | 1991-03-19 | ||
| DE4108935A DE4108935A1 (en) | 1991-03-19 | 1991-03-19 | COMPENSATOR FOR A MECHANICAL Pendulum Clock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0504625A1 true EP0504625A1 (en) | 1992-09-23 |
| EP0504625B1 EP0504625B1 (en) | 1995-11-22 |
Family
ID=6427663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92103129A Expired - Lifetime EP0504625B1 (en) | 1991-03-19 | 1992-02-25 | Compensator for a mechanical pendulum clock |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5268881A (en) |
| EP (1) | EP0504625B1 (en) |
| JP (1) | JPH05203765A (en) |
| AT (1) | ATE130686T1 (en) |
| DE (2) | DE4108935A1 (en) |
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| RU2718348C2 (en) * | 2015-08-11 | 2020-04-02 | Эта Са Мануфактюр Орложэр Сюис | Mechanical clock mechanism with feedback system |
| CN110955139A (en) * | 2018-09-27 | 2020-04-03 | 斯沃奇集团研究和开发有限公司 | Timepiece assembly comprising a mechanical oscillator associated with an average frequency control device |
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| CN1348555A (en) * | 1999-06-29 | 2002-05-08 | 精工电子有限公司 | Mechanical timepiece having train wheel operation controller |
| EP1164441A1 (en) * | 1999-12-24 | 2001-12-19 | Seiko Instruments Inc. | Mechanical timepiece having train wheel operation controller |
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| GB2376090B (en) * | 2001-11-16 | 2003-10-22 | Smith Of Derby Ltd | Adjustment of pendulum clocks |
| GB2383144B (en) * | 2001-12-14 | 2005-01-26 | Robert Alan Youngs | A device and method for the automatic regulation of a pendulum clock |
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| US8866328B1 (en) | 2011-06-07 | 2014-10-21 | Leidos, Inc. | System and method for generated power from wave action |
| US9331535B1 (en) | 2012-03-08 | 2016-05-03 | Leidos, Inc. | Radial flux alternator |
| US8876370B1 (en) | 2013-03-07 | 2014-11-04 | Mark E. Pampe | Pendulum-regulated clock |
| GB201319187D0 (en) * | 2013-10-30 | 2013-12-11 | Fromanteel Ltd | Pendulum bob |
| EP3191896B1 (en) * | 2014-09-09 | 2019-04-24 | The Swatch Group Research and Development Ltd | Combined resonator having improved isochronism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE452433C (en) * | 1926-01-15 | 1927-11-10 | Erich Zachariae | Device for setting and, if necessary, also for regulating the rate of clocks |
| FR1254583A (en) * | 1960-01-15 | 1961-02-24 | Method and device for adjusting a pendulum clock by means of electrical signals | |
| FR1388783A (en) * | 1963-11-28 | 1965-02-12 | Mavilor | Improvements made to processes and devices for exact time distribution |
| FR1439715A (en) * | 1965-07-12 | 1966-05-20 | Pristroje Lab N P | Method and installation for remote setting of master clock clocks by radio time signals |
| US3590573A (en) * | 1968-02-19 | 1971-07-06 | Hatot Leon Ets | System for synchronising timing devices |
| FR2305768A1 (en) * | 1975-03-27 | 1976-10-22 | Jauch Heinz | PROCESS AND DEVICE FOR QUARTZ-PRECISION SYNCHRONIZATION OF A MECHANICAL OSCILLATING SYSTEM |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU405100A1 (en) * | 1972-03-20 | 1973-10-22 | VPTB | |
| DE2905173A1 (en) * | 1979-02-10 | 1980-08-21 | Herbert Hummel | Synchroniser for spring driven clock - uses bipolar stepping motor for balance drive, controlled by alternating polarity clock pulses from quartz oscillator |
| DE2946506A1 (en) * | 1979-11-17 | 1981-05-27 | Jauch, Heinz, Dr., 7720 Schwenningen | Clock synchronisation system using received radio signal - has two comparator channels coupled to respective setting circuits for time-keeping adjustment |
| DE3110714A1 (en) * | 1981-03-19 | 1982-10-07 | Kieninger & Obergfell Fabrik für technische Laufwerke und Apparate, 7742 St Georgen | Device for synchronizing a clock having a torsion pendulum |
-
1991
- 1991-03-19 DE DE4108935A patent/DE4108935A1/en not_active Withdrawn
-
1992
- 1992-02-25 AT AT92103129T patent/ATE130686T1/en not_active IP Right Cessation
- 1992-02-25 DE DE59204384T patent/DE59204384D1/en not_active Expired - Fee Related
- 1992-02-25 EP EP92103129A patent/EP0504625B1/en not_active Expired - Lifetime
- 1992-03-16 JP JP4057910A patent/JPH05203765A/en active Pending
- 1992-03-18 US US07/853,385 patent/US5268881A/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE452433C (en) * | 1926-01-15 | 1927-11-10 | Erich Zachariae | Device for setting and, if necessary, also for regulating the rate of clocks |
| FR1254583A (en) * | 1960-01-15 | 1961-02-24 | Method and device for adjusting a pendulum clock by means of electrical signals | |
| FR1388783A (en) * | 1963-11-28 | 1965-02-12 | Mavilor | Improvements made to processes and devices for exact time distribution |
| FR1439715A (en) * | 1965-07-12 | 1966-05-20 | Pristroje Lab N P | Method and installation for remote setting of master clock clocks by radio time signals |
| US3590573A (en) * | 1968-02-19 | 1971-07-06 | Hatot Leon Ets | System for synchronising timing devices |
| FR2305768A1 (en) * | 1975-03-27 | 1976-10-22 | Jauch Heinz | PROCESS AND DEVICE FOR QUARTZ-PRECISION SYNCHRONIZATION OF A MECHANICAL OSCILLATING SYSTEM |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 085 17. März 1988 & JP-A-62 221 201 ( MATSUSHITA ELECTRIC WORKS LTD ) 29. September 1987 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2718348C2 (en) * | 2015-08-11 | 2020-04-02 | Эта Са Мануфактюр Орложэр Сюис | Mechanical clock mechanism with feedback system |
| CN110955139A (en) * | 2018-09-27 | 2020-04-03 | 斯沃奇集团研究和开发有限公司 | Timepiece assembly comprising a mechanical oscillator associated with an average frequency control device |
| CN110955139B (en) * | 2018-09-27 | 2021-10-01 | 斯沃奇集团研究和开发有限公司 | Timepiece assembly comprising a mechanical oscillator associated with an average frequency control device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4108935A1 (en) | 1992-09-24 |
| DE59204384D1 (en) | 1996-01-04 |
| ATE130686T1 (en) | 1995-12-15 |
| JPH05203765A (en) | 1993-08-10 |
| US5268881A (en) | 1993-12-07 |
| EP0504625B1 (en) | 1995-11-22 |
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