EP0191889B1 - Bell-ringing engine - Google Patents
Bell-ringing engine Download PDFInfo
- Publication number
- EP0191889B1 EP0191889B1 EP85105750A EP85105750A EP0191889B1 EP 0191889 B1 EP0191889 B1 EP 0191889B1 EP 85105750 A EP85105750 A EP 85105750A EP 85105750 A EP85105750 A EP 85105750A EP 0191889 B1 EP0191889 B1 EP 0191889B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- amplitude
- bell
- drive motor
- angle
- swing
- 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
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
- G10K1/28—Bells for towers or the like
- G10K1/30—Details or accessories
- G10K1/34—Operating mechanisms
- G10K1/344—Operating mechanisms for an oscillating bell which is driven once per cycle
- G10K1/345—Operating mechanisms for an oscillating bell which is driven once per cycle electrically operated
Definitions
- the invention relates to a method for operating a bell ringing machine with a reversible drive motor for a pendulum-driven bell and with a control device which switches the drive motor on and off over variable time or distance sections during one or both half-vibrations of the bell, after the ringing the steady state of the bell is maintained by reducing the electrical energy supplied to the drive motor by shortening the duty cycle or the switch-on distance per vibration.
- This object is achieved in a method for operating a bell ringing machine of the generic type according to the invention in that a setpoint for the swing-out angle is specified for the steady-state condition, upon reaching which the vibration energy required to hold the swing-out angle setpoint is determined and then the the drive motor supplied reduced electrical energy is set and that the loss energy of the oscillation system per oscillation or half-oscillation is determined from the difference ⁇ 2 of the last swing angle ⁇ , which the bell reaches when the upturn phase ends, and the next, however, reduced swing angle ⁇ , which the Bell reached after undergoing a drive-free, half or full vibration before setting the stop state.
- the particular advantage of the invention is that when the setpoint of the swing-out angle is reached, the engine is fed only that power loss that is required in the respective operating condition in order to maintain the predetermined swing-out angle. This is irrespective of the size of the excess energy that is supplied to the drive motor during the high-heat phase in order to quickly ring the bell to a predetermined swing-out angle.
- the determination of the energy loss or the differential energy that must be withdrawn from the engine during the transition from the high-wave phase to the steady state can be determined indirectly via the respective swing-out angles, which result under the conditions below and which are stored, processed and stored in a conventional computer can be converted into control variables for the drive motor.
- the angle actually reached and the swing-out angle reached in the previous half or full swing are determined and stored.
- a difference quantity is then formed from these two angles, which is proportional to the energy difference which results from those energies which have been supplied to the oscillation system in the last period under consideration and the previous, penultimate period.
- this energy difference is reflected in an increase in the potential energy through height gain, although part of the energy difference is consumed by the losses of the vibration system.
- the difference between the maximum swing angle and that of the previous swing angle is proportional to the sum of the energy loss and the potential energy supplied to the vibration system during the last period and can be used accordingly as a control or manipulated variable.
- This angle difference can be evaluated directly as an operation variable for the control of the drive motor; however, this quantity can also be related to the angular difference described above, in order to be able to eliminate the potential energy supplied to the system from the energy difference proportional thereto, in order to then reduce the electrical energy supplied to the drive motor in order to cover the losses let the steady system swing with the set point of the swing angle.
- the on-time or the on-travel for the drive motor which is defined per period for the up-phase, can be reduced in relation to the swing-out angle difference, which results from the last period of the high-rise process, in relation to the swing-out angle difference when changing to the holding state , which is determined in the inserted idle phase.
- this presupposes that the drive motor is operated with at least approximately constant power during the switch-on phases, which is the case with bell-ringing machines in which the bell is driven by an asynchronous motor which is coupled without slip usually is the case.
- the electrical energy supplied to the system per half-oscillation or oscillation is reduced to the extent that potential energy for obtaining a higher swing-out angle is no longer supplied to the bell and the achieved swing-out angle is maintained while covering the losses.
- the invention is further explained below with the aid of a calculation example.
- the drawing shows schematically the pendulum system of a bell with the associated swing angles.
- the drawing clarifies those swing-out angles that arise at one of the reversal points of the bell path when changing from the high-tide phase to the steady-state stop.
- the bell should reach the setpoint ⁇ of the swing angle.
- the bell In the last oscillation period before the target value ⁇ is reached, the bell only reaches the swing-out angle ⁇ 1. During the last oscillation period in the high-noise phase, so much energy is supplied to the oscillation system that the oscillation angle ⁇ 1 increases by the difference angle ⁇ 1.
- the swing-out angle decreases from the value ⁇ to the value ⁇ 2 during the idle period.
- the difference the swing-out angle during this period is ⁇ 2.
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zum Betrieb einer Glockenläutemaschine mit einem reversierbaren Antriebsmotor für eine pendelnd anzutreibende Glocke und mit einer Steuervorrichtung, die während einer oder beider Halbschwingungen der Glocke den Antriebsmotor über variable Zeit- oder Wegabschnitte ein- und ausschaltet, wobei nach dem Hochläuten der eingeschwungene Zustand der Glocke durch Verminderung der dem Antriebsmotor zugeführten, elektrischen Energie mittels Verkürzung der Einschaltdauer oder des Einschaltweges pro Schwingung gehalten wird.The invention relates to a method for operating a bell ringing machine with a reversible drive motor for a pendulum-driven bell and with a control device which switches the drive motor on and off over variable time or distance sections during one or both half-vibrations of the bell, after the ringing the steady state of the bell is maintained by reducing the electrical energy supplied to the drive motor by shortening the duty cycle or the switch-on distance per vibration.
Eine solches Verfahren ist aus der DE-A 20 52 367 bekannt. Dort wird der Antriebsmotor während einer stationären Betriebsphase mit reduzierter Antriebsleistung gefahren, die gerade ausreichen soll, um die Glocke in der erreichten Schwingungshöhe zu halten. Es sind in genannten Dokument jedoch keine Angaben darüber gemacht, wie bei unterschiedlichen Betriebsbedingungen die vorgegebene Schwingungshöhe der Glocke eingehalten werden kann. Gerade darin liegt ein besonderes Problem bei Glockenläutemaschinen, weil im eingeschwungenen Zustand eine optimale Intonation der Glocke erzielt werden soll.Such a method is known from DE-A 20 52 367. There, the drive motor is operated during a stationary operating phase with reduced drive power, which should just be sufficient to keep the bell at the vibration level reached. However, no information is given in the document mentioned about how the specified vibration level of the bell can be maintained under different operating conditions. This is a particular problem with bell ringing machines because the bell should be optimally intonated when it is in a steady state.
Betriebsverfahren der bekannten Art haben deshalb den Nachteil, daß sich im Laufe der Zeit und unter unterschiedlichen Bedingungen der Intonation der Glocke ändert. Infolge mechanischer Beeinträchtigungen insbesondere durch Witterungseinflüße, wie durch hohe und niedrige Temperaturen, kann sich eine relative Leicht- oder Schwergängigkeit der gesamten Glockenläutemaschine ergeben, was zumindest im eingeschwungenen Zustand zu unterschiedlichen Ausschwungwinkeln und damit zu der veränderten Intonation der Glocke führt.Operating methods of the known type therefore have the disadvantage that the bell's intonation changes over time and under different conditions. As a result of mechanical impairments in particular weather influences, such as high and low temperatures, can result in a relative ease or stiffness of the entire bell ringing machine, which, at least in the steady state, leads to different swing angles and thus to the changed intonation of the bell.
Es ist deshalb Aufgabe der Erfindung, eine Glockenläutemaschine der gattungsbildenden Art zu verbessern, indem der der optimalen Intonation entsprechende Ausschwungwinkel der Glocke im eingeschwungenen Zustand unabhängig von den jeweiligen Betriebsverhältnissen eingehalten wird.It is therefore an object of the invention to improve a bell ringing machine of the generic type by maintaining the swing-out angle of the bell corresponding to the optimal intonation in the steady state regardless of the respective operating conditions.
Diese Aufgabe wird bei einem Verfahren zum Betrieb einer Glockenläutemaschine der gattungsgemäßen Art nach der Erfindung dadurch gelöst, daß für den eingeschwungenen Zustand ein Sollwert für den Ausschwungwinkel vorgegeben wird, bei dessen Erreichen die vom Schwingungssystem zum Halten des Ausschwungwinkel-Sollwertes benötigte Verlustenergie ermittelt und darauf die dem Antriebsmotor zugeführte verminderte elektrische Energie eingestellt wird und daß die Verlustenergie des Schwingungssystems pro Schwingung oder Halbschwingung aus der Differenz Δα₂ des letzten Ausschwungwinkels α, den die Glocke mit der Beendgigung der Hochläutephase erreicht, und des nächstfolgenden, dagegen verminderten Ausschwungwinkels α ermittelt wird, den die Glocke nach Durchlaufen einer antriebsfreien, Halb- oder Vollschwingung vor der Einstellung des Haltezustandes erreicht.This object is achieved in a method for operating a bell ringing machine of the generic type according to the invention in that a setpoint for the swing-out angle is specified for the steady-state condition, upon reaching which the vibration energy required to hold the swing-out angle setpoint is determined and then the the drive motor supplied reduced electrical energy is set and that the loss energy of the oscillation system per oscillation or half-oscillation is determined from the difference Δα₂ of the last swing angle α, which the bell reaches when the upturn phase ends, and the next, however, reduced swing angle α, which the Bell reached after undergoing a drive-free, half or full vibration before setting the stop state.
Der besondere Vorteil der Erfindung liegt darin, daß mit dem Erreichen des Sollwertes des Ausschwungwinkels dem Motor nur noch diejenige Verlustarbeit zugeführt wird, die bei der jeweils vorhandenen Betriebsbedingung erforderlich ist, um den vorgegebenen Ausschwungwinkel beizubehalten. Dies ist unabhängig davon, wie groß die Überschußenergie ist, die dem Antriebsmotor während der Hochläutephase zugeführt wird, um die Glocke schnell auf einen vorgegebenen Ausschwungwinkel hochzuläuten.The particular advantage of the invention is that when the setpoint of the swing-out angle is reached, the engine is fed only that power loss that is required in the respective operating condition in order to maintain the predetermined swing-out angle. This is irrespective of the size of the excess energy that is supplied to the drive motor during the high-heat phase in order to quickly ring the bell to a predetermined swing-out angle.
Die Bestimmung der Verlustenergie oder der Differenzenergie, die dem Motor beim Übergang von der Hochläutephase in den eingeschwungenen Zustand entzogen werden muß, läßt sich mittelbar über die jeweiligen Ausschwungwinkel bestimmen, die sich unter den nachstehenden Bedingungen ergeben und die in einem üblichen Rechner gespeichert, verarbeitet und in Steuergrößen für den Antriebsmotor umgewandelt werden können.The determination of the energy loss or the differential energy that must be withdrawn from the engine during the transition from the high-wave phase to the steady state can be determined indirectly via the respective swing-out angles, which result under the conditions below and which are stored, processed and stored in a conventional computer can be converted into control variables for the drive motor.
Beim erstmaligen Überschreiben des Sollwertes des Ausschwungwinkels wird der tatsächlich erreichte Winkel und der bei der vorherigen Halb- oder Vollschwingung erreichte Ausschwungwinkel ermittelt und gespeichert. Von diesen beiden Winkeln wird dann eine Differenzgröße gebildet, die der Energiedifferenz proportional ist, die sich aus denjenigen Energien ergibt, die dem Schwingungssystem in der betrachteten letzten Periode und der vorangehenden, vorletzten Periode zugeführt worden sind. Auf der mechanischen Seite schlägt sich diese Energiedifferenz in einer Zunahme der potentiellen Energie durch Höhengewinn nieder, wobei allerdings ein Teil der Energiedifferenz von den Verlusten des Schwingungssystems aufgezehrt wird. Letztlich ist also die Differenz des maximalen Ausschwungwinkels zu dem des vorherigen Ausschwungwinkels der Summe der Verlustenergie und der dem Schwingungssystem zugeführten potentiellen Energie während der letzten Periode proportional und kann entsprechend als Regel- oder Stellgröße verwertet werden.When the setpoint of the swing-out angle is overwritten for the first time, the angle actually reached and the swing-out angle reached in the previous half or full swing are determined and stored. A difference quantity is then formed from these two angles, which is proportional to the energy difference which results from those energies which have been supplied to the oscillation system in the last period under consideration and the previous, penultimate period. On the mechanical side, this energy difference is reflected in an increase in the potential energy through height gain, although part of the energy difference is consumed by the losses of the vibration system. Ultimately, the difference between the maximum swing angle and that of the previous swing angle is proportional to the sum of the energy loss and the potential energy supplied to the vibration system during the last period and can be used accordingly as a control or manipulated variable.
Eine weitere Differenz zweier Ausschwungwinkel, die am Beginn und am Ende einer Leerlaufperiode des Schwingungssystems ermittelt werden, kann als proportionale Größe für die während dieser Periode aufgetretene Verlustenergie erfaßt werden. Man läßt dazu, sobald der Sollwert des Ausschwungwinkels erreicht ist, das System über eine Halb- oder eine Vollschwingung leer durchschwingen, wobei sich naturgemäß infolge der auftretenden Verluste zu Beginn und am Ende dieser Periode unterschiedliche Ausschwungwinkel ergeben. Diese Winkeldifferenz kann als Operationsgröße unmittelbar für die Steuerung des Antriebsmotors ausgewertet werden; man kann diese Größe jedoch auch in Relation zu der weiter oben beschriebenen Winkeldifferenz setzen, um aus der dazu proportionalen Energiedifferenz die dem System zugeführte potentielle Energie eliminieren zu können, um die dann die dem Antriebsmotor zugeführte elektrische Energie vermindert werden muß, um unter Deckung der Verluste das eingeschwungene System mit dem Sollwert des Ausschwungwinkels pendeln zu lassen.Another difference between two swing angles, at the beginning and at the end of an idle period of the Vibration system can be determined, can be recorded as a proportional variable for the energy loss that occurred during this period. As soon as the setpoint of the swing-out angle is reached, the system is allowed to swing through half or one full swing, which naturally results in different swing-out angles due to the losses occurring at the beginning and at the end of this period. This angle difference can be evaluated directly as an operation variable for the control of the drive motor; however, this quantity can also be related to the angular difference described above, in order to be able to eliminate the potential energy supplied to the system from the energy difference proportional thereto, in order to then reduce the electrical energy supplied to the drive motor in order to cover the losses let the steady system swing with the set point of the swing angle.
In guter Annäherung kann die Einschaltdauer oder der Einschaltweg für den Antriebsmotor, die pro Periode für die Hochläutephase festgelegt ist, beim Wechsel in den Haltezustand im Verhältnis, der Ausschwungwinkeldifferenz, die sich aus der letzten Periode des Hochläutevorgangs ergibt, im Verhältnis zu der Ausschwungwinkeldifferenz verkürzt werden, die in der eingeschobenen Leerlaufphase ermittelt wird. Das setzt natürlich voraus, daß während der Einschaltphasen der Antriebsmotor mit zumindest annähernd konstanter Leistung betrieben wird, was bei Glockenläutemaschinen, bei denen die Glocke von einem schlupffrei angekuppelten Asynchronmotor angetrieben wird, in der Regel der Fall ist. Dann vermindert sich nämlich die pro Halbschwingung oder Schwingung dem System zugeführte elektrische Energie beim Wechsel in den Haltezustand gerade in dem Maße, daß potentielle Energie zur Erlangung eines höheren Ausschwungwinkels der Glocke nicht mehr zugeführt und unter Deckung der Verluste der erreichte Ausschwungwinkel beibehalten wird.In a good approximation, the on-time or the on-travel for the drive motor, which is defined per period for the up-phase, can be reduced in relation to the swing-out angle difference, which results from the last period of the high-rise process, in relation to the swing-out angle difference when changing to the holding state , which is determined in the inserted idle phase. Of course, this presupposes that the drive motor is operated with at least approximately constant power during the switch-on phases, which is the case with bell-ringing machines in which the bell is driven by an asynchronous motor which is coupled without slip usually is the case. Then the electrical energy supplied to the system per half-oscillation or oscillation is reduced to the extent that potential energy for obtaining a higher swing-out angle is no longer supplied to the bell and the achieved swing-out angle is maintained while covering the losses.
Die Erfindung wird nachfolgend anhand der Zeichnung anhand eines Rechenbeispiels weiter erläutert. Dabei zeigt die Zeichnung schematisch das Pendelsystem einer Glocke mit den zugehörigen Ausschwungwinkeln.The invention is further explained below with the aid of a calculation example. The drawing shows schematically the pendulum system of a bell with the associated swing angles.
Im einzelnen verdeutlicht die Zeichnung diejenigen Ausschwungwinkel, die sich an einem der Umkehrpunkte des Glockenweges beim Wechsel von der Hochläutephase in den eingeschwungenen Haltezustand ergeben. Dabei soll die Glocke den Sollwert α des Ausschwungwinkels erreichen.In detail, the drawing clarifies those swing-out angles that arise at one of the reversal points of the bell path when changing from the high-tide phase to the steady-state stop. The bell should reach the setpoint α of the swing angle.
In der letzten Schwingungsperiode vor Erreichen des Sollwertes α erreicht die Glocke lediglich den Ausschwungwinkel α₁. Während der letzten Schwingungsperiode in der Hochläutephase wird dem Schwingungssystem soviel Energie zugeführt, daß sich der Schwingungswinkel α₁ um den Differenzwinkel Δα₁ vergrößert.In the last oscillation period before the target value α is reached, the bell only reaches the swing-out angle α₁. During the last oscillation period in the high-noise phase, so much energy is supplied to the oscillation system that the oscillation angle α₁ increases by the difference angle Δα₁.
Die während dieser letzten Schwingungsperiode zugeführte Energie ist dann
The energy supplied during this last period of vibration is then
Dabei bedeuten:
- GGl
- = Glockengewicht
- G Eq
- = Bell weight
Im Verhältnis zur gespeicherten Gesamtenergie E ergibt sich:
Die zuletzt zugeführte Energie ΔEZU ist ferner darstellbar als
wobei C eine Konstante für die mittlere Motorleistung und Δt₁ die Einschaltdauer des Antriebsmotors während der letzten Schwingungsperiode ist.The last supplied energy ΔE ZU can also be represented as
where C is a constant for the average motor power and Δt₁ is the duty cycle of the drive motor during the last oscillation period.
Für den Ausgleich der Verluste beträgt die zuzuführende Verlustenergie im eingeschwungenen Zustand während der Leerlaufperiode Δt₂
To compensate for the losses, the loss energy to be supplied in the steady state during the idle period is Δt₂
Wie dazu die Zeichnung zeigt, verringert sich während der Leerlaufperiode der Ausschwungwinkel von dem Wert α auf den Wert α ₂. Die Differenz des Ausschwungwinkels während dieser Periode beträgt Δα₂.As the drawing shows, the swing-out angle decreases from the value α to the value α ₂ during the idle period. The difference the swing-out angle during this period is Δα₂.
Am besten bestimmt man die im eingeschwungenen Zustand noch zuzuführende Energie aus dem Verhältnis ΔEV : ΔEZU . Da dann für beide Phasen, die Hochläutephase und den Haltezustand, die Motorkonstante C gleich ist, muß gelten:
Daraus folgt:
Solange Δα₂ < Δα₁ « α₁ ist, läßt sich weiter vereinfachen
Die Schlußfolgerung ist:
Wenn man die Winkeländerung Δα₁ der letzten Schwingungsperiode der Hochläutephase und die Verminderung Δα₂ des Schwingungswinkels der ersten, antriebsfreien Schwingungsperiode mißt, dann kann man das Zeitintervall für die Einschaltung des Antriebsmotors der Läutemaschine, das für die Hochläutephase festgelegt ist, für die eingeschwungene Phase im verhältnis Δα₂ : Δα₁ verkürzen und wird damit bei guter Näherung die Glocke auf dem Sollwert des Ausschwungwinkels halten können.The conclusion is:
If you look at the change in angle Δα₁ of the last oscillation period of the high-rise phase and the Reduction Δα₂ of the oscillation angle of the first, drive-free oscillation period measures, then you can shorten the time interval for switching on the drive motor of the ringing machine, which is set for the high-ring phase, for the steady-state phase in the ratio Δα₂: Δα₁, and will therefore close the bell if the approximation is good be able to maintain the setpoint of the swing angle.
Claims (3)
- Method of operating a bell actuating apparatus with a reversible drive motor for a bell which is to be driven to carry out a pendulum motion and with a control device which during a single semi-amplitude or both semi-amplitudes of the bell activates or deactivates the drive motor for variable periods of time and distances of length of travel, whereby after bringing the bell to its peak pendulum stage the attained condition of pendulum motion is maintained by way of decreasing the electrical energy which is passed to the drive motor by means of decreasing the duration of the on condition or the distance of travel of the switching travel per amplitude, characterized thereby that
for the attained condition of pendulum motion a value is preset in conformity with the amplitude angle upon attainment of which there is determined the dissipation energy which is necessary for the swing-system to maintain the pre-set value of the amplitude angle and thereafter the decreased electrical energy passed to the drive motor is set, and that the dissipation energy of the swing-system per full amplitude or semi-amplitude is determined from the difference (Δα₂) of the last amplitude angle (α) which the bell attains at the point of completion of the phase to reach its peak pendulum stage, and the next following but decreased amplitude angle (α₂) which the bell attains after carrying out a semi-amplitude or a full amplitude without being driven prior to attainment of the full stop condition. - Method according to Claim 1, characterized thereby that
initially for the last amplitude or semi-amplitude of the phase to reach the peak pendulum stage is determined the sum of the dissipation energy and the potential energy introduced to the swing-system from the difference (Δα₁) of the last amplitude angle (α) and the preceding: next-to-last, amplitude angle (α₁),
from this is deducted the subsequently determined dissipation energy, and the energy passed to the drive motor during the last amplitude or respectively semi-amplitude of the phase to reach the peak pendulum stage is decreased by the amount equivalent to the difference remaining as potential energy at the change to the condition of full stop. - Method according to Claim 2, characterized thereby that
as an approximation solution the period of duration of the on condition or the distance of length of travel of the switching travel of the drive motor per amplitude or semi-amplitude of the phase to reach the peak pendulum stage at the change to the condition of full stop is decreased in conformity with the ratio of the amplitude angle difference (Δα₂:Δα₁).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT85105750T ATE68283T1 (en) | 1985-02-14 | 1985-05-10 | BELL RINGING MACHINE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3505062 | 1985-02-14 | ||
| DE19853505062 DE3505062A1 (en) | 1985-02-14 | 1985-02-14 | BELL BELLING MACHINE |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0191889A2 EP0191889A2 (en) | 1986-08-27 |
| EP0191889A3 EP0191889A3 (en) | 1987-11-11 |
| EP0191889B1 true EP0191889B1 (en) | 1991-10-09 |
Family
ID=6262509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85105750A Expired - Lifetime EP0191889B1 (en) | 1985-02-14 | 1985-05-10 | Bell-ringing engine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0191889B1 (en) |
| AT (1) | ATE68283T1 (en) |
| DE (2) | DE3505062A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3701828A1 (en) * | 1987-01-23 | 1988-08-04 | Stuehrenberg Rolf | Control device for bell-ringing machines (chime machines) |
| DE3714465C3 (en) * | 1987-04-30 | 1995-06-29 | Philipp Hoerz Gmbh & Co Kg | Method for controlling the drive motor of a bell ringing machine and device for carrying out the method |
| ATE315268T1 (en) * | 1999-10-20 | 2006-02-15 | Joh Muff Ag | METHOD FOR CONTROLLING THE SWING ANGLE OF A CHURCH BELL |
| EP2551844B1 (en) * | 2011-07-28 | 2014-05-07 | Muff Kirchturmtechnik AG | Method for regulating the deflection angle of a bell and drive device for regulated operation of a bell coupled to the drive device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1945069A (en) * | 1930-03-21 | 1934-01-30 | Poole Mfg Co Inc | Clock |
| US2952013A (en) * | 1955-08-19 | 1960-09-06 | Josef Pfundner | Bell ringing machines |
| DE2052367A1 (en) * | 1970-10-24 | 1972-04-27 | Merk H | Bell-ringing machine |
| DE2756661B2 (en) * | 1977-12-19 | 1979-10-18 | Herforder Elektricitaets-Werke Bokelmann & Kuhlo, 4900 Herford | Bell ringing machine |
| DE3310567C2 (en) * | 1983-03-23 | 1985-12-12 | Paul 8263 Burghausen Salomon | Method for controlling the drive motor of a bell ringer and device for carrying out the method |
-
1985
- 1985-02-14 DE DE19853505062 patent/DE3505062A1/en active Granted
- 1985-05-10 DE DE8585105750T patent/DE3584366D1/en not_active Expired - Fee Related
- 1985-05-10 EP EP85105750A patent/EP0191889B1/en not_active Expired - Lifetime
- 1985-05-10 AT AT85105750T patent/ATE68283T1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DE3505062C2 (en) | 1988-08-18 |
| EP0191889A3 (en) | 1987-11-11 |
| DE3505062A1 (en) | 1986-08-14 |
| ATE68283T1 (en) | 1991-10-15 |
| EP0191889A2 (en) | 1986-08-27 |
| DE3584366D1 (en) | 1991-11-14 |
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