GB475513A - Improvements in and relating to cinematograph apparatus - Google Patents

Improvements in and relating to cinematograph apparatus

Info

Publication number
GB475513A
GB475513A GB1432436A GB1432436A GB475513A GB 475513 A GB475513 A GB 475513A GB 1432436 A GB1432436 A GB 1432436A GB 1432436 A GB1432436 A GB 1432436A GB 475513 A GB475513 A GB 475513A
Authority
GB
United Kingdom
Prior art keywords
motor
circuit
link
relating
switch
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
GB1432436A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB1432436A priority Critical patent/GB475513A/en
Publication of GB475513A publication Critical patent/GB475513A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • 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
    • G03B19/00—Cameras
    • G03B19/18—Motion-picture cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

475,513. Kinematograph projectors. BRITISH THOMSON-HOUSTON CO., Ltd., and BOWEN, A. May 20, 1936, No. 14324. [Class 97 (i)] A switch 7, held closed by a fusible link 9 against the action of a spring 8, is provided in the circuit of the driving-motor 3, in series with the coil 2 of an electromagnetic switch in the circuit of the projector lamp 1 ; ignition of the link breaks both the motor and lamp circuits. The motor circuit may also include push-button switches 5, 6 and the solenoid of electrical locking means for the spool box. The link 9 may be a piece of film stock.
GB1432436A 1936-05-20 1936-05-20 Improvements in and relating to cinematograph apparatus Expired GB475513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1432436A GB475513A (en) 1936-05-20 1936-05-20 Improvements in and relating to cinematograph apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1432436A GB475513A (en) 1936-05-20 1936-05-20 Improvements in and relating to cinematograph apparatus

Publications (1)

Publication Number Publication Date
GB475513A true GB475513A (en) 1937-11-22

Family

ID=10039135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1432436A Expired GB475513A (en) 1936-05-20 1936-05-20 Improvements in and relating to cinematograph apparatus

Country Status (1)

Country Link
GB (1) GB475513A (en)

Similar Documents

Publication Publication Date Title
GB475513A (en) Improvements in and relating to cinematograph apparatus
GB536695A (en) Improvements relating to electromagnetic relays
US1767582A (en) Apparatus for the control of electric lamps
US2136863A (en) Transformer
GB336114A (en) Improvements in fire preventing means for cinematograph projection apparatus combined with means for automatically switching on theatre lights
GB497653A (en) Improvements in and relating to transformer voltage regulators
GB501182A (en) Improvements in or relating to regulable reactance transformers
GB512735A (en) Improvements in and relating to electromagnetically-operated switchgear
GB400985A (en) Improvements in electrical measuring or relay apparatus, particularly for high potential circuits
GB475248A (en) Electrical alarm system suitable for boilers
GB583259A (en) Improvements relating to electric light fittings
GB468822A (en) Improvement in starting circuit for gas or vapour filled electric discharge devices
GB434762A (en) Improvements in or relating to change-over shutters for cinematograph projectors
GB526758A (en) Improvements in or relating to electrical transformers
GB579920A (en) Improvements in apparatus for producing flashes of light
GB454777A (en) Improvements relating to the projection of films narrower than standard
GB456711A (en) Improvements in or relating to switching devices for glow lamps
GB515216A (en) Improvements in and relating to electric protective arrangements more particularly for luminious electric discharge tube systems
GB402511A (en) Improvements in or relating to flashlight photography
GB449248A (en) Improvements in and relating to electro-magnetically operated overload switches
GB435031A (en) Safety device for electrical welding machines having a cooling fluid circulation system
GB373815A (en) Improvements in and relating to electric control arrangements
GB519953A (en) An improved electrical alarm for indicating failure of a supply current
GB510213A (en) Improvements in and relating to ignition systems
GB147769A (en) Means for ensuring the carrying out of emergency operations in cinema halls simultaneously with the accidental ignition of a film