GB1023601A - Photocopying machines - Google Patents
Photocopying machinesInfo
- Publication number
- GB1023601A GB1023601A GB25414/63A GB2541463A GB1023601A GB 1023601 A GB1023601 A GB 1023601A GB 25414/63 A GB25414/63 A GB 25414/63A GB 2541463 A GB2541463 A GB 2541463A GB 1023601 A GB1023601 A GB 1023601A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bands
- cylinder
- exposure
- areas
- june
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/08—Photoprinting; Processes and means for preventing photoprinting
-
- 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
- G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
-
- 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
- G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
- G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
1,023,601. Photocopying apparatus. LAWES BROS Ltd. June 23, 1964 [June 26, 1963], No. 25414/63. Heading G2A. In a photocopying machine in which the original and copy sheet are conveyed together in contact round a translucent cylinder 1 housing a light source 2 by a number of separate endless bands 7 spaced along the length of the cylinder, the areas of the copy sheet registering with the bands is given a different degree of exposure from those areas registering with the spaces between the bands. As shown, this is effected by a comb plate 5 fixed to an air-duct 4 which is located within the cylinder 1, and which also carries a reflector 3. The comb plate has a castellated edge with cutaway'slots 6 corresponding to the spaces between the bands 7. Thus as the sheets are carried round the exposure cylinder, those areas passing below the slots 6 will receive more exposure than the remaining areas. It is stated that this differential exposure tends to eliminate the streakiness sometimes obtained with separate conveyor belts.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25414/63A GB1023601A (en) | 1963-06-26 | 1963-06-26 | Photocopying machines |
US376976A US3329076A (en) | 1963-06-26 | 1964-06-22 | Photocopying machines |
NL6407291A NL6407291A (en) | 1963-06-26 | 1964-06-26 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25414/63A GB1023601A (en) | 1963-06-26 | 1963-06-26 | Photocopying machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1023601A true GB1023601A (en) | 1966-03-23 |
Family
ID=10227294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25414/63A Expired GB1023601A (en) | 1963-06-26 | 1963-06-26 | Photocopying machines |
Country Status (3)
Country | Link |
---|---|
US (1) | US3329076A (en) |
GB (1) | GB1023601A (en) |
NL (1) | NL6407291A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL6510002A (en) * | 1965-08-02 | 1967-02-03 | ||
US3482918A (en) * | 1967-10-04 | 1969-12-09 | Gaf Corp | Exposure assembly for light sensitive diazo-type copy paper |
US3993124A (en) * | 1971-12-30 | 1976-11-23 | Xerox Corporation | Method and apparatus for fuser assembly cooling in an electrostatographic machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2895395A (en) * | 1955-04-16 | 1959-07-21 | Engelhard Ind Inc | Conveyor device for photo-printing material in photo-printing machines |
-
1963
- 1963-06-26 GB GB25414/63A patent/GB1023601A/en not_active Expired
-
1964
- 1964-06-22 US US376976A patent/US3329076A/en not_active Expired - Lifetime
- 1964-06-26 NL NL6407291A patent/NL6407291A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NL6407291A (en) | 1964-12-28 |
US3329076A (en) | 1967-07-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK138110B (en) | Apparatus for conveying documents in a copier. | |
GB1258823A (en) | ||
GB1253887A (en) | Xerographic reproduction apparatus including a half-tone line screen | |
CH496966A (en) | Photosensitive material for making relief forms for printing | |
ES8308761A1 (en) | Belt-type printing machine. | |
GB1023601A (en) | Photocopying machines | |
ES254042Y (en) | PRESS FOR FLEXOGRAPHIC PRINTING WITH BELT | |
GB1036780A (en) | Photo-printing apparatus | |
GB1430974A (en) | Sheet separating devices | |
GB961923A (en) | Photocopy apparatus | |
ES432258A1 (en) | Photocopying | |
GB1092676A (en) | Photocopying machine | |
GB1000623A (en) | Improvements relating to bundle-transfer means for conveyors | |
ES383072A1 (en) | Automatic belt doffer | |
SU521047A1 (en) | Stamp for processing sheet material | |
JPS5395038A (en) | Both side copying method | |
SU501940A1 (en) | Belt conveyor | |
GB1198806A (en) | Improvements in Document Carriers for a Copying Machine | |
AR228829A1 (en) | COPIER COPY SHEET COMPUTER / CLASSIFIER | |
GB1168544A (en) | Sheet Responsive Device | |
GB821370A (en) | Improvements in tracking means for conveyer bands and belts | |
ES214646A1 (en) | Transportation machine-printing emitter (Machine-translation by Google Translate, not legally binding) | |
GB715718A (en) | Photographic contact printing machines | |
GB919125A (en) | Improvements in and relating to diazotype photo-copying apparatus | |
GB1126021A (en) | Improvements in photographic copying machines |