GB286491A - Improved photographic film camera - Google Patents

Improved photographic film camera

Info

Publication number
GB286491A
GB286491A GB1025827A GB1025827A GB286491A GB 286491 A GB286491 A GB 286491A GB 1025827 A GB1025827 A GB 1025827A GB 1025827 A GB1025827 A GB 1025827A GB 286491 A GB286491 A GB 286491A
Authority
GB
United Kingdom
Prior art keywords
spring
lever
arm
mirror
shaft
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
GB1025827A
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 GB1025827A priority Critical patent/GB286491A/en
Publication of GB286491A publication Critical patent/GB286491A/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)
  • Cameras In General (AREA)

Abstract

286,491. Reiterer, R., and Hofmann, J. C. April 14, 1927. Cameras, reflex.-A roll-film casing with a focal plane shutter 9, Fig. 1, is mounted on the top of the camera and the film 11 is exposed by reaction from a mirror 1 which is adapted to be moved down from a horizontal inoperative position to an angle of 45‹. The image is focused on a rear screen 12. The mirror is normally raised to the inoperative position by a spring 3, Fig. 2, on the shaft 2. It is moved down for exposure by an outside projecting finger-piece 6 on an angle-lever 4, 7, which is freely mounted on the shaft 2. The lever 4, 7 turns the shaft 2 by a spring 5 and lever 17, the spring 5 being stronger than the spring 3. When the mirror comes against a frame at an angle of 45‹, further action on the projection 6 causes the arm 7 to engage a pin 8 and release the shutter. After releasing the projection 6, the mirror returns to its inoperative position and the lever 4, 7 over-shoots its normal position, the arm 7 releasing a spring arm 16 holding a spring wheel 14 which now rotates the film winding spool 10 until arrested again by the arm 16.
GB1025827A 1927-04-14 1927-04-14 Improved photographic film camera Expired GB286491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1025827A GB286491A (en) 1927-04-14 1927-04-14 Improved photographic film camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1025827A GB286491A (en) 1927-04-14 1927-04-14 Improved photographic film camera

Publications (1)

Publication Number Publication Date
GB286491A true GB286491A (en) 1928-03-08

Family

ID=9964542

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1025827A Expired GB286491A (en) 1927-04-14 1927-04-14 Improved photographic film camera

Country Status (1)

Country Link
GB (1) GB286491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226615A1 (en) * 1971-06-09 1972-12-21 Polaroid Corp , Cambridge, Mass (V St A) Single lens reflex camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2226615A1 (en) * 1971-06-09 1972-12-21 Polaroid Corp , Cambridge, Mass (V St A) Single lens reflex camera

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