DE271779C - - Google Patents
Info
- Publication number
- DE271779C DE271779C DENDAT271779D DE271779DA DE271779C DE 271779 C DE271779 C DE 271779C DE NDAT271779 D DENDAT271779 D DE NDAT271779D DE 271779D A DE271779D A DE 271779DA DE 271779 C DE271779 C DE 271779C
- Authority
- DE
- Germany
- Prior art keywords
- mercury
- tubes
- spring
- tube
- switching
- 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.)
- Active
Links
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 11
- 229910052753 mercury Inorganic materials 0.000 claims description 11
- 230000004913 activation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/36—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by curled flexible tube, e.g. Bourdon tube
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/12—Alarms or signals
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/275—Control of temperature characterised by the use of electric means with sensing element expanding, contracting, or fusing in response to changes of temperature
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/16—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step
- H02P9/18—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step the switching being caused by a servomotor, measuring instrument, or relay
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Measuring Fluid Pressure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 271779 KLASSE 21c. GRUPPE- M 271779 CLASS 21c. GROUP
MAX MARTIN BOCK in HAMBURG.MAX MARTIN BOCK in HAMBURG.
und Apparate.and apparatus.
Patentiert im Deutschen Reiche vom 20. März 1913 ab.Patented in the German Empire on March 20, 1913.
Die vorliegende Erfindung soll dazu dienen, Druckdifferenzen, wie solche bei Luft- oder Wasserpumpen oder infolge von Wärmeveränderung auftreten, zum Regeln elektrischer Maschinen oder Apparate auszunutzen. Es gibt bereits Apparate, welche diesem Zwecke dienen, welche allerdings sehr kompliziert und vor allen Dingen ungenau sind. Vorliegende Erfindung soll diese Mängel beseitigen.The present invention is to serve to pressure differences, such as those in air or Water pumps or as a result of heat changes occur to control electrical machines or to exploit apparatus. There are already devices that serve this purpose, which, however, are very complicated and, above all, imprecise. Present Invention is intended to overcome these shortcomings.
ίο Der Apparat besteht aus einer an sich bekannten Röhren- oder · Plattenfeder, wie solche bei Manometern in Anwendung kommen, in Verbindung mit einer gleichfalls bekannten Quecksilberschaltröhre. Der zu erwirkende Schutz soll sich auf die Verbindung dieser für sich bekannten Teile beziehen. Die Vorteile der neuen Erfindung bestehen in folgendem: ίο The apparatus consists of a known per se Tubular or diaphragm springs, such as those used in pressure gauges, in Connection with an equally well-known mercury interrupter. The one to be achieved Protection should refer to the connection of these parts that are known per se. The advantages of the new invention consist in the following:
Die zum Betätigen der Quecksilberschaltröhre notwendige Bewegung ist sehr gering, da die Röhre nur so weit bewegt zu werden braucht, daß das Quecksilber ins Rollen kommt. Hierdurch wird mit ganz geringer Bewegung eine sehr gute Momentunterbrechung oder Einschaltung erreicht. Diese kleine Bewegung nun wird durch die Röhren- oder Plattenfeder noch sehr gut erreicht, und wird auf diese Weise, genau wie bei einem Manometer, eine große Genauigkeit erzielt. Es werden bereits verschiedentlich Apparate hergestellt, bei welchen die Bewegung einer derartigen Röhrenfeder zum Betätigen von Berührungskontakten benutzt wird. Da natürlich die Feder nur einen ganz kleinen Druck ausüben kann, so ,sind diese Kontakte sehr ungenau und vor allen Dingen nur für Stromstärken bis 2J10 Amp. verwendbar; abgesehen hiervon, tritt auch sehr häufig ein Festbrennen dieser Kontakte ein.The movement required to operate the mercury interrupter tube is very small, since the tube only needs to be moved so far that the mercury starts rolling. As a result, a very good moment interruption or activation is achieved with very little movement. This small movement is still very well achieved by the tubular or diaphragm spring, and in this way, just as with a manometer, great accuracy is achieved. Apparatuses are already variously manufactured in which the movement of such a tubular spring is used to actuate touch contacts. Since the spring can of course only exert a very small amount of pressure, these contacts are very imprecise and, above all, can only be used for currents up to 2 J 10 amps; apart from this, these contacts are also very often stuck.
Im Gegensatz dazu ist es mit dem neuen Apparat möglich, Stromstärken bis zu beliebiger Höhe, eventuell durch Parallelschaltung mehrerer Röhren, zu unterbrechen; ebenso ist die Genauigkeit beim Ein- und Ausschalten sehr groß.In contrast, with the new device it is possible to generate currents up to any desired Interrupt the height, possibly by connecting several tubes in parallel; as is the accuracy when switching on and off is very high.
In Fig. ι bis 3 sind Apparate mit Röhrenfedern, in Fig. 4 ist der Apparat mit einer Plattenfeder dargestellt. Die Röhrenfeder a trägt an ihrem Ende einen Hebel f, welcher, wiederum durch einen Kniehebel d mit der Quecksilberröhre in Verbindung steht. Durch den Druck biegt sich die Röhre α und betätigt somit die Quecksilberröhre. In Fig. 2 ist eine Röhre mit drei Kontakten dargestellt. In Fig. 3 ist mit der Quecksilberröhre ein Zeiger verbunden, welcher gleichzeitig den bestehenden Druck anzeigt und somit gleich eine Einstellung ermöglicht.In Fig. 1 to 3 apparatuses with tube springs are shown, in Fig. 4 the apparatus is shown with a plate spring. The tube spring a carries at its end a lever f, which is in turn connected to the mercury tube by a toggle lever d. As a result of the pressure, the tube α bends and thus actuates the mercury tube. In Fig. 2, a tube with three contacts is shown. In Fig. 3, a pointer is connected to the mercury tube, which at the same time indicates the existing pressure and thus enables an adjustment.
Claims (4)
Publications (1)
Publication Number | Publication Date |
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DE271779C true DE271779C (en) |
Family
ID=528401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT271779D Active DE271779C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE271779C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5139074A (en) * | 1991-04-03 | 1992-08-18 | Kelley Company Inc. | Industrial door having flexible and releasable beam |
US5222541A (en) * | 1992-07-22 | 1993-06-29 | Kelley Company, Inc. | Industrial door having releasable beam and tension bracket retention mechanism |
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0
- DE DENDAT271779D patent/DE271779C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5139074A (en) * | 1991-04-03 | 1992-08-18 | Kelley Company Inc. | Industrial door having flexible and releasable beam |
US5222541A (en) * | 1992-07-22 | 1993-06-29 | Kelley Company, Inc. | Industrial door having releasable beam and tension bracket retention mechanism |
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