GB1036880A - Improvements in or relating to web-fed printing machines - Google Patents
Improvements in or relating to web-fed printing machinesInfo
- Publication number
- GB1036880A GB1036880A GB4430162A GB4430162A GB1036880A GB 1036880 A GB1036880 A GB 1036880A GB 4430162 A GB4430162 A GB 4430162A GB 4430162 A GB4430162 A GB 4430162A GB 1036880 A GB1036880 A GB 1036880A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roller
- shaft
- discs
- pair
- rollers
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
Abstract
1,036,880. Feeding webs. FORMMASTER Ltd. Nov. 25, 1963 [Nov. 23, 1962], No. 44301/62. Heading B6B. A web feeding device for a printing machine of the type described in Specification 950,053 comprises a pair of rotatable friction nip rollers, at least one of the pair being connected for driving and being readily interchangeable with a roller of different circumferential length. In the embodiment illustrated, Figs. 2 and 3, one of the pair of nip rollers 3 is mounted for rotation with a shaft 11 keyed to a driving shaft 16. The other of the pair of nip rollers is an idler roller spring biased against the driven roller 3. The shaft 11 is joumalled at 19 in a mounting block 20. With the aid of a knob 21, the mounting block 20 may be removed from its bayonettype connection, Fig. 3, comprising studs 22 and spring-loaded washers, Fig. 2. In this manner the shaft 11 and roller 3 may be removed for replacement by a shaft with a roller of different circumferential length. The nip rollers described above may be used as the feed-in and feed-out devices for the type of printing machine described in Specification 950,053, wherein they would be driven intermittently or continuously in synchronism with the printing rollers. In a modification (not illustrated), a set of two or more parallel rollers of different circumferential lengths are held in a turret which is rotatable to interchange the roller which cooperates with the spring biased idler roller forming the nip, the arrangement being that either the one co-operating with the idler roller or all of the rollers in the turret are driven. In a further embodiment (not illustrated) the driven roller may comprise a series of discs or wheels mounted for rotation with a shaft, the circumferential lengths of the discs or wheels increasing from the centre of the series, and the discs or wheels being relatively adjustable along the shaft. A selected pair of discs are adjusted to engage the web adjacent the edges. The idler roller may also be formed of a similar series of discs or wheels adjustable along the shaft thereof. Instead of different discs, a single member of tapering form adjustable along the shaft may be used to engage each margin of the web. An expandible roller or a roller to which pairs of semi-cylindrical shells may be added may be used instead of replacing the driven roller. The invention may be used in combination with that forming the subject matter of Specification 993,911.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4430162A GB1036880A (en) | 1962-11-23 | 1962-11-23 | Improvements in or relating to web-fed printing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4430162A GB1036880A (en) | 1962-11-23 | 1962-11-23 | Improvements in or relating to web-fed printing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1036880A true GB1036880A (en) | 1966-07-20 |
Family
ID=10432661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4430162A Expired GB1036880A (en) | 1962-11-23 | 1962-11-23 | Improvements in or relating to web-fed printing machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1036880A (en) |
-
1962
- 1962-11-23 GB GB4430162A patent/GB1036880A/en not_active Expired
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