CA1008287A - Photographic cassette film tension regulator - Google Patents

Photographic cassette film tension regulator

Info

Publication number
CA1008287A
CA1008287A CA160,409A CA160409A CA1008287A CA 1008287 A CA1008287 A CA 1008287A CA 160409 A CA160409 A CA 160409A CA 1008287 A CA1008287 A CA 1008287A
Authority
CA
Canada
Prior art keywords
tension regulator
film tension
cassette film
photographic cassette
photographic
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
CA160,409A
Other languages
English (en)
Other versions
CA160409S (en
Inventor
John R. Sharp
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of CA1008287A publication Critical patent/CA1008287A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D9/00—Diffusion development apparatus
    • 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
    • G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system
    • G03B1/54—Tensioning or loop-maintaining devices
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/26—Holders for containing light sensitive material and adapted to be inserted within the camera
    • G03B17/265—Holders for containing light sensitive material and adapted to be inserted within the camera specially adapted for motion picture film, e.g. cassettes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Unwinding Webs (AREA)
CA160,409A 1972-01-03 1973-01-02 Photographic cassette film tension regulator Expired CA1008287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21454872A 1972-01-03 1972-01-03

Publications (1)

Publication Number Publication Date
CA1008287A true CA1008287A (en) 1977-04-12

Family

ID=22799502

Family Applications (1)

Application Number Title Priority Date Filing Date
CA160,409A Expired CA1008287A (en) 1972-01-03 1973-01-02 Photographic cassette film tension regulator

Country Status (7)

Country Link
US (1) US3756707A (sl)
JP (1) JPS5653738B2 (sl)
BE (1) BE793644A (sl)
CA (1) CA1008287A (sl)
DE (1) DE2300077C2 (sl)
FR (1) FR2167631B1 (sl)
GB (1) GB1387371A (sl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910692A (en) * 1974-01-02 1975-10-07 Polaroid Corp Film handling cassette assembly
US6302344B1 (en) 1999-07-01 2001-10-16 Chen K. Su Lightweight video cassette
CA2612246C (en) * 2005-06-29 2013-05-14 Thomson Licensing Film security code

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197686C (sl) *
US2172235A (en) * 1937-07-31 1939-09-05 Eastman Kodak Co Loop-forming mechanism for motionpicture machines
DE1016120B (de) * 1954-07-07 1957-09-19 Steatit Magnesia Ag Laufbildwerfer
US3065890A (en) * 1959-05-29 1962-11-27 Bell & Howell Co Loop restorer
US3294302A (en) * 1963-04-10 1966-12-27 Rca Corp Motion picture apparatus
US3268287A (en) * 1965-10-23 1966-08-23 Otto R Nemeth Pulse operated photographic apparatus
JPS4311037Y1 (sl) * 1965-11-25 1968-05-13
US3547331A (en) * 1968-02-05 1970-12-15 John R Hereford Intermittent advancing mechanism for film in a pulse camera or the like
US3604790A (en) * 1969-01-21 1971-09-14 Polaroid Corp Multipurpose cassette including sound recording and playback station
US3589807A (en) * 1969-02-27 1971-06-29 Eastman Kodak Co Film snubber for a sprocketless motion-picture projector
US3608808A (en) * 1969-03-06 1971-09-28 Digitronics Corp Tape transport tensioning mechanism
US3608455A (en) * 1969-04-04 1971-09-28 Polaroid Corp System for processing a strip of photographic material
DE1960595A1 (de) * 1969-12-03 1971-06-09 Reiner Kraemer Wickeleinrichtung,insbesondere zum Wickeln von Masten od.dgl. aus glasfaserverstaerkten Kunstharzmassen
US3643579A (en) * 1969-12-29 1972-02-22 Polaroid Corp Motion picture processing system
US3640438A (en) * 1970-03-04 1972-02-08 Eastman Kodak Co Web-handling apparatus
US3656674A (en) * 1970-03-18 1972-04-18 Eastman Kodak Co Web tension isolator or amplifier for web handling apparatus
US3643891A (en) * 1970-11-19 1972-02-22 Cubic Corp Film transport unit

Also Published As

Publication number Publication date
DE2300077A1 (de) 1973-07-12
JPS5653738B2 (sl) 1981-12-21
BE793644A (fr) 1973-07-03
FR2167631B1 (sl) 1977-04-29
JPS4875230A (sl) 1973-10-11
GB1387371A (en) 1975-03-19
US3756707A (en) 1973-09-04
DE2300077C2 (de) 1982-05-27
FR2167631A1 (sl) 1973-08-24

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