SE391053B - Forfarande for att framstella en matris avsedd for pregling av spar i folier, varvid matrisen er forsedd med minst en ringformig egg - Google Patents

Forfarande for att framstella en matris avsedd for pregling av spar i folier, varvid matrisen er forsedd med minst en ringformig egg

Info

Publication number
SE391053B
SE391053B SE7402124A SE7402124A SE391053B SE 391053 B SE391053 B SE 391053B SE 7402124 A SE7402124 A SE 7402124A SE 7402124 A SE7402124 A SE 7402124A SE 391053 B SE391053 B SE 391053B
Authority
SE
Sweden
Prior art keywords
matrium
ringed
savings
egg
files
Prior art date
Application number
SE7402124A
Other languages
English (en)
Swedish (sv)
Inventor
W Rohwer
A Wuhle
K Roschmann
Original Assignee
Ted Bildplatten
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
Priority claimed from DE19732308891 external-priority patent/DE2308891C3/de
Application filed by Ted Bildplatten filed Critical Ted Bildplatten
Publication of SE391053B publication Critical patent/SE391053B/xx

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
    • G11B3/44—Styli, e.g. sapphire, diamond
    • G11B3/56—Sharpening
SE7402124A 1973-02-23 1974-02-18 Forfarande for att framstella en matris avsedd for pregling av spar i folier, varvid matrisen er forsedd med minst en ringformig egg SE391053B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732308891 DE2308891C3 (de) 1973-02-23 Verfahren zur Herstellung von Matrizen zum Prägen von Rillen in Folien, insbesondere in Schleiffolien für das Anschleifen von Abtastern für Bildplatten

Publications (1)

Publication Number Publication Date
SE391053B true SE391053B (sv) 1977-01-31

Family

ID=5872792

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7402124A SE391053B (sv) 1973-02-23 1974-02-18 Forfarande for att framstella en matris avsedd for pregling av spar i folier, varvid matrisen er forsedd med minst en ringformig egg

Country Status (10)

Country Link
US (1) US3956075A (xx)
JP (1) JPS49119601A (xx)
AT (1) AT336914B (xx)
BE (1) BE811297A (xx)
CH (1) CH567769A5 (xx)
FR (1) FR2219479B3 (xx)
GB (1) GB1457350A (xx)
IT (1) IT1008289B (xx)
NL (1) NL7401654A (xx)
SE (1) SE391053B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821297C3 (de) * 1978-05-16 1981-09-17 Teldec Telefunken-Decca-Schallplatten Gmbh, 2000 Hamburg Verfahren zur Herstellung eines plattenförmigen Informationsträgers
US4394341A (en) * 1982-02-01 1983-07-19 Rca Corporation Method to center and separate electroformed replicas from a matrix
US4431487A (en) * 1983-06-30 1984-02-14 Rca Corporation Matrixing apparatus and method for use in the manufacture of molded records
US4479853A (en) * 1984-03-29 1984-10-30 Rca Corporation Method for the manufacture of record stampers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE637310C (de) * 1936-10-26 Fedor Geske Verfahren zum Herstellen von Schallplatten
US2092880A (en) * 1933-09-26 1937-09-14 Rca Corp Record pressing matrix
US2067502A (en) * 1934-08-16 1937-01-12 Bell Telephone Labor Inc Art of duplicating phonograph records
US3584094A (en) * 1969-01-08 1971-06-08 Pic Tur Records Inc Method of making picture-type phonograph records
JPS4932124B1 (xx) * 1970-05-25 1974-08-28
US3801476A (en) * 1972-03-01 1974-04-02 Teldec Telefunken Decca Method for improving the centering of stamping matrices

Also Published As

Publication number Publication date
US3956075A (en) 1976-05-11
DE2308891A1 (de) 1974-09-05
CH567769A5 (xx) 1975-10-15
ATA123874A (de) 1976-09-15
IT1008289B (it) 1976-11-10
GB1457350A (en) 1976-12-01
NL7401654A (xx) 1974-08-27
JPS49119601A (xx) 1974-11-15
DE2308891B2 (de) 1975-09-04
FR2219479B3 (xx) 1976-12-03
FR2219479A1 (xx) 1974-09-20
AT336914B (de) 1977-06-10
BE811297A (fr) 1974-06-17

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