GB177607A - Improvements in photographic film cameras - Google Patents

Improvements in photographic film cameras

Info

Publication number
GB177607A
GB177607A GB3661820A GB3661820A GB177607A GB 177607 A GB177607 A GB 177607A GB 3661820 A GB3661820 A GB 3661820A GB 3661820 A GB3661820 A GB 3661820A GB 177607 A GB177607 A GB 177607A
Authority
GB
United Kingdom
Prior art keywords
shutter
slide
rotated
shaft
pulley
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
GB3661820A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3661820A priority Critical patent/GB177607A/en
Publication of GB177607A publication Critical patent/GB177607A/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
    • G03B19/02—Still-picture cameras
    • G03B19/04—Roll-film cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Making Paper Articles (AREA)

Abstract

177,607. Koehl, K. Dec. 31, 1920. No Patent granted (Sealing fee not paid). Magazine hand cameras for roll films with connected action between shutter and changing mechanism.-The film is fed by a claw on a slide - operated by cords and pulleys, and the shutter is operated by a rotary cam actuated during the return movement of the slide. In the construction shown, the slide 8 carrying a claw 10 is reciprocated on a rail 9 by cords wound on pulleys 3, 12. The feeding-pulley 3 is mounted on a shaft 2 and is rotated by ratchet gear when the shaft is rotated by an external handle 4. The return pulley 12 is rotated by a spring 13, Fig. 1. A rotary cam 16, of the kind described in Specification 176,557, is loosely mounted on the shaft 2 and, during the return movement, is coupled to the pulley 3 by ratchet gear. The cam 16 operates the shutter 18, Fig. 4, through a cranked lever 17. A ratchet-wheel 15 and pawl 20 prevent retrograde rotation of the cam.
GB3661820A 1920-12-31 1920-12-31 Improvements in photographic film cameras Expired GB177607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3661820A GB177607A (en) 1920-12-31 1920-12-31 Improvements in photographic film cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3661820A GB177607A (en) 1920-12-31 1920-12-31 Improvements in photographic film cameras

Publications (1)

Publication Number Publication Date
GB177607A true GB177607A (en) 1922-03-31

Family

ID=10389747

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3661820A Expired GB177607A (en) 1920-12-31 1920-12-31 Improvements in photographic film cameras

Country Status (1)

Country Link
GB (1) GB177607A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674931A (en) * 1951-02-13 1954-04-13 Eastman Kodak Co Film winding control for extrusion loading cameras

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674931A (en) * 1951-02-13 1954-04-13 Eastman Kodak Co Film winding control for extrusion loading cameras

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