DE427916C - Device for making weak noises audible - Google Patents
Device for making weak noises audibleInfo
- Publication number
- DE427916C DE427916C DEE31613D DEE0031613D DE427916C DE 427916 C DE427916 C DE 427916C DE E31613 D DEE31613 D DE E31613D DE E0031613 D DEE0031613 D DE E0031613D DE 427916 C DE427916 C DE 427916C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- furrows
- making weak
- tensile force
- audible
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/02—Stethoscopes
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Closures For Containers (AREA)
Description
Vorrichtung zum Hörbarmachen schwacher Geräusche. Die Erfindung betrifft eine Vorrichtung zum Hörbarmaclnen schwacher Geräusche. Für solche Vorrichtungen ist es bekannt, in einem Hohlgefäß eine Membran anzuordnen, auf die eine Zujkraft, beispielsweise ein. Gewicht, wirkt. Auch sind für akustische Vorrichtungen Membrane mit konzentrischen Ringfurchen bekannt. Bei den bekannten Membranen dieser Art sind diese Furchen z. B. durch Pressen der Membran erzeugt.Device for making weak noises audible. The invention relates to a device for making weak noises audible. For such devices it is known to arrange a membrane in a hollow vessel on which a Zujkraft, for example a. Weight, acts. Also, membranes with concentric annular grooves are known for acoustic devices. In the known membranes of this type, these grooves are z. B. generated by pressing the membrane.
Die Erfindung bezweckt, eine Vorrichtung zum Härbarmachen, schwacher Geräusche in ihrer Empfindlichkeit zu steigern. Dies wird gemäß der Erfindmig dadurch erreicht, daß die Furchen der Membran durch Entfernen von Werkstoffteilen der Membran erzeugt sind und daß die Zugkraft in ihrer Lage zur und ihrer Wirkung auf die Membran einstellbar angeordnet ist.The aim of the invention is to provide a device for making hardenable, weaker To increase the sensitivity of sounds. According to the invention, this is thereby achieved achieved that the furrows of the membrane by removing material parts of the membrane are generated and that the tensile force in their position and their effect on the membrane is arranged adjustable.
Die Zeichnung zeigt den Gegenstand der Erfindung an einem Ausführungsbeispiel. Das zylindiische Gefäß der Vorrichtung besteht aus einem Deckel i, 2 und einem Bodenkörper 3, .1. Diese beiden Teile können mit-' einander in bekannter Weise verschraubt werden. Zwisohen dem Deckel. i, 2 Lind dem Bodenkörper 3, ¢ ist eine mit Furchen 6 versehene Membran 5 eingespannt. Im Gegensatz zu der sonst übliohen Herstellung von Furchen in solchen Membranen sind erfindungsgemäß die Furchen 6 durch Einsstechen, d.. h. durch Entfernen von Werkstoffteilen, z. B. durch Herausschleifen, gebildet, so. daß also die Membran 5 an den Stellen der Furchen 6 geschwächt ist. Der Deckel i, 2 ist in bekannter Weise mit einem zweckmäßig einsehraubbaren Rohransatz 7 zum Anbringen eines Hörschlauches versehen.The drawing shows the subject matter of the invention using an exemplary embodiment. The cylindrical vessel of the device consists of a lid 1, 2 and a bottom body 3, .1. These two parts can be screwed together in a known manner. Between the lid. i, 2 and the bottom body 3, [is] one with furrows 6 Diaphragm 5 clamped. In contrast to the otherwise common production of furrows In such membranes, according to the invention, the furrows 6 are pierced, ie. by removing material parts, e.g. B. by grinding out, formed so. so that the membrane 5 is weakened at the points of the furrows 6. The lid i, 2 is in a known manner with an expediently einsehraubbaren pipe socket 7 for attachment a hearing tube.
Im Hohlraum des Bodenkörpers 3, ¢ ist ein kleiner Pfeiler 8 angebraoht, mit dem durch ein Gelenk 9 ein mit einer Zugkraft, zweckmäßig einem Gewicht 12, versehener Arm io verbunden ist, der bei i i gelenkig an die Mitte der Membran 5 angreift. Gemäß der Erfindung ist die Zugkraft, z. B. das GewiCht 12, in ihrer oder seiner Lage zur und dadurch in der Wirkung auf die Membran 5 verstellbar. Die Einstellung dier Zugkraft, z. B. dies Gewichtes 12, auf eine erforderliche Zugwirkung kann beispielsweise von außen durch eine verschraubbare Öffnung 13 mit Hilfe eines auf das Gewioht 12 wirkenden Schlüssels geschehen.In the cavity of the floor body 3, ¢ a small pillar 8 is bolted, with a joint 9 with a tensile force, expediently a weight 12, provided arm io is connected, which at i i is articulated to the center of the membrane 5 attacks. According to the invention, the tensile force, e.g. B. the weight 12, in their or its position in relation to and thereby its effect on the membrane 5 can be adjusted. The setting dier tensile force, e.g. B. this weight 12, on a required pulling effect can, for example from the outside through a screwable opening 13 with the help of a screw on the thread 12 acting key happen.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE31613D DE427916C (en) | Device for making weak noises audible |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE31613D DE427916C (en) | Device for making weak noises audible |
Publications (1)
Publication Number | Publication Date |
---|---|
DE427916C true DE427916C (en) | 1926-04-19 |
Family
ID=7075178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEE31613D Expired DE427916C (en) | Device for making weak noises audible |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE427916C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1017375B (en) * | 1953-11-16 | 1957-10-10 | Jean Piochet | Listening device for locating liquid drains |
-
0
- DE DEE31613D patent/DE427916C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1017375B (en) * | 1953-11-16 | 1957-10-10 | Jean Piochet | Listening device for locating liquid drains |
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