GB910230A - A printing press - Google Patents
A printing pressInfo
- Publication number
- GB910230A GB910230A GB6305/60A GB630560A GB910230A GB 910230 A GB910230 A GB 910230A GB 6305/60 A GB6305/60 A GB 6305/60A GB 630560 A GB630560 A GB 630560A GB 910230 A GB910230 A GB 910230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- eccentric
- gaps
- bar
- throw
- 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
- B41F13/08—Cylinders
- B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
- B41F13/26—Arrangement of cylinder bearings
- B41F13/28—Bearings mounted eccentrically of the cylinder axis
-
- 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
- B41F33/08—Tripping devices or stop-motions for starting or stopping operation of cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
910,230. Printing-machines. HARRISINTERTYPE CORPORATION. Feb. 23, 1960 [March 2, 1959], No. 6305/60. Class 100 (2). Cylinder trips.-In a throw-on and throw-off mechanism for sheet-fed rotary offset printing- machines wherein the gaps of the cylinders are in registry with each other during a part of each rotation and one of the cylinders is movable between operative and inoperative positions, the retracting movement is initiated while the gaps are in registry at the printing line and the advance movement of the cylinder is initiated at a point in the rotation of the cylinders in advance of the point at which the throw-off movement is initiated and is completed after said point and before the trailing edges of the gap pass the printing line. The blanket cylinder 11 is thrown off the plate cylinder 10 by rotating an outer, eccentric 15 clockwise by moving upwardly along its length a shift bar 31, whereby through a bell-crank 32 and links 36, 37 a bracket 20 connected to the eccentric is shifted, the eccentric being adjustable by a turnbuckle connection 68 and the link 37. An inner eccentric 14 carries a bracket 18 connected to the bracket 20 by toggle links 22, 23, whereby the eccentric 14 rotates with the eccentric 15. The cylinder 11 is thrown off the impression cylinder 12 by rotating the eccentric 14 clockwise with respect to the eccentric 15, by moving a shift bar 30 downwardly along its length so as to move a toggle link 28 to the left. The pressure of the blanket cylinder against the impression cylinder is adjustable by rotating manually a shaft 136, which through an expansible drive 130, 126 and an arm 121 adjusts the relative position of the eccentrics. The bar 31 is moved upwards by a pin 47 engaging a notch in its left side, and downwards by a pin 48 engaging a notch 61 in its right side, while the bar 30 is similarly controlled by pins 72, 74. The pins are actuated by cams 46, 77 on the plate and impression cylinder shafts. The bar 31 is moved about its pivoted lower end into the path of either the pin 47 or the pin 48 by a rod 62 under manual control or under automatic control when a malfunction of the press is occurring. The bracket 20 is connected by a yieldable device 90 to the bar 30, so that when the eccentric 15 is moved to throw-off position, the bar 30 is moved into the path of the pin 72. The cylinders are provided with gaps 13. The arrangement is such that the cylinder 11 is first thrown off the cylinder 10 and then off the cylinder 12, and is also thrown on to first the cylinder 10 and then the cylinder 12. The cams are so constructed and mounted that the working strokes of the throw-on pins 48, 74 are initiated before the gaps have met and completed after the middle of the gaps have passed each other, while the working strokes of the throw-off pins 47, 72 are initiated after the gaps have met but before the middle of the gaps have passed each other and completed after the gaps have passed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US796444A US3030884A (en) | 1959-03-02 | 1959-03-02 | Printing press throwoff mechanism and method |
Publications (1)
Publication Number | Publication Date |
---|---|
GB910230A true GB910230A (en) | 1962-11-14 |
Family
ID=25168205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6305/60A Expired GB910230A (en) | 1959-03-02 | 1960-02-23 | A printing press |
Country Status (4)
Country | Link |
---|---|
US (1) | US3030884A (en) |
CH (1) | CH382765A (en) |
DE (1) | DE1411127A1 (en) |
GB (1) | GB910230A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3234874A (en) * | 1963-04-05 | 1966-02-15 | Armstrong Cork Co | Rotary transfer cylinder interrupter responsive to varying cylinder speeds |
US3223028A (en) * | 1963-06-03 | 1965-12-14 | Sun Chemical Corp | Interchangeable inking unit for multi-color presses |
DE1238488B (en) * | 1964-06-25 | 1967-04-13 | Roland Offsetmaschf | Device for turning on and off the blanket cylinder of a three-cylinder offset printing machine |
US3334583A (en) * | 1965-08-09 | 1967-08-08 | Toledo Scale Corp | Ticket printing and issuing machine |
US3800698A (en) * | 1973-06-28 | 1974-04-02 | Harris Intertype Corp | Disconnect arrangement for multi-unit printing press |
US4301728A (en) * | 1980-02-11 | 1981-11-24 | American Newspaper Publishers Association | Rotary printing press with a bumping mechanism |
JPS56120353A (en) * | 1980-02-28 | 1981-09-21 | Komori Printing Mach Co Ltd | Change-over mechanism for shift roller in ink and water feeder for printer |
JPS57212063A (en) * | 1981-06-23 | 1982-12-27 | Dainippon Screen Mfg Co Ltd | Pitting device for impression cylinder to printing plate cylinder |
DD260893A1 (en) * | 1987-06-22 | 1988-10-12 | Polygraph Leipzig | ADJUSTMENT AND STOPPING DEVICE FOR THE RUBBER CYLINDER OF A FOUR CYLINDER PRESSURE PUSH FOR A ROLL ROTATION OFFSET PRINTING MACHINE |
CS277070B6 (en) * | 1989-12-22 | 1992-11-18 | Adamovske Strojirny Np | Device for the control of printing pressures |
US11479139B2 (en) | 2015-09-11 | 2022-10-25 | Invertedpower Pty Ltd | Methods and systems for an integrated charging system for an electric vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1193045A (en) * | 1916-08-01 | miles | ||
US1582039A (en) * | 1922-04-01 | 1926-04-27 | Harris Automatic Press Co | Printing press |
US2773445A (en) * | 1953-03-19 | 1956-12-11 | Harris Seybold Co | Throwoff mechanism for printing presses |
US2853943A (en) * | 1953-12-15 | 1958-09-30 | Harris Intertype Corp | Plate cylinder and inking roller throwoffs |
US2860577A (en) * | 1956-09-26 | 1958-11-18 | Dick Co Ab | Cylinder separating mechanism for duplicators |
-
1959
- 1959-03-02 US US796444A patent/US3030884A/en not_active Expired - Lifetime
-
1960
- 1960-02-23 GB GB6305/60A patent/GB910230A/en not_active Expired
- 1960-03-01 DE DE19601411127 patent/DE1411127A1/en active Pending
- 1960-03-02 CH CH237160A patent/CH382765A/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE1411127A1 (en) | 1968-10-03 |
CH382765A (en) | 1964-10-15 |
US3030884A (en) | 1962-04-24 |
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