GB176557A - Improvements in photographic film cameras - Google Patents

Improvements in photographic film cameras

Info

Publication number
GB176557A
GB176557A GB3608320A GB3608320A GB176557A GB 176557 A GB176557 A GB 176557A GB 3608320 A GB3608320 A GB 3608320A GB 3608320 A GB3608320 A GB 3608320A GB 176557 A GB176557 A GB 176557A
Authority
GB
United Kingdom
Prior art keywords
lever
film
shutter
shaft
cameras
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
GB3608320A
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 GB3608320A priority Critical patent/GB176557A/en
Publication of GB176557A publication Critical patent/GB176557A/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)

Abstract

176,557. Koehl, K. Dec. 23, 1920. No Patent granted (Sealing fee not paid). Magazine hand cameras for roll films, with connected action between shutter and changing mechanism.-Relates to cameras of the kind in which the film is advanced by wheels 3 each having part of its circumference toothed for direct engagement with the film, as described in Specification 175,834. The invent:on consists in means for automatically operating the shutter and for puncturing the film between the picture fields. In the construction shown, the shaft 2 of the feed wheels is turned by means of a cord 21 pulled from the outside of the camera. The shutter 12 is opened and closed by a lever 8, one end of which engages a cam keyed on the shaft 2. To enable the exposure time to be varied, the cam is composed of a number of segments 4, 5, 6, 7, Fig. 4, of different lengths, and the pivot 9 of the lever 8 is adjustable axially by means of an external thumb-piece, so that the lever can be brought into engagement with one or other of the segments. The device for marking the film between the fields comprises a lever 18, having a needle point 20, operated by a tappet 16 on the shaft 2.
GB3608320A 1920-12-23 1920-12-23 Improvements in photographic film cameras Expired GB176557A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3608320A GB176557A (en) 1920-12-23 1920-12-23 Improvements in photographic film cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3608320A GB176557A (en) 1920-12-23 1920-12-23 Improvements in photographic film cameras

Publications (1)

Publication Number Publication Date
GB176557A true GB176557A (en) 1922-03-16

Family

ID=10384753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3608320A Expired GB176557A (en) 1920-12-23 1920-12-23 Improvements in photographic film cameras

Country Status (1)

Country Link
GB (1) GB176557A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858752A (en) * 1953-03-06 1958-11-04 Agfa Ag Scanning mechanism for roll-film cameras
US2879704A (en) * 1954-01-11 1959-03-31 Agfa Ag Roll-film photographic cameras

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2858752A (en) * 1953-03-06 1958-11-04 Agfa Ag Scanning mechanism for roll-film cameras
US2879704A (en) * 1954-01-11 1959-03-31 Agfa Ag Roll-film photographic cameras

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