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DE743502C - Eye magnet made of a permanent magnet material with a preferred magnetic direction - Google Patents

Eye magnet made of a permanent magnet material with a preferred magnetic direction

Info

Publication number
DE743502C
DE743502CDEB198818DDEB0198818DDE743502CDE 743502 CDE743502 CDE 743502CDE B198818 DDEB198818 DDE B198818DDE B0198818 DDEB0198818 DDE B0198818DDE 743502 CDE743502 CDE 743502C
Authority
DE
Germany
Prior art keywords
eye
magnet
permanent magnet
magnetic
magnetic direction
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
Application number
DEB198818D
Other languages
German (de)
Inventor
Dr Hans Neumann
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.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co AG
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 Gebrueder Boehler and Co AGfiledCriticalGebrueder Boehler and Co AG
Priority to DEB198818DpriorityCriticalpatent/DE743502C/en
Application grantedgrantedCritical
Publication of DE743502CpublicationCriticalpatent/DE743502C/en
Expiredlegal-statusCriticalCurrent

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Description

Translated fromGerman

Augenmagnet aus einem Dauermagnetwerkstoff mit magnetischer VorzugsrichtungDie für Augenmagnete notwendigen großen Zugkräfte werden fast ausschließlich mitHilfe von Elektromagneten hergestellt. Augenmagnete aus einem Dauermagnetwerkstoffsind nur ganz vereinzelt auf den Markt gekommen; sie haben sich aber bisher nichtdurchsetzen können, da die magnetischen Zug. kräfte zu gering sind bzw. der Magnetbei entsprechend großer Dimensionierung zu unhandlich werden würde. Eine Verwendungvon Dauermagneten für Augenmagnete würde aber anderseits große Vorteile bieten,insbesondere im Hinblick auf die Unabhängigkeit von jeder Stromquelle, die bei derambulanten ärztlichen Versorgung sehr ins Gewicht fällt. Es bedeutete daher einengroßen Fortschritt, als man mit Hilfe der Dauennagnetlegierungen mit magnetischerVorzugsrichtung die für Augenmagnete notwendigen Zugkräfte leicht erzielen konnte.Trotzdem fanden die Augenmagnete aus einem Dauermagnetwerk. stoff mit magnetischerVorzugsrichtung keine vebreiterte Anwendung, weil bei Dauermagneten die Regelungsmöglichkeitder Zugkräfte nicht ohne weiteres gegeben ist. Nach vorliegender Erfindung wirddieser Übdstand dadurch behoben, daß bei Augenmagneten aus einem Dauermagnetwerkstoffmit magnetischer Vorzugsrichtung zwischen Polspitze und Magnet ein um 90° drehbarermagnetischer Körper eingeschaltet wird, der duch Drehung die Verbindung zwischenMagnet und Polspitze herstellt und somit eine ununterbrochene Zunahme der Zugkraft,ganz ähnlich wie beim Einschalten und Steigern dcs Stromes beim Elektromagneten,ermöglicht. Bei Nichtgebrauch wird der Magnet durch Zurückdrehen des beweglichenBestandteils kurz geschlossen und somit einer Schwächung des Magneten vorgebeugt.Eye magnet made of a permanent magnet material with a preferred magnetic directionThe large tensile forces necessary for eye magnets are almost exclusively withMade with the help of electromagnets. Eye magnets made from a permanent magnet materialhave only come onto the market very sporadically; but they have not yetcan prevail as the magnetic train. forces are too low or the magnetwould become too unwieldy if the dimensions were correspondingly large. One usepermanent magnets for eye magnets would, on the other hand, offer great advantages,especially with regard to the independence from any power source used in theoutpatient medical care is very important. So it meant onegreat progress than one with the help of permanent magnet alloys with magneticPreferred direction could easily achieve the tensile forces necessary for eye magnets.Nevertheless, the eye magnets found from a permanent magnet factory. fabric with magneticPreferred direction not widespread use, because permanent magnets offer the possibility of regulationthe tensile forces are not readily given. According to the present inventionThis objection is corrected by the fact that eye magnets are made from a permanent magnet materialwith a preferred magnetic direction between pole tip and magnet, one that can be rotated by 90 °magnetic body is switched on, the connection betweenProduces magnet and pole tip and thus an uninterrupted increase in tensile force,very similar to switching on and increasing the current in an electromagnet,enables. When not in use, the magnet can be moved back by turning theComponent short-circuited and thus prevented a weakening of the magnet.

Ein Ausführungsbeispiel eines Augenmagneten gemäß der Erfindung zeigendie Abb. I und 2 der Zeichnung, in welcher 1 den Dauermagneten mit Vorzugsrichturg, 2 den magnetischen Rückschluß, der auch aus einem permanent-magnetischen Materialbestehen kann, 3 den drehbaren magnetischen Rückschluß innerhalb des unmagnetischenTeils 4 und de Bezugsziffer 5 die Pclspitze des Magneten, die zweckmäßig an in sichbekannter Weise aus Eisen oder Eisen-Kobalt-Legie ungen besteht und zum Entfernenvon FRemdkörpern aus dem Auge dient, bedeuten. Show an embodiment of an eye magnet according to the inventionFigs. I and 2 of the drawing, in which 1 the permanent magnet with preferential directiong, 2 the magnetic yoke, which is also made of a permanent magnetic materialmay exist, 3 the rotatable magnetic yoke within the non-magneticPart 4 and de reference number 5 the Pclspitze of the magnet, which is useful in itselfknown way consists of iron or iron-cobalt alloys and for removalof foreign objects from the eye.

Claims (1)

Translated fromGerman
PATENTANSPRUCH: Augenmagnet aus einem Dauermagnetweerkstoff mit magnetischerVorzugsrichtung, dadurch gekennzeichnet, daß zur ]angsamen Einschaltung der magnetisierendenKraft an der Polspitze der vorher kurzgeschlossene Magnet durch die Drehbewegungeines magnetischen Kurzschlußstückes bei ruhendem Magneten magnetisch mit der Polspitzezu verbinden ist. PATENT CLAIM: Eye magnet made from a permanent magnet material with a magneticPreferred direction, characterized in that for the slow switching on of the magnetizingForce at the pole tip of the previously short-circuited magnet due to the rotary movementa magnetic short-circuit piece with the magnet at rest magnetically with the pole tipis to be connected.
DEB198818D1942-07-091942-07-09 Eye magnet made of a permanent magnet material with a preferred magnetic directionExpiredDE743502C (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
DEB198818DDE743502C (en)1942-07-091942-07-09 Eye magnet made of a permanent magnet material with a preferred magnetic direction

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
DEB198818DDE743502C (en)1942-07-091942-07-09 Eye magnet made of a permanent magnet material with a preferred magnetic direction

Publications (1)

Publication NumberPublication Date
DE743502Ctrue DE743502C (en)1943-12-28

Family

ID=7012074

Family Applications (1)

Application NumberTitlePriority DateFiling Date
DEB198818DExpiredDE743502C (en)1942-07-091942-07-09 Eye magnet made of a permanent magnet material with a preferred magnetic direction

Country Status (1)

CountryLink
DE (1)DE743502C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE1289200B (en)*1957-07-111969-02-13Krupp Gmbh Holding magnet system
US4679559A (en)*1986-10-071987-07-14Northwest Marine Technology Inc.Method and device for tagging a macro-organism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE1289200B (en)*1957-07-111969-02-13Krupp Gmbh Holding magnet system
US4679559A (en)*1986-10-071987-07-14Northwest Marine Technology Inc.Method and device for tagging a macro-organism

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