DE582383C - Disconnection device for electromagnetic speaking machines with magnetizable, rewindable, wire or tape-shaped phonetic transcription carrier according to the Poulsen method - Google Patents

Disconnection device for electromagnetic speaking machines with magnetizable, rewindable, wire or tape-shaped phonetic transcription carrier according to the Poulsen method

Info

Publication number
DE582383C
DE582383C DEE40605D DEE0040605D DE582383C DE 582383 C DE582383 C DE 582383C DE E40605 D DEE40605 D DE E40605D DE E0040605 D DEE0040605 D DE E0040605D DE 582383 C DE582383 C DE 582383C
Authority
DE
Germany
Prior art keywords
wire
poulsen
shaped
electromagnetic
rewindable
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
DEE40605D
Other languages
German (de)
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.)
ECHOPHON MASCHINEN AKT GES
Original Assignee
ECHOPHON MASCHINEN AKT GES
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 ECHOPHON MASCHINEN AKT GES filed Critical ECHOPHON MASCHINEN AKT GES
Priority to DEE40605D priority Critical patent/DE582383C/en
Application granted granted Critical
Publication of DE582383C publication Critical patent/DE582383C/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
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/22—Stopping means

Landscapes

  • Relay Circuits (AREA)

Description

Ausschaltvorrichtung für elektromagnetische Sprechmaschinen mit nach dem Poulsen-Verfahren magnetisierbarem, umspulbarem, draht- oder bandförmigem Lautachriftträger Bei den bisher bekannten, mit Stahldraht nach dem Poulsen-Verfahren arbeitenden elektromagnetischen Sprechmaschinen findet das Ausschalten nach Ablauf des Drahtes dadurch statt, daß der umzuspulende Draht in Abhängigkeit von seinem Wicklungszustand über ein Getriebe einen Hebel steuert, der seinerseits einen Kontakt zum Ausschalten des Antriebsmotors betätigt. Durch das Zusammenwirken von Draht und Hebelvorrichtung ist naturgemäß für den Draht eine besondere Einstellung nötig, was für die Praxis einen Spulenbehälter zur technischen Forderung macht. Die mit einem solchen Spulenbehälter ausgerüstete elektromagnetisch arbeitende Sprechmaschine wird aber besonders kostspielig und verlangt außerdem jeweils eine besondere Einstellung des Hebels, da der Draht sich nicht für jede Maschine in unbedingt gleicher Länge herstellen läßt. Um nun den Abschaltmechanismus von jeder mechanischen Zusatzvorrichtung unabhängig zu machen, soll erfindungsgemäß der Draht an seinen beiden Enden durch irgendein Verfahren an seiner Oberfläche elektrisch weniger leitend gemacht werden, sei es, daß er einen Lacküherzug erhält, sei es, daß durch ein besonderes, nicht zum Gegenstand der Erfindung gehörendes Verfahren die Oberflächenbeschaff enheitdes Drahtes wesentlich geändert wird, z. B. durch Oberflächenoxydation. Es ist zwar bereits zum Zwecke der Steuerung einer Schreibmaschine nach Maßgabe einer auf photographischem Wege und nach dem Amplitudenverfahren hergestellten Tonaufzeichnung vorgeschlagen worden, auf photomechanischem Wege die Tonaufzeichnung auf .ein mit metallischer Schicht bedecktes Band zu kopieren, auf dem alsdann leitende und nicht leitende Teile durch die wellenförmige Grenzlinie der Tonaufzeichnung getrennt sind, und dieses Band zur Steuerung von Relais zu benutzen, die wechselweise die einzelnen Tasten der Schreibmaschine betätigen. Dieses Band dient mithin lediglich als Steuerband, jedoch nicht zur Tonwiedergabe. Beim Erfindungsgegenstand löst dagegen das Metallband oder der Metalldraht gleichzeitig zwei verschiedene Aufgaben, außer als Magnetogrammträger dient der metallische Draht oder das metallische Band selbst als Kontaktglied zur Steuerung des Motorstromkreises und trägt nur an den Enden Isolierungen zum Aus- oder Umschalten des Antriebsmotors.Switch-off device for electromagnetic speaking machines with after the Poulsen process magnetizable, rewindable, wire or ribbon-shaped phonetic carrier In the previously known, working with steel wire according to the Poulsen method Electromagnetic speaking machines turn off after the wire runs out instead that the wire to be rewound as a function of its winding state A lever controls a gearbox, which in turn has a switch-off contact of the drive motor operated. Through the interaction of wire and lever device Naturally, a special setting is necessary for the wire, what is necessary in practice makes a bobbin case a technical requirement. The one with such a bobbin case Equipped electromagnetically working speaking machine is particularly expensive and also requires a special setting of the lever, as the wire cannot necessarily be produced in the same length for every machine. To now make the disconnection mechanism independent of any additional mechanical device, according to the invention, the wire is to be carried out at both ends by some method be made electrically less conductive on its surface, be it that it has a Lacküherzug receives, be it that by a special, not the subject of the invention associated process significantly changed the surface quality of the wire will, e.g. B. by surface oxidation. Although it is already for control purposes a typewriter according to a photographic way and according to the Amplitude-based sound recording has been proposed on photomechanical Ways to copy the sound recording onto a tape covered with a metallic layer, on which then conductive and non-conductive parts through the undulating boundary line separate the sound recording and use this tape to control relays, who alternately press the individual keys of the typewriter. This tape therefore only serves as a control band, but not for sound reproduction. With the subject matter of the invention on the other hand, the metal band or metal wire releases two different ones at the same time Tasks, except as a magnetogram carrier, the metallic wire or the metallic one serves Band itself as a contact member to control the motor circuit and only carries on the ends of insulation for switching the drive motor off or over.

Zweckmäßig ordnet man innerhalb des Sprechkopfes zwei Schleifkontakte an, die mit dem den Motorstromkreis steuernden Relais elektrisch so verbunden sind, daß dieses Relais bei Kontaktunterbrechung abschaltet und die Maschine zum Stillstand bringt. It is useful to arrange two sliding contacts within the speaking head, which are electrically connected to the relay controlling the motor circuit in such a way that this relay switches off when the contact is interrupted and the machine comes to a standstill.

Claims (1)

PATENTANSPRUCH: Ausschaltvorrichtung fürelektromagnetische Sprechmaschinen mit nach dem Poulsen-Verfa:hren magnetisierbarem, umspulbarem, draht- oder bandförmigem Lautschriftträger, dadurch gekennzeichnet, daß der Stromkreis des den Antriebsmotor steuernden Relais durch den elektrisch leitenden Lautschriftträger mittels zweier Schleifkontakte geschlossen wird und daß die Oberfläche des Lautschriftträgers an den Enden weniger leitend oder völlig isolierend gemacht ist, so daß der Antriebsmotor stillgesetzt wird, wenn die Isolijerstellen des Lautschriftträgers den Relaisstromkreis unterbrechen.PATENT CLAIM: Switch-off device for electromagnetic speaking machines with magnetisable, rewindable, wire-shaped or ribbon-shaped ones according to the Poulsen method Phonetic carrier, characterized in that the circuit of the drive motor controlling relay through the electrically conductive phonetic carrier by means of two Sliding contacts is closed and that the surface of the phonetic carrier the ends is made less conductive or completely insulating, so that the drive motor is stopped when the Isolijerstellen the phonetic carrier the relay circuit interrupt.
DEE40605D 1931-02-05 1931-02-05 Disconnection device for electromagnetic speaking machines with magnetizable, rewindable, wire or tape-shaped phonetic transcription carrier according to the Poulsen method Expired DE582383C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE40605D DE582383C (en) 1931-02-05 1931-02-05 Disconnection device for electromagnetic speaking machines with magnetizable, rewindable, wire or tape-shaped phonetic transcription carrier according to the Poulsen method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE40605D DE582383C (en) 1931-02-05 1931-02-05 Disconnection device for electromagnetic speaking machines with magnetizable, rewindable, wire or tape-shaped phonetic transcription carrier according to the Poulsen method

Publications (1)

Publication Number Publication Date
DE582383C true DE582383C (en) 1933-08-14

Family

ID=7078892

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE40605D Expired DE582383C (en) 1931-02-05 1931-02-05 Disconnection device for electromagnetic speaking machines with magnetizable, rewindable, wire or tape-shaped phonetic transcription carrier according to the Poulsen method

Country Status (1)

Country Link
DE (1) DE582383C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE863715C (en) * 1949-08-04 1953-01-19 Schaub Appbau Ges M B H G Device for stopping magnetic sound devices
US2631855A (en) * 1947-09-27 1953-03-17 Brush Dev Co Magnetic recording and reproducing
US2633503A (en) * 1949-01-12 1953-03-31 Armour Res Found Automatic stop arrangement for magnetic recorders
DE976753C (en) * 1951-02-17 1964-04-16 Robert Bosch Elektronik Ges Mi Electric locking device for magnetic recorders

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631855A (en) * 1947-09-27 1953-03-17 Brush Dev Co Magnetic recording and reproducing
US2633503A (en) * 1949-01-12 1953-03-31 Armour Res Found Automatic stop arrangement for magnetic recorders
DE863715C (en) * 1949-08-04 1953-01-19 Schaub Appbau Ges M B H G Device for stopping magnetic sound devices
DE976753C (en) * 1951-02-17 1964-04-16 Robert Bosch Elektronik Ges Mi Electric locking device for magnetic recorders

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