DE15020C - Telephone with resonance box to amplify sound transmission - Google Patents
Telephone with resonance box to amplify sound transmissionInfo
- Publication number
- DE15020C DE15020C DENDAT15020D DE15020DA DE15020C DE 15020 C DE15020 C DE 15020C DE NDAT15020 D DENDAT15020 D DE NDAT15020D DE 15020D A DE15020D A DE 15020DA DE 15020 C DE15020 C DE 15020C
- Authority
- DE
- Germany
- Prior art keywords
- telephone
- box
- resonance box
- sound transmission
- amplify sound
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title description 2
- 239000012528 membrane Substances 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims 1
- 238000005352 clarification Methods 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
- H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only for telephonic receivers
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Building Environments (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 21: Elektrische Apparate.CLASS 21: Electrical apparatus.
Patentirt im Deutschen Reiche vom 16. Januar 1881 ab.Patented in the German Empire on January 16, 1881.
Diese Erfindung besteht darin, dafs der zwischen Membran und Magnet eines Telephons befindliche Theil des Gehäuses zu einem dünnwandigen Schallkasten umgestaltet wird, und dafs unterhalb dieses Schallkastens ein Resonanzkasten angebracht wird, welcher denselben mngiebt und einen gewissen Zwischenraum zwischen beiden Theilen läfst. Es wird durch diese Construction eine ganze wesentliche Verstärkung der Tonerzeugung gegenüber der gebräuchlichen massiven Construction des Telephongehäuses erzielt. Auch wird die Uebertragung eine deutlichere und reinere, als bei Telephonen bisher bekannter Ausführung.This invention consists in that between the membrane and the magnet of a telephone located part of the housing is transformed into a thin-walled sound box, and that a resonance box is attached below this sound box, which gives the same and leaves a certain space between the two parts. It will go through this construction represents a very substantial increase in the generation of sound compared to the usual one massive construction of the telephone housing achieved. The transmission also becomes clearer and purer than with Telephones of previously known design.
In beiliegender Zeichnung ist eine Ausführung des Gehäuses dargestellt für ein Telephon mit aufrechtem Hufeisenmagneten. Die Details des Instrumentes sind, weil nebensächlich für die Erfindung, fortgelassen.The accompanying drawing shows an embodiment of the housing for a telephone with upright horseshoe magnet. The details of the instrument are irrelevant for the invention, omitted.
Es ist m die Membran des Instrumentes und A A der aus etwa 4 mm starkem Holz hergestellte Schallkasten unterhalb der Membran. Um den Schallkasten A herum ist der Resonanzkasten B B angebracht und mit kleinen Schalllöchern s s versehen. Durch beide Kastenböden hindurch tritt der Magnet R R in den Raum des Schallkastens A hinein, woselbst in bekannter Weise Polschuhe und Drahtspiralen angebracht sein können.It is m, the membrane of the instrument and the AA made of about 4 mm thick wood sound box below the membrane. The resonance box BB is attached around the sound box A and is provided with small sound holes ss. The magnet RR passes through both box bottoms into the space of the sound box A , where pole pieces and wire spirals can be attached in a known manner.
Statt von unten, kann der Magnet auch von seitwärts in den Resonanzkasten eintreten und dann mit den aufwärts gebogenen Schenkeln in den Raum des Kastens A unter die Membran münden.Instead of coming from below, the magnet can also enter the resonance box from the side and then open with the upwardly bent legs into the space of box A under the membrane.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE22341T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE15020C true DE15020C (en) |
Family
ID=5620913
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT22341D Active DE22341C (en) | Innovation on the telephone protected under No. 15020 | ||
| DENDAT15020D Active DE15020C (en) | Telephone with resonance box to amplify sound transmission |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT22341D Active DE22341C (en) | Innovation on the telephone protected under No. 15020 |
Country Status (1)
| Country | Link |
|---|---|
| DE (2) | DE15020C (en) |
-
0
- DE DENDAT22341D patent/DE22341C/en active Active
- DE DENDAT15020D patent/DE15020C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE22341C (en) |
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