GB598118A - Improvements in or relating to rotary printing machines - Google Patents
Improvements in or relating to rotary printing machinesInfo
- Publication number
- GB598118A GB598118A GB1862945A GB1862945A GB598118A GB 598118 A GB598118 A GB 598118A GB 1862945 A GB1862945 A GB 1862945A GB 1862945 A GB1862945 A GB 1862945A GB 598118 A GB598118 A GB 598118A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- web
- suction
- couple
- cylinder
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
- B41F13/025—Registering devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
598,118. Feeding webs. JONES, K. W. July 20, 1945, No. 18629. [Class 100 (i)] In a web-fed rotary printing machine comprising one or more printing-units each comprising a stereo cylinder 1 and an impression roller 2, and means for maintaining tension on a web 3 as it passes through the units, a suction roller 7 either following or preceding the couple is provided constituting a master control cylinder effective to coordinate the draw of the web with the requirement of the cylinder 1 and maintain accurate register, the roller 7 being driven from the cylinder 1 or roller 2 by gearing co-related with the respective diameters to maintain constant the predetermined relation of the peripheral speeds of the roller 7 and the cylinder 1. The use of a suction roller is said to preclude slip between the web and the roller, any variation in the feed of the web due to variations in the diameter of the stereos being adjusted when gaps between the plates release the web. The roller 7 may be a perforated roller, e.g., as described in Specifications 559,388 and 570,795, or a non-perforated roller in a suction box 9 as described in Specification 598,148. By means of an intermediate gear 8, the roller 7 is driven from the roller 2 at a speed which may allow for known stretch of the web in travelling from the couple 1, 2 to the roller 7. Tension on the web is maintained by a brake on a supply roller 4 or by a suction bar or a suction roller 11 having a peripheral speed less than that of the couple 1, 2, the suction being such that the web can slip. Where the roller 7 precedes the couple, a roller 11 driven faster than the couple follows the latter, the suction allowing slip. A two-colour machine is described, the couples being connected by a gear between the impression rollers. Each couple of a multi-colour machine may have its own rollers 7 and 11.
Publications (1)
Publication Number | Publication Date |
---|---|
GB598118A true GB598118A (en) | 1948-02-11 |
Family
ID=1734077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1862945A Expired GB598118A (en) | 1945-07-20 | Improvements in or relating to rotary printing machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB598118A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2459133A1 (en) * | 1979-06-19 | 1981-01-09 | Roland Man Druckmasch | Rotary offset printing press - has smudge ring and transport cylinder diameters decreasing from last mechanism to first |
FR2623127A1 (en) * | 1987-11-12 | 1989-05-19 | Sarda Jean Claude | DEVICE FOR SUPPLYING AND RECEIVING A CONTINUOUS STRIP FOR PRINTING PRESSES OF SHEET LEAF TYPE |
-
1945
- 1945-07-20 GB GB1862945A patent/GB598118A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2459133A1 (en) * | 1979-06-19 | 1981-01-09 | Roland Man Druckmasch | Rotary offset printing press - has smudge ring and transport cylinder diameters decreasing from last mechanism to first |
FR2623127A1 (en) * | 1987-11-12 | 1989-05-19 | Sarda Jean Claude | DEVICE FOR SUPPLYING AND RECEIVING A CONTINUOUS STRIP FOR PRINTING PRESSES OF SHEET LEAF TYPE |
EP0317396A1 (en) * | 1987-11-12 | 1989-05-24 | Jean-Claude Sarda | Device for feeding and delivering a continuous web to presses of the one-sheet-after-another kind |
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