GB791911A - Improvements in or relating to offset printing machines - Google Patents
Improvements in or relating to offset printing machinesInfo
- Publication number
- GB791911A GB791911A GB1367456A GB1367456A GB791911A GB 791911 A GB791911 A GB 791911A GB 1367456 A GB1367456 A GB 1367456A GB 1367456 A GB1367456 A GB 1367456A GB 791911 A GB791911 A GB 791911A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gripper
- shaft
- feeler
- sheet
- arm
- 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
- 238000007645 offset printing Methods 0.000 title abstract 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/04—Tripping devices or stop-motions
- B41F33/14—Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
791,911. Feeding sheets; gripper-mechanism. GERICKE, E. May 3, 1956 [May 21, 1955], No. 13674/56. Classes 100(1) and 100(2) In an offset printing machine, each sheet is fed from a stack of paper to the impression cylinder and is seized by a gripping mechanism disposed on the cylinder, a feeler mechanism being adapted to separate the impression and transfer cylinders if the gripping mechanism fails to seize a sheet, and means is provided whereby the feeler mechanism positively controls the gripper mechanism. A gripper 1, Fig. 1, is mounted on a shaft 2 carrying an arm 3, and is urged to sheetclamping position by a spring 10. Feeler fingers 4 on a shaft 5 move inwards under the action of a spring 11 to trip the impression cylinder if there is no sheet in the gripper. When the feeler fingers are moved outward by a stationary cam 8, a pin 7 on a lever arm 6 mounted on the shaft 5 engages the arm 6 to open the gripper. In another form, Fig. 5, the gripper 1 is mounted loosely on the shaft 9 to which the feeler fingers are hinged. The shaft 9 also carries a cam 17 spaced from the gripper 1 when the feeler fingers are closed, so that.when the latter are opened the gripper is also opened after a delay.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG17213A DE1001689B (en) | 1955-05-21 | 1955-05-21 | Device for releasing in the event of faulty sheet feed on an offset and duplicating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB791911A true GB791911A (en) | 1958-03-12 |
Family
ID=7120806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1367456A Expired GB791911A (en) | 1955-05-21 | 1956-05-03 | Improvements in or relating to offset printing machines |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE547341A (en) |
| CH (1) | CH341840A (en) |
| DE (1) | DE1001689B (en) |
| FR (1) | FR1148258A (en) |
| GB (1) | GB791911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6976427B2 (en) | 2002-11-07 | 2005-12-20 | Heidelberger Druckmaschinen Ag | Gripper system |
-
0
- BE BE547341D patent/BE547341A/xx unknown
-
1955
- 1955-05-21 DE DEG17213A patent/DE1001689B/en active Pending
-
1956
- 1956-04-12 CH CH341840D patent/CH341840A/en unknown
- 1956-04-28 FR FR1148258D patent/FR1148258A/en not_active Expired
- 1956-05-03 GB GB1367456A patent/GB791911A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6976427B2 (en) | 2002-11-07 | 2005-12-20 | Heidelberger Druckmaschinen Ag | Gripper system |
Also Published As
| Publication number | Publication date |
|---|---|
| BE547341A (en) | |
| DE1001689B (en) | 1957-01-31 |
| FR1148258A (en) | 1957-12-05 |
| CH341840A (en) | 1959-10-31 |
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