GB235269A - Improvements appertaining to gripper mechanism for rotary printing machines - Google Patents
Improvements appertaining to gripper mechanism for rotary printing machinesInfo
- Publication number
- GB235269A GB235269A GB552524A GB552524A GB235269A GB 235269 A GB235269 A GB 235269A GB 552524 A GB552524 A GB 552524A GB 552524 A GB552524 A GB 552524A GB 235269 A GB235269 A GB 235269A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grippers
- bowl
- cam
- rod
- sector
- 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
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
Landscapes
- Dental Preparations (AREA)
Abstract
235,269. Waite, F., and Waite & Saville, Ltd. March 4, 1924. Gripper mechanism.-The impression cylinder of a printing-machine is fitted with grippers 2 geared to an oscillating sector 8 for opening and closing the grippers, and the sector 8 is operated by a bowl 8<a> running in a fixed cam groove 7<a> so arranged that the grippers are positively moved by the cam to the open position and also to a position near the gripping position, the final movement to effect the gripping of the sheet being effected under spring action. The sector 8 is pivoted to a spring-pressed rod 23, guided by a bracket 25, and the rod 23 tends constantly to keep the grippers closed. The shaft 2<a> of the grippers is acted on by a spring-pressed pivoted rod 24, which, when the grippers 2 are open, tends to keep them open, but reinforces the spring action of the rod 23 when the grippers are closed by the cam 7<a>. The cam surface 7<a> is designed to be as close as possible to the path in which the pivotal centre of the grippers travels. When it is desired to retain the sheet on the impression cylinder for more than one revolution, the operating-cam for the bowl 8<a> is formed with raised flanges 7, 7<b>, Fig. 8, between which is a space 7<a> in which the bowl' 8a passes when the grippers are to be opened. A pivoted member 7f is fitted with flanges c, c<1> for controlling the bowl 8<a>, and when the grippers are to remain closed for more than a revolution the member 7f is set by the cam 13 and lever connections shown in Fig. 3 to the position shown in Fig. 8 to permit the bowl 8<a> to move though an opening c<2> on to the outside of the flange 7b, and thus to cause the grippers to remain closed. The pivoted member 7f is then returned to the position shown in Fig,. 3, and on the next rotation the bowl 8<a> is guided by the flange c<1> into the inside of the flange 7b to allow the grippers to open. In the modification shown in Fig. 3, the gear sector 8 is controlled by an extension spring 21 secured to the impression cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB552524A GB235269A (en) | 1924-03-04 | 1924-03-04 | Improvements appertaining to gripper mechanism for rotary printing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB552524A GB235269A (en) | 1924-03-04 | 1924-03-04 | Improvements appertaining to gripper mechanism for rotary printing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB235269A true GB235269A (en) | 1925-06-04 |
Family
ID=9797827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB552524A Expired GB235269A (en) | 1924-03-04 | 1924-03-04 | Improvements appertaining to gripper mechanism for rotary printing machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB235269A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402266A (en) * | 1981-05-08 | 1983-09-06 | Komori Printing Machinery Co. Ltd. | Front lay device for sheet-fed rotary printing presses |
WO1998024628A1 (en) * | 1996-12-03 | 1998-06-11 | Kba-Planeta Ag | Gripper actuating cam |
CN103434267B (en) * | 2013-09-12 | 2015-05-13 | 上海光华印刷机械有限公司 | Gripper Ttransferring gripper mechanism of offset printing machine |
-
1924
- 1924-03-04 GB GB552524A patent/GB235269A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4402266A (en) * | 1981-05-08 | 1983-09-06 | Komori Printing Machinery Co. Ltd. | Front lay device for sheet-fed rotary printing presses |
WO1998024628A1 (en) * | 1996-12-03 | 1998-06-11 | Kba-Planeta Ag | Gripper actuating cam |
CN103434267B (en) * | 2013-09-12 | 2015-05-13 | 上海光华印刷机械有限公司 | Gripper Ttransferring gripper mechanism of offset printing machine |
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