GB1269178A - Apparatus for exposing photosensitized plates - Google Patents
Apparatus for exposing photosensitized platesInfo
- Publication number
- GB1269178A GB1269178A GB49376/70A GB4937670A GB1269178A GB 1269178 A GB1269178 A GB 1269178A GB 49376/70 A GB49376/70 A GB 49376/70A GB 4937670 A GB4937670 A GB 4937670A GB 1269178 A GB1269178 A GB 1269178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- conveyor
- film
- station
- window assembly
- 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
- 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
- G03B27/20—Maintaining or producing contact pressure between original and light-sensitive material by using a vacuum or fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
1,269,178. Photographic contact printer. WESTERN LITHO PLATE & SUPPLY CO.: Oct. 16, 1970 [Oct. 31, 1969], No.49376/70. Heading G2A. Photographic printing apparatus comprises an endless conveyor 1 which is intermittently movable for transporting a photo-sensitive plate (P) thereon from a first station I (at which the film and plate are loaded on to the conveyor) through a second station E (at which the plate is exposed through a film (F) while the conveyor is stopped) to a third station O, and means (3) which press the plate during exposure, but are released when the plate is transported. In a contact printing apparatus shown Fig. 1 the conveyor comprises a pair of endless chains 29 mounted along channels (15) and (17) of an elongate table 11; between the chains are mounted bars (53) which travel over top plates (23), (25) of the table and have pins (55) for holding the plate and film in register. Pressing means (3) consists of a vacuum frame having a resilient backing pad (63) and a window assembly (59) in a counterbalanced hinged frame (69), and connected to a vacuum pump 123. The light source 7 is adjustably mounted on bars 129 and cooled by a blower 135, the exposure time being variable by means of a shutter controlled by a relay (VTR). In use the plate and film are placed on the conveyor at station I and moved to the exposure position, the window assembly (59) lowered, the vacuum pump started, the shutter actuated, the vacuum pump stopped, the window assembly retracted, the film removed by a vacuum cup lifter and the plate fed into a processing apparatus.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87286769A | 1969-10-31 | 1969-10-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1269178A true GB1269178A (en) | 1972-04-06 |
Family
ID=25360473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB49376/70A Expired GB1269178A (en) | 1969-10-31 | 1970-10-16 | Apparatus for exposing photosensitized plates |
Country Status (8)
Country | Link |
---|---|
US (1) | US3635559A (en) |
BE (1) | BE758336A (en) |
CA (1) | CA931410A (en) |
CH (1) | CH518570A (en) |
DE (1) | DE2052675A1 (en) |
FR (1) | FR2066791A5 (en) |
GB (1) | GB1269178A (en) |
NL (1) | NL7015907A (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3810694A (en) * | 1970-09-10 | 1974-05-14 | Western Litho Plate & Supply | Photographic printing apparatus |
JPS5229739A (en) * | 1975-09-02 | 1977-03-05 | Dainippon Screen Mfg Co Ltd | Close contact printing device |
US4178097A (en) * | 1977-09-06 | 1979-12-11 | Beach Manufacturing Corporation | Automatic lithographic plate processor |
US4316669A (en) * | 1979-04-17 | 1982-02-23 | Kabushiki Kaisha Kaneda Kikai Seisakusho | Exposure apparatus |
US4353647A (en) * | 1981-01-08 | 1982-10-12 | Western Litho Plate & Supply Company | Apparatus for exposing and conveying photosensitive plates |
DE3220637A1 (en) * | 1982-06-02 | 1983-12-08 | Hans 6250 Limburg Haus | DEVICE FOR INPUTING, OUTPUTING AND SEPARATING COPY AND EXPOSURE COATINGS |
GB8319979D0 (en) * | 1983-07-25 | 1983-08-24 | Stroud E J F | Printing plates |
US4614425A (en) * | 1984-04-20 | 1986-09-30 | Western Litho Plate & Supply Co. | Photographic printing method and apparatus |
US4575233A (en) * | 1984-04-20 | 1986-03-11 | Western Litho Plate & Supply Co. | Photographic printing |
US4575235A (en) * | 1984-06-08 | 1986-03-11 | Western Litho Plate & Supply Co. | Photographic printing apparatus and methods |
US4754309A (en) * | 1986-07-25 | 1988-06-28 | Amergraph Corporation | Vacuum frame |
SE456195B (en) * | 1987-08-27 | 1988-09-12 | Persson Johnny | DEVICE FOR EXPOSURE OF CRAZY PRESSURES |
US4951089A (en) * | 1989-06-09 | 1990-08-21 | Western Litho Plate And Supply Company | Photographic printing apparatus |
US5347341A (en) * | 1993-06-10 | 1994-09-13 | Western Litho Plate & Supply Co. | Photographic printing apparatus |
US5875023A (en) * | 1997-01-31 | 1999-02-23 | International Business Machines Corporation | Dual-sided expose mechanism for web product |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3468606A (en) * | 1968-01-08 | 1969-09-23 | Extek Inc | Method and apparatus for contact printing film |
-
0
- BE BE758336D patent/BE758336A/en unknown
-
1969
- 1969-10-31 US US872867A patent/US3635559A/en not_active Expired - Lifetime
-
1970
- 1970-10-16 GB GB49376/70A patent/GB1269178A/en not_active Expired
- 1970-10-19 CA CA095894A patent/CA931410A/en not_active Expired
- 1970-10-27 DE DE19702052675 patent/DE2052675A1/en active Pending
- 1970-10-29 NL NL7015907A patent/NL7015907A/xx unknown
- 1970-10-30 CH CH1616770A patent/CH518570A/en not_active IP Right Cessation
- 1970-10-30 FR FR7039282A patent/FR2066791A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CA931410A (en) | 1973-08-07 |
FR2066791A5 (en) | 1971-08-06 |
US3635559A (en) | 1972-01-18 |
BE758336A (en) | 1971-04-30 |
DE2052675A1 (en) | 1971-05-06 |
CH518570A (en) | 1972-01-31 |
NL7015907A (en) | 1971-05-04 |
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