GB180836A - An improved safety shutter for cinematograph machines - Google Patents

An improved safety shutter for cinematograph machines

Info

Publication number
GB180836A
GB180836A GB1020321A GB1020321A GB180836A GB 180836 A GB180836 A GB 180836A GB 1020321 A GB1020321 A GB 1020321A GB 1020321 A GB1020321 A GB 1020321A GB 180836 A GB180836 A GB 180836A
Authority
GB
United Kingdom
Prior art keywords
improved safety
safety shutter
cinematograph
machines
cinematograph machines
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
GB1020321A
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.)
WALTER HAROLD PENNY
Original Assignee
WALTER HAROLD PENNY
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 WALTER HAROLD PENNY filed Critical WALTER HAROLD PENNY
Priority to GB1020321A priority Critical patent/GB180836A/en
Publication of GB180836A publication Critical patent/GB180836A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/18—Fire preventing or extinguishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB1020321A 1921-04-06 1921-04-06 An improved safety shutter for cinematograph machines Expired GB180836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1020321A GB180836A (en) 1921-04-06 1921-04-06 An improved safety shutter for cinematograph machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1020321A GB180836A (en) 1921-04-06 1921-04-06 An improved safety shutter for cinematograph machines

Publications (1)

Publication Number Publication Date
GB180836A true GB180836A (en) 1922-06-08

Family

ID=9963473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1020321A Expired GB180836A (en) 1921-04-06 1921-04-06 An improved safety shutter for cinematograph machines

Country Status (1)

Country Link
GB (1) GB180836A (en)

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