GB1310446A - Photocopying apparatus - Google Patents

Photocopying apparatus

Info

Publication number
GB1310446A
GB1310446A GB6067070A GB6067070A GB1310446A GB 1310446 A GB1310446 A GB 1310446A GB 6067070 A GB6067070 A GB 6067070A GB 6067070 A GB6067070 A GB 6067070A GB 1310446 A GB1310446 A GB 1310446A
Authority
GB
United Kingdom
Prior art keywords
roller
belts
drive roller
cylinder
main drive
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
GB6067070A
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.)
GAF Corp
Original Assignee
GAF 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 GAF Corp filed Critical GAF Corp
Publication of GB1310446A publication Critical patent/GB1310446A/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
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/10—Copying apparatus with a relative movement between the original and the light source during exposure
    • 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
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

1310446 Photographic copying apparatus GAF CORP 21 Dec 1970 [31 Dec 1969] 60670/70 Heading G2A Photo-copying apparatus includes a main drive roller 1, which advances multiple belts 2 carrying master M and copy C materials towards a rotating transparent printing cylinder 3, and an auxiliary drive roller 5, which draws the belts from the cylinder 3 and is driven at a speed effectively greater than that of the main drive roller 1, thus taking up any slack 4 tending to form in the belts as they move round the cylinder 3 through the exposure zone 10. The surface 8 of roller 5 has a coefficient of friction less than that of the surface 9 of the main drive roller 1 so that the roller 5 continuously slips against the adjacent surface of the belts 2. The speed of roller 5 may be adjusted by means 6a associated with drive means 6.
GB6067070A 1969-12-31 1970-12-21 Photocopying apparatus Expired GB1310446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88952569A 1969-12-31 1969-12-31

Publications (1)

Publication Number Publication Date
GB1310446A true GB1310446A (en) 1973-03-21

Family

ID=25395283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6067070A Expired GB1310446A (en) 1969-12-31 1970-12-21 Photocopying apparatus

Country Status (8)

Country Link
US (1) US3658418A (en)
CA (1) CA924949A (en)
CH (1) CH516175A (en)
DE (2) DE7047591U (en)
GB (1) GB1310446A (en)
NL (1) NL7018976A (en)
SE (1) SE357628B (en)
ZA (1) ZA708714B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3749491A (en) * 1972-02-07 1973-07-31 Stromberg Datagraphix Inc Microfiche duplicator
JPS4890530A (en) * 1972-03-03 1973-11-26
DE2938906A1 (en) * 1979-09-26 1981-04-16 Hansa-Technik Gmbh, 2000 Hamburg LIGHT UNIT

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324292A (en) * 1964-10-26 1967-06-06 Robert B Russell Thermographic copying machine with a series of driven rollers to separate the copy and transfer sheets
NL6509596A (en) * 1965-07-23 1967-01-24

Also Published As

Publication number Publication date
CH516175A (en) 1971-11-30
NL7018976A (en) 1971-07-02
DE2063667A1 (en) 1971-07-08
DE2063667B2 (en) 1976-12-30
SE357628B (en) 1973-07-02
US3658418A (en) 1972-04-25
CA924949A (en) 1973-04-24
DE7047591U (en) 1971-04-01
ZA708714B (en) 1971-11-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee