GB800759A - Improvements in cinematograph intermittent feed mechanism - Google Patents

Improvements in cinematograph intermittent feed mechanism

Info

Publication number
GB800759A
GB800759A GB34459/56A GB3445956A GB800759A GB 800759 A GB800759 A GB 800759A GB 34459/56 A GB34459/56 A GB 34459/56A GB 3445956 A GB3445956 A GB 3445956A GB 800759 A GB800759 A GB 800759A
Authority
GB
United Kingdom
Prior art keywords
film
sprocket
pin
intermittent feed
spring
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
GB34459/56A
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.)
FORTUNATO DI MARINO
Original Assignee
FORTUNATO DI MARINO
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 FORTUNATO DI MARINO filed Critical FORTUNATO DI MARINO
Publication of GB800759A publication Critical patent/GB800759A/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
    • G03B1/00—Film strip handling
    • G03B1/18—Moving film strip by means which act on the film between the ends thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)

Abstract

800,759. Kinematograph apparatus. MARINO, F. DI. Nov. 12. 1956 [Nov. 10, 1955], No. 34459/56. Class 97(1) An intermittent feed device, for example, for a film viewer, comprises a sprocket 11 and a spring blade 10 having one end fixed while the other bears on the film between the viewing aperture and the sprocket to form a loop with a perforation engaged on a locating pin 13 so that as the sprocket is rotated, as by a handle 12, the loop is shortened until the film is disengaged from the pin whereupon the spring feeds the film to engage the next perforation on the pin. In the form shown another spring 9 retains the film on the sprocket. Both springs are secured to a slidably detachable member 8, in which the viewing aperture is formed and which retains the film in a runway formed in the body 1. A cylindrical sprocket housing 4 may be moulded integrally with the body 1 and an eye-cup 2.
GB34459/56A 1955-11-10 1956-11-12 Improvements in cinematograph intermittent feed mechanism Expired GB800759A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT800759X 1955-11-10

Publications (1)

Publication Number Publication Date
GB800759A true GB800759A (en) 1958-09-03

Family

ID=11316866

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34459/56A Expired GB800759A (en) 1955-11-10 1956-11-12 Improvements in cinematograph intermittent feed mechanism

Country Status (1)

Country Link
GB (1) GB800759A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397827A (en) * 1967-04-20 1968-08-20 Raymond A. Heisler Reversible sprag-type film escapement mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397827A (en) * 1967-04-20 1968-08-20 Raymond A. Heisler Reversible sprag-type film escapement mechanism

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