GB449600A - Improvements relating to sound film recording or reproducing apparatus - Google Patents

Improvements relating to sound film recording or reproducing apparatus

Info

Publication number
GB449600A
GB449600A GB392436A GB392436A GB449600A GB 449600 A GB449600 A GB 449600A GB 392436 A GB392436 A GB 392436A GB 392436 A GB392436 A GB 392436A GB 449600 A GB449600 A GB 449600A
Authority
GB
United Kingdom
Prior art keywords
sound
film
gate
reproducing apparatus
pulley
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
GB392436A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB392436A priority Critical patent/GB449600A/en
Publication of GB449600A publication Critical patent/GB449600A/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

Abstract

449,600. Sound - film feeding and guiding devices. FISHER, D. P., 22, Wigan Street, Wellington, New Zealand. Dec. 28, 1934, No. 3924/36. Divided out of 449,547. [Class 40 (ii)] In sound - film recording or reproducing apparatus, the film, after passing through the sound-gate 5 and before reaching a take-up sprocket 6, passes over a jockey pulley 12, which is mounted by means of a spring 13 on a pendulum 14 which is free to swing about a pivot 15. By this means, fluctuations in the speed of the film due to irregularities in the sprocket &c. are prevented from affecting the part of the film near the sound-gate. The pulley 12 consists of two independent rollers, spaced apart as shown in Fig. 4. A guide roller 7 is located between the sound-gate and the pulley 12. Means for ensuring uniform movement of the film before it reaches the sound-gate are provided, as described in Specification 449,547.
GB392436A 1934-12-28 1934-12-28 Improvements relating to sound film recording or reproducing apparatus Expired GB449600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB392436A GB449600A (en) 1934-12-28 1934-12-28 Improvements relating to sound film recording or reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB392436A GB449600A (en) 1934-12-28 1934-12-28 Improvements relating to sound film recording or reproducing apparatus

Publications (1)

Publication Number Publication Date
GB449600A true GB449600A (en) 1936-06-29

Family

ID=9767461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB392436A Expired GB449600A (en) 1934-12-28 1934-12-28 Improvements relating to sound film recording or reproducing apparatus

Country Status (1)

Country Link
GB (1) GB449600A (en)

Similar Documents

Publication Publication Date Title
GB449600A (en) Improvements relating to sound film recording or reproducing apparatus
GB470672A (en) Improvements relating to mechanism for feeding and winding films
GB370001A (en) Improvements in means for maintaining the constant and uniform speed of a film or like record bearing medium in sound recording and reproducing apparatus
CH305435A (en) A method for erasing colored marks on recording material sensitized with an adsorbent substance.
FR828639A (en) Device for guiding and driving sono-visual or sound films, comprising a film tensioning roller
FR742354A (en) IMPROVEMENT FOR SPEED CHANGES USED ON BICYCLETS AND MOPEDS, BY ADAPTING AN OSCILLATING SYSTEM CARRIER
GB449547A (en) Improvements in and relating to sound heads for reproducing sound from sound films
US2107743A (en) Sound reproducing and recording mechanism for the films of motion picture projectors
SU40756A1 (en) Device for stringing tobacco leaves
GB368845A (en) Improvements in or relating to apparatus for use in connection with recording sound upon film
GB447065A (en) Improvements in sound film driving apparatus
US2098367A (en) Moving picture film printing machine
FR833158A (en) Device for keeping the speed of the film uniform on sound drums of sound film apparatus, rotated by the film
FR749557A (en) Device for guiding and tensioning cables on hoists, winches, etc.
GB344784A (en) Improvements in or relating to sound gates for talking film apparatus
GB346762A (en) Improvements in or connected with sound reproducing apparatus
GB457353A (en) Improvements in means for controlling the film motion in sound recording or reproducing apparatus
GB819768A (en) Cinematographic film holder
GB719704A (en) Improvements in or relating to kinematograph intermittent film feed mechanism
FR736574A (en) Device for phonographic recording on smooth discs by means of any speaking machines
FR787440A (en) Device for electro-magnetic sound recording using the poulsen process
GB460520A (en) Improvements in or relating to devices for recording on or reproducing from sound films
GB372508A (en) Process and apparatus for the development of light sensitive paper
GB382357A (en) Improvements in devices for maintaining constant the speed of movement of a sound film
FR736425A (en) Device for running and tensioning the film between the projection window and the magazine or rewinder, in a sound projection device