CA946812A - Web transport system - Google Patents

Web transport system

Info

Publication number
CA946812A
CA946812A CA111,244A CA111244A CA946812A CA 946812 A CA946812 A CA 946812A CA 111244 A CA111244 A CA 111244A CA 946812 A CA946812 A CA 946812A
Authority
CA
Canada
Prior art keywords
transport system
web transport
web
transport
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
CA111,244A
Other languages
English (en)
Inventor
Thomas A. Turgeon
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of CA946812A publication Critical patent/CA946812A/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6271—Holders for the original in enlargers
    • G03B27/6285—Handling strips
    • 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
    • G03B21/10—Projectors with built-in or built-on screen
    • G03B21/11—Projectors with built-in or built-on screen for microfilm reading
    • G03B21/111—Projectors with built-in or built-on screen for microfilm reading of roll films
    • G03B21/113—Handling roll films

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Replacement Of Web Rolls (AREA)
  • Projection-Type Copiers In General (AREA)
  • Unwinding Webs (AREA)
CA111,244A 1970-04-24 1971-04-23 Web transport system Expired CA946812A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3168370A 1970-04-24 1970-04-24

Publications (1)

Publication Number Publication Date
CA946812A true CA946812A (en) 1974-05-07

Family

ID=21860842

Family Applications (1)

Application Number Title Priority Date Filing Date
CA111,244A Expired CA946812A (en) 1970-04-24 1971-04-23 Web transport system

Country Status (6)

Country Link
US (1) US3630469A (de)
CA (1) CA946812A (de)
CH (1) CH540179A (de)
DE (1) DE2119986A1 (de)
FR (1) FR2090681A5 (de)
GB (1) GB1349472A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106725A (en) * 1976-12-16 1978-08-15 Oskar Hubert Richt Drive unit for magnetic tape-recorders
CH619398A5 (de) * 1977-04-14 1980-09-30 Bobst Fils Sa J
US4709869A (en) * 1986-04-14 1987-12-01 Candler Darrell E Film storage system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126161A (en) * 1964-03-24 Self-threading device
US2615641A (en) * 1950-08-29 1952-10-28 John Reginald Bryans Magnetic tape sound recording and reproducing apparatus
US3498571A (en) * 1968-08-13 1970-03-03 Interface Mechanisms Tape reel drive system

Also Published As

Publication number Publication date
DE2119986A1 (de) 1971-11-04
CH540179A (de) 1973-08-15
FR2090681A5 (de) 1972-01-14
GB1349472A (en) 1974-04-03
US3630469A (en) 1971-12-28

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