GB377659A - Improvements in or relating to the making of combined sound and picture records - Google Patents

Improvements in or relating to the making of combined sound and picture records

Info

Publication number
GB377659A
GB377659A GB2123/31A GB212331A GB377659A GB 377659 A GB377659 A GB 377659A GB 2123/31 A GB2123/31 A GB 2123/31A GB 212331 A GB212331 A GB 212331A GB 377659 A GB377659 A GB 377659A
Authority
GB
United Kingdom
Prior art keywords
record
film
sound
picture
latent
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
GB2123/31A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 to US377659XA priority Critical
Application filed by Kodak Ltd filed Critical Kodak Ltd
Publication of GB377659A publication Critical patent/GB377659A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B31/00Associated working of cameras or projectors with sound-recording or sound-reproducing means

Abstract

377,659. Combined sound recording and kinematograph apparatus; combined sound and picture films. KODAK, Ltd., Kingsway, London.-(Assignees of Jones, L. A. ; Kodak Park, Rochester, New York, U.S.A.) Jan. 22, 1931, No. 2123. Convention date, Feb. 5, 1930. Void [Published under Sect. 91 of the Acts]. [Class 40 (ii).] A photographic sound record is made on a kinematograph film by making a magnetic sound record synchronously with the exposure of the picture film, forming from the magnetic record by an electro-optical copying process a latent photographic record on a margin of the undeveloped picture film, and then transforming the two latent (sound and picture) images on the film into positive silver images by a photographic reversal process. Fig. 1 shows the combination of apparatus for magnetically recording sound on a strip 14, with a kinematograph camera 1, both machines being driven by a single motor 8. The take-up reel 17 for the strip 14 is driven by a friction pulley 16 and belt 15. For translating the record thus made into a latent photographic image on the picture film 9, the apparatus shown in Fig. 2 is used, in which a motor 8<1> drives the magnetic record 14 past electromagnets 19<1> in which current oscillations are generated. By means of an amplifying system 26, to which the magnets are coupled, light from a lamp 27 is thus acoustically modulated, and a record is made on the undeveloped picture film 9. The film is driven past the light slit 28 by the motor 8<1> through belts, pulleys, and a sprocket 23, the gearing being so chosen that the sound record is correctly synchronized with the picture record. The film 9 is finally submitted to a reversal process so as to transform the two latent images into positive silver images.
GB2123/31A 1930-02-05 1931-01-22 Improvements in or relating to the making of combined sound and picture records Expired GB377659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US377659XA true 1930-02-05 1930-02-05

Publications (1)

Publication Number Publication Date
GB377659A true GB377659A (en) 1932-07-28

Family

ID=21896204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2123/31A Expired GB377659A (en) 1930-02-05 1931-01-22 Improvements in or relating to the making of combined sound and picture records

Country Status (1)

Country Link
GB (1) GB377659A (en)

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