FR621205A - Improvements to cinematographic projection devices - Google Patents

Improvements to cinematographic projection devices

Info

Publication number
FR621205A
FR621205A FR621205DA FR621205A FR 621205 A FR621205 A FR 621205A FR 621205D A FR621205D A FR 621205DA FR 621205 A FR621205 A FR 621205A
Authority
FR
France
Prior art keywords
projection devices
cinematographic projection
cinematographic
devices
projection
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
Other languages
French (fr)
Inventor
Marcel Hardon
Felix Liardet
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 filed Critical
Application granted granted Critical
Publication of FR621205A publication Critical patent/FR621205A/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
    • G03B1/38—Moving film strip by means which act on the film between the ends thereof embodying Geneva motion, e.g. Maltese-cross gearing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR621205D 1926-09-09 1926-09-09 Improvements to cinematographic projection devices Expired FR621205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR621205T 1926-09-09

Publications (1)

Publication Number Publication Date
FR621205A true FR621205A (en) 1927-05-07

Family

ID=8984953

Family Applications (1)

Application Number Title Priority Date Filing Date
FR621205D Expired FR621205A (en) 1926-09-09 1926-09-09 Improvements to cinematographic projection devices

Country Status (1)

Country Link
FR (1) FR621205A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816459A (en) * 1948-12-27 1957-12-17 Blaw Knox Co Indexing mechanism
FR2462726A1 (en) * 1979-07-31 1981-02-13 American Electronics MOVIE ADVANCE MECHANISM AND CAMERA
US5255463A (en) * 1989-08-04 1993-10-26 Werner Paul H Rotating sign assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816459A (en) * 1948-12-27 1957-12-17 Blaw Knox Co Indexing mechanism
FR2462726A1 (en) * 1979-07-31 1981-02-13 American Electronics MOVIE ADVANCE MECHANISM AND CAMERA
US5255463A (en) * 1989-08-04 1993-10-26 Werner Paul H Rotating sign assembly

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