DE380777C - Thermometer, based on the change in shape of a metal strip made of dissimilar metals - Google Patents
Thermometer, based on the change in shape of a metal strip made of dissimilar metalsInfo
- Publication number
- DE380777C DE380777C DEK79202D DEK0079202D DE380777C DE 380777 C DE380777 C DE 380777C DE K79202 D DEK79202 D DE K79202D DE K0079202 D DEK0079202 D DE K0079202D DE 380777 C DE380777 C DE 380777C
- Authority
- DE
- Germany
- Prior art keywords
- shape
- change
- thermometer
- metal strip
- dissimilar metals
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
- G01K5/56—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid
- G01K5/62—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip
- G01K5/70—Measuring temperature based on the expansion or contraction of a material the material being a solid constrained so that expansion or contraction causes a deformation of the solid the solid body being formed of compounded strips or plates, e.g. bimetallic strip specially adapted for indicating or recording
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tape Measures (AREA)
Description
Thermometer, beruhend auf der Formänderung eines aus ungleichartigen metallen bestehenden Metallbandes. Thermometer, insbesondere Taschenthermometer, bei welchen die Temperatur durch die Formveränderung eines aus ungleichartigen Metallen bestehenden Metallbandes gemessen wird, dessen eines Ende an einem festen Punkt befestigt ist, während sein anderes Ende direkt auf die den Zeiger tragende Welle wirkt, sind bekannt.Thermometer based on the change in shape of one of the dissimilar ones existing metal band. Thermometers, especially pocket thermometers, at which the temperature is determined by the change in shape of one of dissimilar metals existing metal tape is measured, one end of which is at a fixed point is attached, while its other end directly to the shaft carrying the pointer works are known.
Gemäß vorliegender Erfindung erfolgt die Befestigung des einen Endes des Metallbandes an einem festen Bolzen, beispielsweise durch lslemmung, in einem gewissen Abstand von seinem äußersten Ende, um die wirksame Länge des Zeigers gegenüber der Skala des Zifferblattes regeln zu können.According to the present invention, one end is fastened of the metal band on a fixed bolt, for example by locking, in one some distance from its extreme end as opposed to the effective length of the pointer to be able to regulate the scale of the dial.
Hierbei können die Windungen des Bandes verschiedenartige Formen haben, sie können z. B. spiralförmig oder sternartig sein.The turns of the tape can have different shapes, you can z. B. be spiral or star-shaped.
In der beiliegenden Zeichnung sind beispielsweise zwei verschiedene Ausführungsbeispiele dargestellt.For example, in the accompanying drawing there are two different ones Exemplary embodiments shown.
Abb. i ist ein Querschnitt eines die Erfindung verkörpernden Thermometers.Fig. I is a cross section of a thermometer embodying the invention.
Abb. 2 ist ein Schnitt nach A-A der Abb. i. Abb. 3 ist eine Draufsicht der Abb. i. Abb. d. zeigt eine -Variante bezüglich der Form des Metallbandes.Fig. 2 is a section along A-A of Fig. I. Fig. 3 is a plan view of fig. i. Fig. D. shows a variant with regard to the shape of the metal strip.
In der Ausführungsform nach Abb. 1 bis 3 ist a ein Metallband aus ungleichartigem -Metall, welches zwischen zwei parallelen Ebenen x--t- und y-y angeordnet ist, deren Entfernung voneinander gleich der Breite des Bandes ist. Das äußere Ende des Bandes a. ist in einem auf der Platte c angeordneten Bolzen 17 festgeklemmt, und das innere Ende desselben Bandes ist an einem auf der Welle e des Zeigern f befestigten Ring d befestigt, so daß jede Formänderung der Windungen der Spiralfeder a eine Verstellung des Zeigers f im einen oder anderen Sinne zur Folge hat.In the embodiment according to Fig. 1 to 3, a is a metal band dissimilar metal, which is arranged between two parallel planes x - t - and y-y whose distance from one another is equal to the width of the tape. The outer end of the tape a. is clamped in a bolt 17 arranged on the plate c, and the inner end of the same band is at one on the shaft e of the pointer f attached ring d attached so that any change in shape of the turns of the coil spring a results in an adjustment of the pointer f in one sense or another.
Die Winkelverstellungen des Zeigers f werden auf einer Skala g abgelesen.The angular adjustments of the pointer f are read off on a scale g.
Das Band a aus ungleichartigen -Metallen kann z. B. dadurch hergestellt werden, daß ein Band aus Messing auf ein Band aus Stahl aufgeschweißt wird.The band a of dissimilar metals can, for. B. produced thereby be that a band made of brass is welded to a band made of steel.
Das Band wird vorteilhaft eine Dicke von weniger als 0.3 mm aufweisen und derart berechnet, daß die Winkelbewegung des Zeigers bei einer Temperatur von 6o' C mehr als eine halbe Drehung bedingt.The band will advantageously have a thickness of less than 0.3 mm and will be calculated in such a way that the angular movement of the pointer at a temperature of 60 ° C. causes more than half a rotation.
Abb. q. zeigt eine Änderung in bezug auf die Form der Windungen des Metallbandes: statt spiralförmig zu sein, sind dieselben hier sternartig, wobei deren Windungen wie bei der Spiralfeder zwischen zwei Ebenen liegen, deren Entfernung voneinander gleich der Breite des Bandes ist.Fig.q. shows a change in the shape of the turns of the Metal band: instead of being spiral-shaped, the same here are star-like, whereby the coils of which lie between two levels, as in the case of the spiral spring, the distance between them from each other is equal to the width of the tape.
Dieses Band wirkt genau so wie dasjenige der ersten Ausführungsform.This tape functions exactly like that of the first embodiment.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK79202D DE380777C (en) | Thermometer, based on the change in shape of a metal strip made of dissimilar metals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK79202D DE380777C (en) | Thermometer, based on the change in shape of a metal strip made of dissimilar metals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE380777C true DE380777C (en) | 1923-09-11 |
Family
ID=7233482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK79202D Expired DE380777C (en) | Thermometer, based on the change in shape of a metal strip made of dissimilar metals |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE380777C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1173395B (en) * | 1957-12-27 | 1964-07-02 | Beteiligungs & Patentverw Gmbh | Protective device for the mechanical drive of ship lifts |
-
0
- DE DEK79202D patent/DE380777C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1173395B (en) * | 1957-12-27 | 1964-07-02 | Beteiligungs & Patentverw Gmbh | Protective device for the mechanical drive of ship lifts |
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