DE287865C - Telephone playback device - Google Patents
Telephone playback deviceInfo
- Publication number
- DE287865C DE287865C DE1912287865D DE287865DA DE287865C DE 287865 C DE287865 C DE 287865C DE 1912287865 D DE1912287865 D DE 1912287865D DE 287865D A DE287865D A DE 287865DA DE 287865 C DE287865 C DE 287865C
- Authority
- DE
- Germany
- Prior art keywords
- telephone
- playback device
- electromagnet
- telephone playback
- slots
- 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
- 239000000725 suspension Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass 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
- H04R1/42—Combinations of transducers with fluid-pressure or other non-electrical amplifying means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Telephone Set Structure (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Electromagnets (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der Erfindung ist ein telephonischer Wiedergabeapparat, durch welchen Luft aus einem Druckbehälter oder durch Ventilatoren u. dgl. getrieben wird, und in dem sich ein Gitter befindet, dessen Öffnung von einem Elektromagneten, welcher mit Telephonstrom u. dgl. gespeist wird, geregelt wird. Auf der Zeichnung ist ein solcher Apparat dargestellt, und zwar zeigt Fig. ι schematischThe invention relates to a telephone playback apparatus through which Air is driven from a pressure vessel or by fans and the like, and in which has a grid, the opening of which is controlled by an electromagnet, which is operated by a telephone current and the like. Is fed, is regulated. In the drawing, such an apparatus is shown, namely Fig. Ι shows schematically
ίο die Anordnung, während Fig. 2 und 3 Einzelheiten erkennen lassen. Die Dose D besitzt die Schallöffnung B und die Eintrittsöffnung C. In der Mitte befindet sich eine Membrane F mit Längsschlitzen s, die in Fig. 1 nur im Schnitt erkenntlich sind, während sie in Fig. 3 in vergrößertem Maßstab gezeichnet sind. Über der Membranscheibe F, die aus Messing o. dgl. bestehen kann, befindet sich das Plättchen m mit den Schlitzen s', die den Schlitzen s entsprechen. Dieses Plättchen ist in Schienen beweglich und wird durch die Einstellfedern q und ν in Schwebe gehalten. Auf den Plättchen ist ein Kniestück k befestigt, welches in dem Anker α endigt. Dieser Anker befindet sich gegenüber dem Elektromagneten I. Seine Entfernung zu dem Anker wird durch die Mikrometerschraube r geregelt.ίο the arrangement, while Fig. 2 and 3 reveal details. The box D has the sound opening B and the inlet opening C. In the middle there is a membrane F with longitudinal slits s, which can only be seen in section in FIG. 1, while they are drawn in FIG. 3 on an enlarged scale. Above the membrane disk F, which can be made of brass or the like, there is the plate m with the slots s' which correspond to the slots s. This plate can be moved in rails and is held in suspension by the adjustment springs q and ν. An elbow k , which ends in the anchor α , is attached to the plate. This armature is located opposite the electromagnet I. Its distance from the armature is regulated by the micrometer screw r .
Die Einrichtung der Membrane mit den Schlitzen ist in Fig. 2 besonders gezeichnet, während die Schlitze selbst in Fig. 3 in vergrößertem Maßstab teilweise im Schnitt, teilweise in schaubildlicher Darstellung erkenntlich sind.The arrangement of the membrane with the slots is particularly drawn in Fig. 2, while the slots themselves in Fig. 3 on an enlarged scale partly in section, partly can be seen in a graphical representation.
Die Wirkungsweise der Vorrichtung gestaltet sich wie folgt:The device works as follows:
Wenn telephonische und dergleichen Ströme durch den Elektromagneten I gesandt werden, und der Apparat empfindlich eingestellt ist, so gibt die durchtretende Luft unter dem Einfluß der Veränderung der Gitteröffnungen die Töne, die den Strömen entsprechen, wieder. Ein besonderer Vorzug der Einrichtung ist nicht nur, daß sie sehr laut tönt, sondern daß sie in vollkommener Weise die Schwingungen namentlich musikalischer Töne wieder- 4S gibt.If telephone and similar currents are sent through the electromagnet I , and the apparatus is set to be sensitive, the air passing through, under the influence of the change in the grille openings, reproduces the tones which correspond to the currents. A particular advantage of the device is not only that it sounds very loud, but that they re-name the vibrations of musical sounds in a perfect way four S's.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE287865T | 1912-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE287865C true DE287865C (en) | 1915-10-06 |
Family
ID=6059598
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1912287865D Expired DE287865C (en) | 1912-04-24 | 1912-04-24 | Telephone playback device |
| DE1914288502D Expired DE288502C (en) | 1912-04-24 | 1914-07-26 | Relay for amplifying sound vibrations using compressed air |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1914288502D Expired DE288502C (en) | 1912-04-24 | 1914-07-26 | Relay for amplifying sound vibrations using compressed air |
Country Status (4)
| Country | Link |
|---|---|
| DE (2) | DE287865C (en) |
| FR (1) | FR456985A (en) |
| GB (2) | GB191309644A (en) |
| NL (1) | NL1734C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2967094B2 (en) * | 1995-11-02 | 1999-10-25 | 工業技術院長 | Aluminum nitride sintered body and method for producing aluminum nitride powder |
-
1912
- 1912-04-24 DE DE1912287865D patent/DE287865C/en not_active Expired
-
1913
- 1913-04-23 FR FR456985A patent/FR456985A/en not_active Expired
- 1913-04-24 GB GB191309644D patent/GB191309644A/en not_active Expired
- 1913-04-24 NL NL2523A patent/NL1734C/en active
-
1914
- 1914-07-26 DE DE1914288502D patent/DE288502C/en not_active Expired
-
1915
- 1915-07-22 GB GB191510669D patent/GB191510669A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB191510669A (en) | 1921-07-11 |
| GB191309644A (en) | 1913-07-24 |
| FR456985A (en) | 1913-09-09 |
| DE288502C (en) | 1915-11-03 |
| NL1734C (en) | 1916-12-01 |
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