DE586437C - Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes - Google Patents

Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes

Info

Publication number
DE586437C
DE586437C DET36245D DET0036245D DE586437C DE 586437 C DE586437 C DE 586437C DE T36245 D DET36245 D DE T36245D DE T0036245 D DET0036245 D DE T0036245D DE 586437 C DE586437 C DE 586437C
Authority
DE
Germany
Prior art keywords
camphor
gelatinized
records
substitutes
production
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
DET36245D
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.)
ELECTROMOPHON SCHALLPLATTEN A
Original Assignee
ELECTROMOPHON SCHALLPLATTEN A
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 ELECTROMOPHON SCHALLPLATTEN A filed Critical ELECTROMOPHON SCHALLPLATTEN A
Priority to DET36245D priority Critical patent/DE586437C/en
Application granted granted Critical
Publication of DE586437C publication Critical patent/DE586437C/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
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers

Description

Verfahren zur Herstellung von Schallplatten aus mit Kampfer oder Kampferersatzmitteln gelatinierter Acetylcellulose Die Herstellung von Sprechmaschinenplatten aus mit Kampfer oder Kampferersatzmitteln gelatinierter Acetylcellulose hat nach verschiedener Hinsicht Schwierigkeiten, indem eine genaue Nachbildung der Vertiefungen . derart, - daß, sie dauernd gleichbleiben, nicht ohne weiteres möglich ist. Erst durch die Erkenntnis, daß eine Abhängigkeit besteht zwischen der Behandlung der Platten aus mit Kampfer oder Kampferersatzmitteln gelatinierter Acetylcellulose beim Pressen und der Art, wie diese Platten bei der Gewinnung vorbehandelt wurden, ist es möglich geworden, diese Schwierigkeiten zu überwinden.Process for the production of records from using camphor or camphor substitutes gelatinized acetyl cellulose The manufacture of speaking machine plates from with Camphor or camphor substitute gelatinized acetyl cellulose has according to various Respect difficulties by making an exact replica of the depressions. so, - that it is not possible without further ado that they remain the same all the time. Only through the Realizing that there is a dependency between the treatment of the panels Acetyl cellulose gelatinized with camphor or camphor substitutes during pressing and the way in which these plates were pretreated during extraction, it is possible become to overcome these difficulties.

Die Trocknung der aus mit Kampfer oder Kampferersatzmitteln gelatinierter Aoetylcellulose kann bei verschiedenen Temperaturen erfolgen, und ihre Eigenschaften sind von den Trocknungstemperaturen abhängig. Es wurde nun erkannt, daß, man das. Pressen der Sprechmaschinenplatten in der Weise vornehmen soll, daß Druck und Temperatur in bestimmte Beziehung zu der Trocknungstemperatur des Rohstoff-es gebracht werden, und zwar ist ein Quotient festzustellen, der annähernd konstant bleibt und nur nach Material und sonstigen Bedingungen etwa zwischen ¢o und i2o wechselt. Dieser Quotient entsteht aus dem Produkt der Temperatur und dem Druck, unter dem die Platte gepreß:t wird, dividiert durch die Trocknungstemp eratur.The drying of the gelatinized from with camphor or camphor substitutes Aoetyl cellulose can be made at different temperatures, and their properties depend on the drying temperatures. It was now recognized that, one that. Press the speaking machine plates in such a way that pressure and temperature brought into a certain relationship to the drying temperature of the raw material, namely a quotient can be determined which remains approximately constant and only after Material and other conditions, for example, changes between ¢ o and i2o. This quotient arises from the product of the temperature and the pressure under which the plate is pressed: t divided by the drying temperature.

Die auf solche Weise hergestellten Platten zeichnen sich durch vollen reinen Ton ohne jedes Nebengeräusch aus beim Spielen. Auch die Abnutzung ist eine weit geringere, als sie bei sonstigen ähnlichen Baustoffen für die Platte der Fall ist, weil das Material eine gewisse Elastizität besitzt, die um so besser, hervortritt, je zweckmäßiger der Preßvorgang vor sich geht.The panels produced in this way are characterized by full pure sound without any background noise when playing. Wear and tear is also one far lower than is the case with other similar building materials for the plate is because the material has a certain elasticity, which is all the better, the more expedient the pressing process is going on.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Schallplatten aus mit Kampfer oder Kampferersatzmitteln gelatinierter Aoetylcellulose, dadurch gekennzeichnet, daß Druck und Temperatur beim Pressen derart in Abhängigkeit von der beim Trocknen des Rohstoffes angewandten Temperatur stehen, daß der Quotient aus der Trocknungs.temperatur in das Produkt aus der Preßtemperatur _ und dem Preßdruck nahezu 'konstant bleibt und nur je nach Material oder sonstigen Bedingungen etwa zwischen 40 und i 2o wechselt. PATENT CLAIM: Process for the production of records from Aoetylcellulose gelatinized with camphor or camphor substitutes, characterized in that the pressure and temperature during pressing are dependent on the temperature used during drying of the raw material that the quotient of the drying temperature in the product of the The pressing temperature and the pressing pressure remain almost constant and only change between about 40 and i 2o depending on the material or other conditions.
DET36245D 1929-01-12 1929-01-12 Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes Expired DE586437C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET36245D DE586437C (en) 1929-01-12 1929-01-12 Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET36245D DE586437C (en) 1929-01-12 1929-01-12 Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes

Publications (1)

Publication Number Publication Date
DE586437C true DE586437C (en) 1933-10-21

Family

ID=7559644

Family Applications (1)

Application Number Title Priority Date Filing Date
DET36245D Expired DE586437C (en) 1929-01-12 1929-01-12 Process for the production of records from acetyl cellulose gelatinized with camphor or camphor substitutes

Country Status (1)

Country Link
DE (1) DE586437C (en)

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