GB342755A - Improvements in or relating to a method of and apparatus for making combined sound record and cinematograph films - Google Patents

Improvements in or relating to a method of and apparatus for making combined sound record and cinematograph films

Info

Publication number
GB342755A
GB342755A GB33540/29A GB3354029A GB342755A GB 342755 A GB342755 A GB 342755A GB 33540/29 A GB33540/29 A GB 33540/29A GB 3354029 A GB3354029 A GB 3354029A GB 342755 A GB342755 A GB 342755A
Authority
GB
United Kingdom
Prior art keywords
film
films
track
combined
sound
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
GB33540/29A
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.)
ANDREW LEROY CHIPMAN
Original Assignee
ANDREW LEROY CHIPMAN
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 ANDREW LEROY CHIPMAN filed Critical ANDREW LEROY CHIPMAN
Publication of GB342755A publication Critical patent/GB342755A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62Record carriers characterised by the selection of the material
    • G11B5/633Record carriers characterised by the selection of the material of cinematographic films or slides with integral magnetic track

Landscapes

  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

342,755. Kinematograph films. CHIPMAN, A. Le R., 10, Bridge Street, New York, U.S.A.-(Assignees of Chipman, H. E.; 97, Suffolk Street, Springfield, Massachusetts, and Chipman, H. H. ; 10, Bridge Street, New York, both in U.S.A.) Nov. 4, 1929, No. 33540. Convention date, Nov. 5, 1928. [Class 98 (ii).] A kinematograph film comprises two film layers 1, 2, with magnetic material constituting a sound record track 3 embedded between them, and a coating of cementitious material 5, 6, on either or both the opposed faces of the film layers as shown in Fig. 3. The upper film layer 1 may carry the photographic emulsion. The sound track 3 may be in the form of a ribbon or of magnetic granules. If desired, the lower film 2 may be of narrower width than the upper film 1 so as to extend between the sprocket holes of the combined film. During manufacture of the combined film, the photo-transparent films 1, 2 may be fed from reels 11, 8 over guide rollers 9, 10, 13, 12 as shown in Fig. 4, and coated with cementitious material from containers 16, 14. The sound track may be fed between the two films from another reel when the track is in the form of a ribbon and from a vibrated container 29 when in the form of granules. The container 29 is suspended on a rod 32 and vibrated from an electrically-operated arm 34. A magnet 35 may be arranged under the container 29 in order to obtain a uniform flow of magnetic material on to the film. The films are fed forwardly by means of sprocket-wheels 21, 25 and pressure rollers 22, 26, and between pairs of rollers 19, 20, 23, 24. The combined film is wound on to a drying-drum which is given both a rotary and translatory motion so as to prevent overlapping of the film. If desired, a number of sound tracks may be mounted between a pair of wide films, and the finished structure is cut so as to provide a number of combined films of the required widths. Each film may be provided with a single sound track of granular form, or with two ribbon tracks disposed at opposite sides of the film.
GB33540/29A 1928-11-05 1929-11-04 Improvements in or relating to a method of and apparatus for making combined sound record and cinematograph films Expired GB342755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US342755XA 1928-11-05 1928-11-05

Publications (1)

Publication Number Publication Date
GB342755A true GB342755A (en) 1931-02-04

Family

ID=21875377

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33540/29A Expired GB342755A (en) 1928-11-05 1929-11-04 Improvements in or relating to a method of and apparatus for making combined sound record and cinematograph films

Country Status (1)

Country Link
GB (1) GB342755A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967726C (en) * 1948-10-02 1957-12-05 Klangfilm Gmbh Process for the production of film tapes for image and magnetic sound recordings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967726C (en) * 1948-10-02 1957-12-05 Klangfilm Gmbh Process for the production of film tapes for image and magnetic sound recordings

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