GB221723A - Improvements in rotary off-set printing machines - Google Patents
Improvements in rotary off-set printing machinesInfo
- Publication number
- GB221723A GB221723A GB251324A GB251324A GB221723A GB 221723 A GB221723 A GB 221723A GB 251324 A GB251324 A GB 251324A GB 251324 A GB251324 A GB 251324A GB 221723 A GB221723 A GB 221723A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulleys
- cylinder
- sheets
- sheet
- tapes
- 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
- B41F7/00—Rotary lithographic machines
- B41F7/02—Rotary lithographic machines for offset printing
- B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
- B41F7/06—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs for printing on sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
221,723. Fallot, A. Jan. 31, 1924. Rotary offset machines. - In a rotary offset machine of the kind in which an offset cylinder as a coacting with an impression cylinder b of half its diameter is formed with a sheet-carrying surface a<1> which takes the sheet and delivers it printed side up to a delivery device arranged beneath the printing-cylinder c is constructed with suction orifices h, c in the surface a<1> for holding the sheet in position as it is carried by this surface, and the sheets are stripped from the cylinder a by strippers g, or are blown off by compressed air, and are delivered in a pile by a drop-sheet delivery device. The sheets are fed to the impression cylinder b by grippers d, and the plate cylinder c is fitted with damping- rollers f, and inking-rollers e spaced apart sufficiently to permit of the hand-wiping of the printing-plate. Delivery apparatus. - The printed sheets are received by tapes t<1> passing over pulleys i, k driven in the same direction and speed as the cylinder a. The pulleys are mounted in arms s, s<1> which are oscillated to cause descent of the tapes t to deposit the sheets on tapes T passing over fixed pulleys j, j<1> and pulleys l, m carried by a sliding rack z which is reciprocated by a crank x which reciprocates a wheel r in gear with a fixed rack y, a wheel r<1> on the shaft of wheel r engaging the rack z. As the pulleys l, m move to the left they are held against rotation by pawls, and the pulleys j, j<1> rotate, but on the reverse movement only the pulleys l, m rotate, and the sheets are thus dropped on to the pile. Specification 13793/15 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB251324A GB221723A (en) | 1924-01-31 | 1924-01-31 | Improvements in rotary off-set printing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB251324A GB221723A (en) | 1924-01-31 | 1924-01-31 | Improvements in rotary off-set printing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB221723A true GB221723A (en) | 1924-09-18 |
Family
ID=9740882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB251324A Expired GB221723A (en) | 1924-01-31 | 1924-01-31 | Improvements in rotary off-set printing machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB221723A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0564856A1 (en) * | 1992-04-07 | 1993-10-13 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Method and device for varnishing and perfecting sheets in a varnishing and perfecting unit |
-
1924
- 1924-01-31 GB GB251324A patent/GB221723A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0564856A1 (en) * | 1992-04-07 | 1993-10-13 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Method and device for varnishing and perfecting sheets in a varnishing and perfecting unit |
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