FR2222862A5 - Method of winding and unwinding of endless strip - draws strip from centre of spool and rewinds on outside esp. for film - Google Patents

Method of winding and unwinding of endless strip - draws strip from centre of spool and rewinds on outside esp. for film

Info

Publication number
FR2222862A5
FR2222862A5 FR7311452A FR7311452A FR2222862A5 FR 2222862 A5 FR2222862 A5 FR 2222862A5 FR 7311452 A FR7311452 A FR 7311452A FR 7311452 A FR7311452 A FR 7311452A FR 2222862 A5 FR2222862 A5 FR 2222862A5
Authority
FR
France
Prior art keywords
film
spool
strip
rewinds
unwinding
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
FR7311452A
Other languages
French (fr)
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.)
BOYER JEAN PAUL FR
Original Assignee
BOYER JEAN PAUL FR
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 BOYER JEAN PAUL FR filed Critical BOYER JEAN PAUL FR
Priority to FR7311452A priority Critical patent/FR2222862A5/en
Application granted granted Critical
Publication of FR2222862A5 publication Critical patent/FR2222862A5/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Replacement Of Web Rolls (AREA)

Abstract

Machine, in particular for several spools of film, has individual spools one above the other, with the inner end of each connected via guides and drive rollers to the outer end of the spool above. The inner end of the uppermost spool is fed to the film projector, and the returning film is fed to the outside of the lowest spool. Each spool lies on a friction-driven disc drives from below by an electric motor, shaft and pulley arrangement driving all the mounting discs. The same shaft carries the film driving rollers. A film tensioning device varies the motor speed as necessary.
FR7311452A 1973-03-21 1973-03-21 Method of winding and unwinding of endless strip - draws strip from centre of spool and rewinds on outside esp. for film Expired FR2222862A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7311452A FR2222862A5 (en) 1973-03-21 1973-03-21 Method of winding and unwinding of endless strip - draws strip from centre of spool and rewinds on outside esp. for film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7311452A FR2222862A5 (en) 1973-03-21 1973-03-21 Method of winding and unwinding of endless strip - draws strip from centre of spool and rewinds on outside esp. for film

Publications (1)

Publication Number Publication Date
FR2222862A5 true FR2222862A5 (en) 1974-10-18

Family

ID=9117092

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7311452A Expired FR2222862A5 (en) 1973-03-21 1973-03-21 Method of winding and unwinding of endless strip - draws strip from centre of spool and rewinds on outside esp. for film

Country Status (1)

Country Link
FR (1) FR2222862A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459671A2 (en) * 1990-05-29 1991-12-04 Mobil Oil Corporation Method and apparatus for the removal of film strip material from a plurality of film reels or reel cartridges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459671A2 (en) * 1990-05-29 1991-12-04 Mobil Oil Corporation Method and apparatus for the removal of film strip material from a plurality of film reels or reel cartridges
EP0459671A3 (en) * 1990-05-29 1993-03-31 Mobil Oil Corporation Method and apparatus for the removal of film strip material from a plurality of film reels or reel cartridges

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Legal Events

Date Code Title Description
ST Notification of lapse