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
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.)
Still & Sons Ltd W M
WM Still and Sons Ltd
Original Assignee
Still & Sons Ltd W M
WM Still and Sons 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
Application filed by Still & Sons Ltd W M, WM Still and Sons LtdfiledCriticalStill & Sons Ltd W M
Application grantedgrantedCritical
Publication of GB191410965ApublicationCriticalpatent/GB191410965A/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
Abstract
10,965. Still & Sons, W. M., and Adamson, A. G. May 4. Lighting burners, lighting-holes for. - In an optical lantern for kinematograph purposes, a tube 22 supported on a cooling-jacket 18 carries the oil vaporizer 23 and mixing-tube 24 of the burner, and can be raised during lighting- up. Lighting is effected through holes 27 in an outer tube 21.
GB191410965D1914-05-041914-05-04Improvements in Optical Lanterns for Kinematograph Purposes.
ExpiredGB191410965A
(en)