GB466446A - Improvements in or relating to optical sound-reproducing apparatus - Google Patents

Improvements in or relating to optical sound-reproducing apparatus

Info

Publication number
GB466446A
GB466446A GB15109/36A GB1510936A GB466446A GB 466446 A GB466446 A GB 466446A GB 15109/36 A GB15109/36 A GB 15109/36A GB 1510936 A GB1510936 A GB 1510936A GB 466446 A GB466446 A GB 466446A
Authority
GB
United Kingdom
Prior art keywords
sound
record
film
coil
carried
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
GB15109/36A
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.)
Julius Pintsch AG
Original Assignee
Julius Pintsch AG
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 Julius Pintsch AG filed Critical Julius Pintsch AG
Publication of GB466446A publication Critical patent/GB466446A/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
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor

Landscapes

  • Moving Of Heads (AREA)

Abstract

466,446. Feeding and winding sound - record films. PINTSCH AKT.-GES., J. May 28, 1936, No. 15109. Convention date, July 15, 1935. [Class 97 (i)] [Also in Group XXXVIII] An endless sound-record film carrving a number of record tracks is carried in a coil 46 on a spool 45 having flanges 9, 44, is drawn from the interior thereof by a glass drum 3, carried by a shaft 37 having a pulley 38 driven by a belt from a motor 12, and returns to the outside of the coil. The film may have a notch 8 permitting a lever 7, engaging the film edge, to rise and free a pendulum 13 secured to a pivot pin 28 carrying the anchor member 14 of an escapement mechanism. The movement of the member 14 results in alteration of the incidence of the light-beam on the sound tracks.
GB15109/36A 1935-07-15 1936-05-28 Improvements in or relating to optical sound-reproducing apparatus Expired GB466446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE466446X 1935-07-15

Publications (1)

Publication Number Publication Date
GB466446A true GB466446A (en) 1937-05-28

Family

ID=6540537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15109/36A Expired GB466446A (en) 1935-07-15 1936-05-28 Improvements in or relating to optical sound-reproducing apparatus

Country Status (1)

Country Link
GB (1) GB466446A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539521A (en) * 1944-05-19 1951-01-30 Freeman H Owens Projection machine
US2543125A (en) * 1944-05-19 1951-02-27 Freeman H Owens Projection machine film drive and rewinding mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2539521A (en) * 1944-05-19 1951-01-30 Freeman H Owens Projection machine
US2543125A (en) * 1944-05-19 1951-02-27 Freeman H Owens Projection machine film drive and rewinding mechanism

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