GB234130A - Improvements in processes and apparatus for the production of photographic sound records - Google Patents

Improvements in processes and apparatus for the production of photographic sound records

Info

Publication number
GB234130A
GB234130A GB12737/25A GB1273725A GB234130A GB 234130 A GB234130 A GB 234130A GB 12737/25 A GB12737/25 A GB 12737/25A GB 1273725 A GB1273725 A GB 1273725A GB 234130 A GB234130 A GB 234130A
Authority
GB
United Kingdom
Prior art keywords
production
printing
processes
sound
sound records
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
GB12737/25A
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.)
FOREST PHONOFILMS Ltd DE
Original Assignee
FOREST PHONOFILMS Ltd DE
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 FOREST PHONOFILMS Ltd DE filed Critical FOREST PHONOFILMS Ltd DE
Publication of GB234130A publication Critical patent/GB234130A/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
    • G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers

Landscapes

  • Projection-Type Copiers In General (AREA)

Abstract

234,130. De Forest Phonofilms, Ltd., (Assignees of Forest, L. de). May 17, 1924, [Convention date]. Printing-apparatus with continuous movement of negative and printed surface.- In apparatus for the production of photographic sound records, especially combined kinematograph and sound record films, a negative film 5 and a blank positive film 6 move together past a picture printing light 4 and a sound printing light 7 both so mounted as to be displaceable towards or away from the printing apertures.
GB12737/25A 1924-05-17 1925-05-15 Improvements in processes and apparatus for the production of photographic sound records Expired GB234130A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US234130XA 1924-05-17 1924-05-17

Publications (1)

Publication Number Publication Date
GB234130A true GB234130A (en) 1926-07-01

Family

ID=21814951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12737/25A Expired GB234130A (en) 1924-05-17 1925-05-15 Improvements in processes and apparatus for the production of photographic sound records

Country Status (1)

Country Link
GB (1) GB234130A (en)

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