DE56648C - Telephone - Google Patents
TelephoneInfo
- Publication number
- DE56648C DE56648C DENDAT56648D DE56648DA DE56648C DE 56648 C DE56648 C DE 56648C DE NDAT56648 D DENDAT56648 D DE NDAT56648D DE 56648D A DE56648D A DE 56648DA DE 56648 C DE56648 C DE 56648C
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- telephone
- magnet
- earpiece
- mouthpiece
- 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 - Lifetime
Links
- 239000012528 membrane Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229920001875 Ebonite Polymers 0.000 description 1
- 230000001427 coherent Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000036633 rest Effects 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 21: Elektrische Apparate.CLASS 21: Electrical apparatus.
L. HÄBERLIN in OSNABRÜCK. Fernsprecher. L. HÄBERLIN in OSNABRÜCK. Telephone.
Patentirt im Deutschen Reiche vom 22. October i8go ab.Patented in the German Empire on October 22nd, 18go.
Von diesem Fernsprecher zeigt Fig. 1 die Vorderansicht, Fig. 2 die Seitenansicht im Durchschnitt, Fig. 3 das Innere des Sprechapparates von oben gesehen, Fig. 4 die Form des Magneten und der Verschlufsblätter.Of this telephone Fig. 1 shows the front view, Fig. 2 shows the side view in section, Fig. 3 shows the interior of the speaking apparatus from above, Fig. 4 shows the shape of the magnet and the leaflets.
Wie ersichtlich, ist die Hörmuschel a mit dem Sprechmundstück b so vereinigt, dafs beide einen festen Körper bilden, und dafs, wenn a beim Gebrauch in entsprechender Lage an das Ohr gehalten wird, b in etwa 3 cm Entfernung vom Munde sich befindet.As can be seen, the earpiece a is united with the speaking mouthpiece b in such a way that both form a solid body, and that when a is held in the appropriate position to the ear during use, b is about 3 cm from the mouth.
Um diese Form zu erzielen, sind die Schenkel des langen permanenten Hufeisenmagneten m, Fig. i, 3 und 4, unterhalb entsprechend gebogen, und sie tragen in bekannter Weise an ihren Polen je einen Kern von weichem Eisen mit der erforderlichen Drahtumwickelung. Diese Eisenkerne sind von einem die Membran und das Mundstück tragenden Gehäuse e umgeben, welches auf dem Magneten befestigt ist.In order to achieve this shape, the legs of the long permanent horseshoe magnet m, Fig. 1, 3 and 4, are correspondingly bent below, and they each carry a core of soft iron with the necessary wire wrapping at their poles in a known manner. These iron cores are surrounded by a housing e which carries the membrane and the mouthpiece and which is attached to the magnet.
Der auf dem Magneten aufliegende Boden dieses Gehäuses ist so weit durchbrochen, dafs nicht nur die Eisenkerne mit den Inductionsrollen frei in den Innenraum hineinragen, sondern so weit, dafs auch noch seitlich bei 2, Fig. 2 und 3, eine Oeffnung in der Richtung zwischen den Magnetschenkeln vorhanden ist.The bottom of this case, which rests on the magnet, is perforated so far that not only do the iron cores with the induction rollers protrude freely into the interior, but so far that also laterally at 2, Fig. 2 and 3, an opening in the same direction is present between the magnetic legs.
An der oberen Krümmung des Magneten ist ein flaches Gehäuse α mit Membran und Hörmuschel befestigt. Der Boden dieses Gehäuses besitzt gleichfalls eine Oeffnung t, Fig. 1 und 2, welche unterhalb der Magnetkrümmung einmündet. A flat housing α with a membrane and earpiece is attached to the upper curve of the magnet. The bottom of this housing also has an opening t, Fig. 1 and 2, which opens below the curvature of the magnet.
Die hiernach noch freibleibenden Schenkel des Magneten sind der Länge nach beiderseits so mit Verschlufsblättern bezw. Streifen η und k von Hartgummi, Fig. 4, abgedeckt, dafs zwischen ihnen ein geschlossener Luftkanal entsteht, welcher nur mit den Lufträumen unterhalb der beiderseitigen Membranen in Verbindung steht und mit diesen einen zusammenhängenden, von der äufseren Luft abgeschlossenen Hohlraum bildet.The legs of the magnet, which are still free, are lengthways on both sides with closure sheets respectively. Strips η and k of hard rubber, Fig. 4, covered so that a closed air duct is created between them, which is only in communication with the air spaces below the membranes on both sides and with these forms a coherent cavity closed off from the outside air.
Wird nun die Membran des Mundstückes b in gewöhnlicher Weise durch einen zweiten Fernsprecher elektromagnetisch erregt, so werden die Schwingungen derselben durch die eingeschlossene Luftsäule in der Richtung der Pfeile (Fig. 2) auf die Membran der Hörmuschel α übertragen, deren Lautwirkung dann zum Hören benutzt wird.If the membrane of the mouthpiece b is now electromagnetically excited in the usual way by a second telephone, the vibrations of the same are transmitted through the enclosed column of air in the direction of the arrows (Fig. 2) to the membrane of the earpiece α , the sound effect of which is then used for listening will.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE56648C true DE56648C (en) |
Family
ID=331074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT56648D Expired - Lifetime DE56648C (en) | Telephone |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE56648C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229171A1 (en) * | 1973-05-11 | 1974-12-06 | Ibm France | Acoustic handset for telephone receiver designed to give voice feed-ba - designed to give voice feed-back with digital systems |
-
0
- DE DENDAT56648D patent/DE56648C/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229171A1 (en) * | 1973-05-11 | 1974-12-06 | Ibm France | Acoustic handset for telephone receiver designed to give voice feed-ba - designed to give voice feed-back with digital systems |
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