GB709022A - Improvements in or relating to disk shaped carriers for magnetic sound recordings - Google Patents

Improvements in or relating to disk shaped carriers for magnetic sound recordings

Info

Publication number
GB709022A
GB709022A GB1852451A GB1852451A GB709022A GB 709022 A GB709022 A GB 709022A GB 1852451 A GB1852451 A GB 1852451A GB 1852451 A GB1852451 A GB 1852451A GB 709022 A GB709022 A GB 709022A
Authority
GB
United Kingdom
Prior art keywords
record
magnetic
relating
disk shaped
sound recordings
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
GB1852451A
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.)
Zeuthen and Aagaard AS
Original Assignee
Zeuthen and Aagaard AS
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 Zeuthen and Aagaard AS filed Critical Zeuthen and Aagaard AS
Priority to GB1852451A priority Critical patent/GB709022A/en
Priority to DEZ2037A priority patent/DE856235C/en
Publication of GB709022A publication Critical patent/GB709022A/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
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

709,022. Magnetic recording apparatus. ZEUTHEN & AAGAARD AKTIESSELSKAB. Aug 4, 1951, No. 18524/51. Class 40 (2). A magnetic disc record has a groove on one or both sides of the disc for guiding the magnetic lead on the other side of the record. The record . is mounted on an axle 4 carried by a displaceable carriage 5. The groove engages with a fixed roller 2, so that the record is drawn over the magnetic head 7 and driven at constant speed by a roller 1. The record is preferably made of a flexible plastic material.
GB1852451A 1951-08-04 1951-08-04 Improvements in or relating to disk shaped carriers for magnetic sound recordings Expired GB709022A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1852451A GB709022A (en) 1951-08-04 1951-08-04 Improvements in or relating to disk shaped carriers for magnetic sound recordings
DEZ2037A DE856235C (en) 1951-08-04 1951-08-05 Disk-shaped carrier for magnetic sound recordings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1852451A GB709022A (en) 1951-08-04 1951-08-04 Improvements in or relating to disk shaped carriers for magnetic sound recordings

Publications (1)

Publication Number Publication Date
GB709022A true GB709022A (en) 1954-05-12

Family

ID=10113910

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1852451A Expired GB709022A (en) 1951-08-04 1951-08-04 Improvements in or relating to disk shaped carriers for magnetic sound recordings

Country Status (1)

Country Link
GB (1) GB709022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717407A (en) * 1970-03-02 1973-02-20 P Dimitracopoulos Audiovisual slides and data-record cards
US3730618A (en) * 1970-03-02 1973-05-01 P Dimitracopoulos Audio and audiovisual apparatus with pincers-like rotating arm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717407A (en) * 1970-03-02 1973-02-20 P Dimitracopoulos Audiovisual slides and data-record cards
US3730618A (en) * 1970-03-02 1973-05-01 P Dimitracopoulos Audio and audiovisual apparatus with pincers-like rotating arm

Similar Documents

Publication Publication Date Title
GB709022A (en) Improvements in or relating to disk shaped carriers for magnetic sound recordings
GB1355151A (en) Magnetic recording and reproducing apparatus
GB699774A (en) Improvements in or relating to magnetic sound apparatus, particularly for perforatedmagnetic sound films
GB695898A (en) Improvements in or relating to guide systems for magnetic sound-recording and sound-reproducing tapes
GB948362A (en) Apparatus for applying sound recording tapes to film strips
JPS527230A (en) Rapid wind-back recording and reproducing device for tape recorder
GB708570A (en) Improvements in or relating to sound recording apparatus
GB958817A (en) Improvements in or relating to tape recording apparatus
GB683090A (en) A method for the magnetic sound recording and/or sound-reproducing
GB731467A (en) Improvements in or relating to magnetic recording sound unit
GB702340A (en) Improvements in or relating to apparatus for manipulating endless bands
GB811160A (en) Improvements in or relating to sheets for magnetic sound recording
GB866204A (en) Sound recording or reproducing apparatus
GB676041A (en) Improvements in language teaching devices
GB1001452A (en) Improvements in or relating to magnetic tape recording playback or erasing apparatus
GB793521A (en) Tape feeding apparatus for magnetic sound recording and/or reproducing mechanisms
GB736334A (en) Improvements in or relating to electromagnetic sound recording and reproducing devices
GB662462A (en) Improvements in and relating to magnetic sound recording and reproducing apparatus
GB919366A (en) Improvements in and relating to magnetic tape recorders
GB1217806A (en) Endless tape cartridge
GB846460A (en) Improvements in friction drives for magnetic tape recorders
AU208960B2 (en) Mechanism for driving and guiding the recording or reproducing tape, wire orthe like in magnetic sound recording and reproducing apparatus
GB846269A (en) Improvements in driving magnetic tape recorders
GB700548A (en) Mechanism for driving tape- or wire-shaped sound record carriers
CA507952A (en) Drive and control arrangements for magnetic record transducing apparatus