AT32097B - Rheostat for medical and similar purposes. - Google Patents

Rheostat for medical and similar purposes.

Info

Publication number
AT32097B
AT32097B AT32097DA AT32097B AT 32097 B AT32097 B AT 32097B AT 32097D A AT32097D A AT 32097DA AT 32097 B AT32097 B AT 32097B
Authority
AT
Austria
Prior art keywords
rheostat
medical
similar purposes
graphite
current
Prior art date
Application number
Other languages
German (de)
Inventor
Theodor Reishoff
Original Assignee
Theodor Reishoff
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 Theodor Reishoff filed Critical Theodor Reishoff
Application granted granted Critical
Publication of AT32097B publication Critical patent/AT32097B/en

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Description

  

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Damit nun eine Berührung der metallischen Kontakte r, s und des   Kontaktstückes i   nach Vollendung einer Umdrehung auf der anderen Seite nicht stattfinden kann, ist an 
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 Strom von der Klemme b (Fig. 3) durch Leitung   c,   Kontakte r bzw. s zu dem Kontaktstück i und von dort unter Vermittlung des Metallstreifens n und der Leitung y zur Klemme c und von hier zum Induktionsapparat bzw. Stromquelle. In diesem Falle ist der Widerstand kurz geschlossen, d. h. es bietet sich dem Strom kein Widerstand'und infolgedessen wird der volle Strom vom Rheostaten abgegeben.

   Wird dagegen das Kontaktstück i in Richtung des in Fig. 2 und 3 eingezeichneten Pfeiles gedreht, dann gelangt es von den Kontaktstellen auf den mit Graphit bestrichenen Schmirgelpapierstreifenteil t. Da letzterer, 
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 verjüngende Graphitfläche bewegt und dadurch der Widerstand allmählich gesteigert. Es ergibt sich hieraus, dass man durch Drehen am Knopfe k in der Lage ist, jederzeit die Stärke des Stromes langsam ansteigen bzw. abnehmen zu lassen, ohne dass der Patient irgendwelche ruckweisen Erschütterungen erhält. 



   Der Schmirgelpapiorstreifen p braucht aber nicht unbedingt ringförmig zu sein, sondern es genügt auch der sichelförmige Teil t an sich, welcher, wie in der vorbeschriebenen Weise, mit Graphit bestrichen ist.



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It is on so that the metallic contacts r, s and the contact piece i cannot touch after completing one revolution on the other side
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 Current from terminal b (Fig. 3) through line c, contacts r or s to contact piece i and from there through the intermediary of metal strip n and line y to terminal c and from here to the induction apparatus or power source. In this case the resistor is short-circuited, i.e. H. there is no resistance to the current and as a result the full current is delivered by the rheostat.

   If, on the other hand, the contact piece i is rotated in the direction of the arrow drawn in FIGS. 2 and 3, then it passes from the contact points onto the sandpaper strip part t coated with graphite. Since the latter,
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 tapering graphite surface moves and thereby the resistance gradually increases. It follows from this that by turning the button k one is able to slowly increase or decrease the strength of the current at any time without the patient receiving any jerks.



   The emery paper strip p does not necessarily have to be ring-shaped, but the sickle-shaped part t itself is sufficient, which, as in the manner described above, is coated with graphite.

 

Claims (1)

PATENT-ANSPRUCH : Rheostat für medizinische und ähnliche Zwecke, bei dem ein Schleifkontakt Ober eine aus Graphit oder ähnlichem Material bestehende Fläche bewegt wird, dadurch gekennzeichnet, dass die Widerstandsplatte (p) aus mit Bleistift oder Graphit bestrichenem Schmirgelpapier besteht. PATENT CLAIM: Rheostat for medical and similar purposes, in which a sliding contact is moved over a surface made of graphite or similar material, characterized in that the resistance plate (p) consists of emery paper coated with pencil or graphite.
AT32097D 1907-02-02 1907-02-02 Rheostat for medical and similar purposes. AT32097B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT32097T 1907-02-02

Publications (1)

Publication Number Publication Date
AT32097B true AT32097B (en) 1908-03-10

Family

ID=3547037

Family Applications (1)

Application Number Title Priority Date Filing Date
AT32097D AT32097B (en) 1907-02-02 1907-02-02 Rheostat for medical and similar purposes.

Country Status (1)

Country Link
AT (1) AT32097B (en)

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