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DE1051095B - Bi-strip that bends when it gets warm - Google Patents

Bi-strip that bends when it gets warm

Info

Publication number
DE1051095B
DE1051095B DES51554A DES0051554A DE1051095B DE 1051095 B DE1051095 B DE 1051095B DE S51554 A DES51554 A DE S51554A DE S0051554 A DES0051554 A DE S0051554A DE 1051095 B DE1051095 B DE 1051095B
Authority
DE
Germany
Prior art keywords
strip
threads
strips
bends
rods
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.)
Pending
Application number
DES51554A
Other languages
German (de)
Inventor
Dr Sc Nat Walter Haenlein
Dipl-Phys Wilhelm Baum
Dr Rer Nat Werner Oldekop
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Priority to DES51554A priority Critical patent/DE1051095B/en
Publication of DE1051095B publication Critical patent/DE1051095B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/08—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with bimetallic element

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Resistance Heating (AREA)

Description

Bi-Streifen, der sich bei Erwärmung krümmt In der Technik finden in Sicherungs-, Regel- oder Steuereinrichtungen Bi-Metallstreifen mannigfaltige Anwendung. Ihre Wirkungsweise beruht darauf, daß sich diese Streifen bei Erwärmung über eine vorgegebene Temperatur hinaus krümmen. Die Wärmeübertragung erfolgt oft durch Heizwicklungen. Damit der Bi-Metallstreifen eine hinreichende Empfindlichkeit aufweist, soll die Wärmeübertragung möglichst trägheitslos erfolgen. Um dies zu erreichen, ist es erforderlich, daß die Heizwicklung in möglichst engen Kontakt mit den Bi-Metallstreifen gebracht ist. Da es sich im allgemeinen, zumindest in der Feinmeßtechnik, um sehr feine Heizwicklungen handelt, bietet das Isolationsproblem oft erhebliche Schwierigkeiten.Bi-strip that bends when heated Securing, regulating or control devices Bi-metal strips diverse applications. Their mode of action is based on the fact that these strips when heated over a bend the given temperature. The heat is often transferred through heating coils. So that the bimetal strip has sufficient sensitivity, the Heat transfer should take place with as little inertia as possible. To achieve this it is necessary to that the heating coil is brought into contact with the bi-metal strips as closely as possible is. Since it is generally, at least in precision measurement technology, very fine heating windings the isolation problem often presents considerable difficulties.

Gegenstand der Erfindung ist ein streifen- oder stabförmiges Bauelement, das sich bei Erwärmung krümmt und elektrisch nichtleitend ist. Bei der Verwendung dieses Bauelementes an Stelle von Bi-Metallstreifen in den obengenannten Einrichtungen treten die erwähnten Schwierigkeiten nicht auf. Das Bauelement gemäß der Erfindung ist aus zwei Glasstreifen oder -stäben mit verschiedenen thermischen Ausdehnungskoeffizienten hergestellt; es sei in Anlehnung an den allgemein bekannten Begriff des Bi-Metallstreifens als Bi-Streifen oder Bi-Stab bezeichnet. Bei einer vorteilhaften Ausführungsform des Bauelementes gemäß der Erfindung besteht dieses aus einem Bündel von Glasfäden, die je aus zwei Glasfäden mit verschiedenen thermischen Ausdehnungskoeffizienten hergestellt sind (Bi-Fäden).The subject of the invention is a strip or rod-shaped component, which bends when heated and is electrically non-conductive. When using this component instead of bi-metal strips in the above-mentioned facilities the difficulties mentioned do not arise. The component according to the invention is made of two glass strips or rods with different thermal expansion coefficients manufactured; it is based on the well-known term of the bi-metal strip referred to as a bi-strip or bi-rod. In an advantageous embodiment of the component according to the invention, this consists of a bundle of glass threads, each made of two glass threads with different thermal expansion coefficients are made (bi-threads).

Bi-Streifen, -Stäbe oder -Fäden der vorerwähnten Art lassen sich in einfacher Weise herstellen. Man kann z. B. so verfahren, daß zwei Fäden, Streifen oder Stäbe aus Glas mit verschiedenen thermischen Ausdehnungskoeffizienten in einer Flamme zu einem einzigen Faden, Streifen oder Stab zusammengezogen werden. Mehrere solcher Fäden, Streifen oder Stäbe können zu einem Bündel, z. B. mit Hilfe von Schellen, zusammengefügt werden. Es empfiehlt sich die Verwendung möglichst dünner Fäden, da in diesem Falle bereits geringe Unterschiede der thermischen Ausdehnungskoeffizienten ausreichend sind und dann die Gefahr, daß die Komponenten infolge gegenseitiger Spannungen brechen oder sich lösen, praktisch vermieden wird.Bi-strips, rods or threads of the aforementioned type can be used in easy way to manufacture. You can z. B. proceed so that two threads, strips or rods made of glass with different thermal expansion coefficients in one Flame can be drawn together into a single thread, strip or rod. Several such threads, strips or rods can be made into a bundle, e.g. B. with the help of clamps, be joined together. It is recommended to use threads that are as thin as possible, because in this case there are already slight differences in the thermal expansion coefficients are sufficient and then the risk that the components as a result of mutual Breaking or loosening tension is practically avoided.

Claims (1)

PATENTANSPRÜCHE: 1. Bi-Streifen, der sich bei Erwärmung krümmt, dadurch gekennzeichnet, daß er aus zwei Glasstreifen oder -stäben mit verschiedenen thermischen Ausdehnungskoeffizienten hergestellt ist. z. Bi-Streifen nach Anspruch 1, dadurch gekennzeichnet, daß er aus einem Bündel von vorzugsweise dünnen Glasfäden besteht, die je aus zwei Bi-Fäden mit verschiedenen thermischen Ausdehnungskoeffizienten hergestellt sind. 3. Verfahren zur Herstellung eines Di-Streifens nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwei Fäden, Streifen oder Stäbe aus Glas mit verschiedenen thermischen Ausdehnungskoeffizienten in einer Flamme zu einem einzigen Faden, Streifen oder Stab zusammengezogen und mehrere solcher Fäden, Streifen oder Stäbe zu einem Bündel, z. B. mit Hilfe von Schellen, zusammengefügt werden. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 860 266; Machine Design, June 28, 1956, S. 6. PATENT CLAIMS: 1. Bi-strip, which bends when heated, characterized in that it is made from two glass strips or rods with different thermal expansion coefficients. z. Bi-strip according to claim 1, characterized in that it consists of a bundle of preferably thin glass threads which are each made of two Bi-threads with different thermal expansion coefficients. 3. A method for producing a di-strip according to claim 1 or 2, characterized in that two threads, strips or rods made of glass with different thermal expansion coefficients are drawn together in a flame to form a single thread, strip or rod and several such threads, strips or Rods in a bundle, e.g. B. with the help of clamps. Documents considered: German Patent No. 860 266; Machine Design, June 28, 1956, p. 6.
DES51554A 1956-12-11 1956-12-11 Bi-strip that bends when it gets warm Pending DE1051095B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES51554A DE1051095B (en) 1956-12-11 1956-12-11 Bi-strip that bends when it gets warm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES51554A DE1051095B (en) 1956-12-11 1956-12-11 Bi-strip that bends when it gets warm

Publications (1)

Publication Number Publication Date
DE1051095B true DE1051095B (en) 1959-02-19

Family

ID=7488300

Family Applications (1)

Application Number Title Priority Date Filing Date
DES51554A Pending DE1051095B (en) 1956-12-11 1956-12-11 Bi-strip that bends when it gets warm

Country Status (1)

Country Link
DE (1) DE1051095B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284715B (en) * 1964-09-04 1968-12-05 Associated Spring Corp Coil spring strap coupling

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860266C (en) * 1942-05-23 1952-12-18 Rheinisch Westfaelisches Kunst Process for producing springs from plastic and the device used for this purpose

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE860266C (en) * 1942-05-23 1952-12-18 Rheinisch Westfaelisches Kunst Process for producing springs from plastic and the device used for this purpose

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284715B (en) * 1964-09-04 1968-12-05 Associated Spring Corp Coil spring strap coupling

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