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
GB37929/38A
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AGfiledCriticalZeiss Ikon AG
Publication of GB523286ApublicationCriticalpatent/GB523286A/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
G03B21/00—Projectors or projection-type viewers; Accessories therefor
G03B21/14—Details
G03B21/16—Cooling; Preventing overheating
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Projection Apparatus
(AREA)
Abstract
523,286. Kinematograph projectors. ZEISS IKON AKT.-GES. Dec. 30, 1938, No. 37929. Convention date, Feb. 12. [Class 97 (i)] A driving motor 3 is connected to a projector casing 2 by a flange and carries a compressed air generator 1 and an air moistening device 4; the air may be supplied to the film track &c. The device 4 may be suspended so that it may remain horizontal when the projector is tilted and the air tubes 6 may be flexible, may pivot at one or more points, or may pass through slots in a cover 7.
GB37929/38A1938-02-121938-12-30Improvements in or relating to cooling devices for cinematograph apparatus
ExpiredGB523286A
(en)