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
GB11233/39A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of AmericafiledCriticalRCA Corp
Publication of GB538083ApublicationCriticalpatent/GB538083A/en
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS 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
G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
G03B31/02—Associated working of cameras or projectors with sound-recording or sound-reproducing means in which sound track is on a moving-picture film
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Automatic Disk Changers
(AREA)
Abstract
538,083. Feeding sound-record films. RADIO CORPORATION OF AMERICA. April 13, 1939, No. 11233. Convention date, April 23, 1938. [Class 97 (i)] In apparatus for reproducing sound from films, a spring idler device causing the film to form a double curve is provided between a sprocket drawing the film from the sound drum and the take-up spool. As shown, two rollers 24, 25 are spaced equally from a spindle 21 on a support 20. The support may turn on the spindle and has an extension 26 connected to a spring 27 fixed at its end 28. The film passes from the sprocket 16 round both rollers and into the take-up magazine 12.
GB11233/39A1938-04-231939-04-13Improvements in or relating to apparatus for reproducing sound from film records
ExpiredGB538083A
(en)
A machine for winding one or several tapes of screen thickness on a fixed push, specially intended for the manufacture of condensers. (Machine-translation by Google Translate, not legally binding)