GB175146A - Improvements in and relating to automatic shutters for kinematographic projection lanterns and the like - Google Patents

Improvements in and relating to automatic shutters for kinematographic projection lanterns and the like

Info

Publication number
GB175146A
GB175146A GB3493920A GB3493920A GB175146A GB 175146 A GB175146 A GB 175146A GB 3493920 A GB3493920 A GB 3493920A GB 3493920 A GB3493920 A GB 3493920A GB 175146 A GB175146 A GB 175146A
Authority
GB
United Kingdom
Prior art keywords
relating
automatic shutters
kinematographic
lanterns
projection lanterns
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
GB3493920A
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.)
HAROLD WILLEY
JOHN HERBERT GREENFIELD
Original Assignee
HAROLD WILLEY
JOHN HERBERT GREENFIELD
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 HAROLD WILLEY, JOHN HERBERT GREENFIELD filed Critical HAROLD WILLEY
Priority to GB3493920A priority Critical patent/GB175146A/en
Publication of GB175146A publication Critical patent/GB175146A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB3493920A 1920-12-11 1920-12-11 Improvements in and relating to automatic shutters for kinematographic projection lanterns and the like Expired GB175146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3493920A GB175146A (en) 1920-12-11 1920-12-11 Improvements in and relating to automatic shutters for kinematographic projection lanterns and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3493920A GB175146A (en) 1920-12-11 1920-12-11 Improvements in and relating to automatic shutters for kinematographic projection lanterns and the like

Publications (1)

Publication Number Publication Date
GB175146A true GB175146A (en) 1922-02-16

Family

ID=10371816

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3493920A Expired GB175146A (en) 1920-12-11 1920-12-11 Improvements in and relating to automatic shutters for kinematographic projection lanterns and the like

Country Status (1)

Country Link
GB (1) GB175146A (en)

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