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
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 229910001651 emery Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Finger-Pressure Massage (AREA)
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)
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) |
-
1907
- 1907-02-02 AT AT32097D patent/AT32097B/en active
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