AT79575B - Method for fastening insulation blocks in openings in flat metal bodies, for example relay armatures or contact springs. - Google Patents
Method for fastening insulation blocks in openings in flat metal bodies, for example relay armatures or contact springs.Info
- Publication number
- AT79575B AT79575B AT79575DA AT79575B AT 79575 B AT79575 B AT 79575B AT 79575D A AT79575D A AT 79575DA AT 79575 B AT79575 B AT 79575B
- Authority
- AT
- Austria
- Prior art keywords
- openings
- contact springs
- insulation blocks
- flat metal
- metal bodies
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims description 8
- 238000009413 insulation Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 6
- 229920001875 Ebonite Polymers 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000001413 cellular effect Effects 0.000 claims 1
- 229920002160 Celluloid Polymers 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Befestigung von solationsklötzchen in Öffnungen flacher Metallkörper, beispielsweise Relaisanker oder Kontaktfedern.
Namentlich in elektrischen Fernsprechanlagen hat sich ergeben, dass die Befestigung kleiner Isolationsklötzchen in flachen Metallkörpern, beispielsweise in Relaisankern oder Kontaktfedern, sieb im Lauf des Betriebes als mangelhaft erweist. Insbesondere leidet die Befestigung dieser Isolationsklötzchen unter hohen Temperaturen, wie sie beispielsweise in Fernsprechanlagen mit selbsttätigem oder halbselbsttätigem Betrieb auftreten. Diese Temperaturen können sich da ungefähr auf 80 bis 90 C steigern. das erwärmte Isolationsmaterial verändert dabei seine Gestalt oft so weit, dass es z. B. die Kontaktfedern, auf die der Relaisanker einwirkt, ungeachtet der Ankerstellung in dauernder Berührung hält und so erhebliche Betriebsstörungen verursacht.
Auch kann es vorkommen, dass die Isolationsklötzchen unter dem Einfluss ihrer Formänderung aus ihrer Befestigungsöffnung herausfallen.
Gemäss der Erfindung werden diese Übelständc durch Anwendung eines Verfahrens beseitigt, das auf der bekannten und verschiedentlich in der Technik verwendeten Eigenschaft des Zelluloids und ähnlicher Stoffe beruht, eine ihm durch Pressen, Ziehen oder einen ähnlichen Vorgang mitgeteilte Formveränderung zunächst beizubehalten und bei
EMI1.1
wird gemäss dem neuen Verfahren das Hartgummi, Zelluloid oder dgl., zweckmässig unter geeigneter Erwärmung, durch Dfuck verdichtet, alsdann, gegebenenfalls nach entsprechender Formgebung, in die Öffnung des Metallkörpers eingesetzt und schliesslich wieder erwärmt.
EMI1.2
wieder Hinzunehmen, und befestigt sich dadurch in ausserordentlich sicherer Weise in dem Metallkörper.
Dadurch. dass der Druck zur Verdichtung beliebig gesteigert werden kann. wird das Wiederausdehnungsvoermögen des Isolationsklötzchens behufs Befestigung in den Metallteilen besonders wirksam.
Für viele F : i. Ue ist es zweckmässig, das verdichtete Material entsprechend dem Ver- wendungszweck durch Schneiden, Drehen oder eine sonstige Bearbeitung so zu fotmen,
EMI1.3
so besser anpasst.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Method for fastening insulation blocks in openings in flat metal bodies, for example relay anchors or contact springs.
In electrical telephone systems in particular, it has been shown that the fastening of small insulation blocks in flat metal bodies, for example in relay armatures or contact springs, proves to be inadequate during operation. In particular, the attachment of these insulation blocks suffers from high temperatures, such as occur, for example, in telephone systems with automatic or semi-automatic operation. These temperatures can increase to approximately 80 to 90 C. the heated insulation material often changes its shape so far that it is z. B. the contact springs on which the relay armature acts, regardless of the armature position, keeps in constant contact and thus causes significant malfunctions.
It can also happen that the insulation blocks fall out of their fastening opening under the influence of their change in shape.
According to the invention, these disadvantages are eliminated by using a method which is based on the known property of celluloid and similar substances, which is used in various ways in technology, of initially maintaining and at the same time a change in shape communicated to it by pressing, pulling or a similar process
EMI1.1
According to the new process, the hard rubber, celluloid or the like is compressed by pressure, suitably with suitable heating, then, if necessary after appropriate shaping, inserted into the opening of the metal body and finally heated again.
EMI1.2
again, and thereby fastened in an extremely secure manner in the metal body.
Thereby. that the pressure for compression can be increased as desired. the re-expansion capacity of the insulation block for fastening in the metal parts is particularly effective.
For many F: i. It is useful to photograph the compacted material according to the intended use by cutting, turning or other processing so that
EMI1.3
so better adapts.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE79575X | 1914-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT79575B true AT79575B (en) | 1919-12-29 |
Family
ID=5638719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT79575D AT79575B (en) | 1914-04-15 | 1915-04-07 | Method for fastening insulation blocks in openings in flat metal bodies, for example relay armatures or contact springs. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT79575B (en) |
-
1915
- 1915-04-07 AT AT79575D patent/AT79575B/en active
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