DE873151C - Device for recording and / or reproducing magnetic sound recordings - Google Patents

Device for recording and / or reproducing magnetic sound recordings

Info

Publication number
DE873151C
DE873151C DEV74A DEV0000074A DE873151C DE 873151 C DE873151 C DE 873151C DE V74 A DEV74 A DE V74A DE V0000074 A DEV0000074 A DE V0000074A DE 873151 C DE873151 C DE 873151C
Authority
DE
Germany
Prior art keywords
sound
wire
recording
different
roll
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
Application number
DEV74A
Other languages
German (de)
Inventor
Eberhard Vollmer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEV74A priority Critical patent/DE873151C/en
Application granted granted Critical
Publication of DE873151C publication Critical patent/DE873151C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Transmission Devices (AREA)

Description

Einrichtung zum Aufsprechen und/oder Wiedergeben magnetischer Schallaufzeichnungen Die Erfindung betrifft eine Einrichtung zum Rufsprechen und/oder Wiedergeben magnetischer Schallaufzeichnungen. Sie besteht aus einer Auf-und Abwickelvorrichtung des Tonträgers. einer den Gleichlauf des Tonträgers bestimmenden Tonrolle und mehreren Magnetköpfen zum Rufsprechen, Wiedergeben und Löschen der magnetischen Aufzeichnungen.Device for recording and / or reproducing magnetic sound recordings The invention relates to a device for speaking and / or reproducing magnetic Sound recordings. It consists of an unwinding and winding device for the sound carrier. a sound roll, which determines the synchronization of the sound carrier, and several magnetic heads for speaking, playing back and deleting magnetic recordings.

Um diese Vorrichtung wahlweise für Kunststoffstahlband und Draht des Schallträgers verwenden zu können, wird erfindungsgemäß vorgeschlagen, die Spaltbreiteneinstellung der Magnetköpfe veränderbar zu gestalten, um sie den verschiedenen Bandqualitäten ein und desselben Tonträgertyps, verschiedenen Schallträgern (Stahlband, Draht) und verschiedenen Bandgeschwindigkeiten anzupassen. Bei der Verwendung von Draht äls Schallträger erhalten der oder die ?Magnetköpfe eine für den Draht notwendige Führungsrille, die bei Verwendung von Bandmaterial als Schallträger nicht hinderlich ist. Zum Antrieb des Bandtransportes wird aus fertigungstechnischen Gründen ein zweipoliger Induktionsmotor vorgeschlagen.To use this device optionally for plastic steel band and wire des To be able to use the sound carrier, it is proposed according to the invention to adjust the gap width of the magnetic heads can be changed to suit the different tape qualities one and the same type of sound carrier, different sound carriers (steel tape, wire) and to adapt to different belt speeds. When using wire As a sound carrier, the magnetic head or heads receive what is necessary for the wire Guide groove, which is not a hindrance when using tape material as a sound carrier is. For manufacturing reasons, a two pole induction motor proposed.

Um das Laufwerk der erfindungsgemäßen Einrichtung an die verschiedenen Geschwindigkeiten der Schallträger anzupassen, wird vorgeschlagen, den Antrieb der Wickelvorrichtung und/oder den der Tonrolle mit einem Stufengetriebe zu versehen, das es ermöglicht, die jeweils geforderte Bandgeschwindigkeit einzustellen. Die Anpassung an die geforderte Bandgeschwindigkeit kann auch durch eine verstellbare Kupplung erfolgen. Eine besondere Ausführungsform sieht eine Verbindung von Getriebe und Kupplung Tor.To the drive of the device according to the invention to the various To adjust the speeds of the sound carrier, it is proposed to drive the To provide the winding device and / or that of the tape roll with a step gear, which makes it possible to set the required belt speed in each case. the Adjustment to the required belt speed can also be achieved by means of an adjustable Coupling done. A special Embodiment sees a connection of gearbox and clutch gate.

Da die Tonrolle einschließlich der gegen diese drückende Gegenrolle für einzelne Schallträger, wie z. B. Draht, nicht benötigt wird, wird erfindungsgemäß diese Tonrolle so angeordnet, daß sie entweder bequem vom Schallträger umgangen werden kann oder aber sie wird ausschwenkbar angeordnet.Since the clay roller including the counter-roller pressing against it for individual sound carriers, such as B. wire, is not required, is according to the invention this sound roll arranged so that they either bypassed comfortably by the sound carrier can be or it is arranged pivotable.

Bei Verwendung von Stahldraht als Schallträger wird ferner eine Wippe in Nähe der Wickeleinrichtung vorgesehen, die das Aufspulen des Drahtes auf den Wickelspulen regelt. Der Antrieb der beiden Wippen erfolgt in Abhängigkeit der Wickelachse, beispielsweise durch einen auf der Wickelachse angeordneten Führungskörper, der die Wippe in die erforderliche Bewegung versetzt. ,If steel wire is used as a sound carrier, a rocker is also required provided in the vicinity of the winding device, the winding of the wire on the Winding bobbins regulates. The two rockers are driven depending on the winding axis, for example by a guide body arranged on the winding axis, the the rocker set in the required movement. ,

Claims (3)

PATENTANSPRÜCHE: i. Einrichtung zum Aufsprechen und/oder Wiedergeben magnetischer Schallaufzeichnungen, bestehend aus einer wahlweise für Künststof'fstahlband und Draht als Schallträger verwendbaren Auf- und Abwickeleinrichtung einer den Gleichlauf des Tonträgers bestimmenden Tonrolle und mehreren Magnetköpfen zum Aufsprechen, Wiedergeben und Löschen der magnetischen Aufzeichnungen, gekennzeichnet durch eine veränderliche Spaltbreiteneinstellung der Magnetköpfe zur Anpassung an verschiedene Bandqualitäten ein und desselben Bandträgertyps, zur Anpassung an verschiedene Schallträger (Stahlband, Draht) und an verschiedene Bandgeschwindigkeiten. PATENT CLAIMS: i. Device for recording and / or playing back magnetic sound recordings, consisting of one optionally for plastic steel tape and wire as a sound carrier usable winding and unwinding device a synchronism the sound carrier determining the sound roll and several magnetic heads for recording, Playback and deletion of magnetic recordings, indicated by a Variable gap width adjustment of the magnetic heads to adapt to different ones Tape qualities of one and the same tape carrier type, for adaptation to different sound carriers (Steel belt, wire) and at different belt speeds. 2. Einrichtung nach Anspruch i, gekennzeichnet durch die Verwendung eines zweipoligen Induktionsmotors als Antrieb der Wickelvorrichtung. 2. Set up according to Claim i, characterized by the use of a two-pole induction motor as a drive for the winding device. 3. Einrichtung nach Anspruch i oder 2, dadurch gekennzeichnet, daß die Tonrolle der Antriebsvorrichtung bei Verwendung von Stahldraht als Schallträger abschaltbar gestaltet ist. q.. Einrichtung nach mindestens einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Antrieb der Wickelvorrichtung und/oder der Tonrolle zwecks Anpassung an die für die verschiedenen Schallträger und der zu übertragenden Frequenzen verlangten Ablaufgeschwindigkeiten über ein gegebenenfalls veränderbares Stufengetriebe erfolgt. Angezogene Druckschriften: Deutsche Patentschrift Nr. 515:255; USA.-Patentschrift Nr. 2,484 097.3. Device according to claim i or 2, characterized characterized in that the sound roll of the drive device when using steel wire is designed as a sound carrier can be switched off. q .. establishment after at least one of the preceding claims, characterized in that the drive of the winding device and / or the sound roll for the purpose of adaptation to the different sound carriers and the frequencies to be transmitted optionally changeable multi-step transmission takes place. Referred publications: German Patent No. 515: 255; U.S. Patent No. 2,484,097.
DEV74A 1949-10-28 1949-10-28 Device for recording and / or reproducing magnetic sound recordings Expired DE873151C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV74A DE873151C (en) 1949-10-28 1949-10-28 Device for recording and / or reproducing magnetic sound recordings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV74A DE873151C (en) 1949-10-28 1949-10-28 Device for recording and / or reproducing magnetic sound recordings

Publications (1)

Publication Number Publication Date
DE873151C true DE873151C (en) 1953-04-13

Family

ID=7568906

Family Applications (1)

Application Number Title Priority Date Filing Date
DEV74A Expired DE873151C (en) 1949-10-28 1949-10-28 Device for recording and / or reproducing magnetic sound recordings

Country Status (1)

Country Link
DE (1) DE873151C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042914B (en) * 1954-07-21 1958-11-06 Loewe Opta Ag A drive device for tapes consists of a drive shaft and a tape roll driven by this via a step gear

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE515255C (en) * 1928-10-20 1930-12-29 Telegraphie Patent Syndikat G Device for the simultaneous production of several steel wire or steel tape copies after a magnetic sound recording
US2484097A (en) * 1944-10-21 1949-10-11 Keller Ernst Magnetic transducer with wearresistant guide surfaces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE515255C (en) * 1928-10-20 1930-12-29 Telegraphie Patent Syndikat G Device for the simultaneous production of several steel wire or steel tape copies after a magnetic sound recording
US2484097A (en) * 1944-10-21 1949-10-11 Keller Ernst Magnetic transducer with wearresistant guide surfaces

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042914B (en) * 1954-07-21 1958-11-06 Loewe Opta Ag A drive device for tapes consists of a drive shaft and a tape roll driven by this via a step gear

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