GB1217740A - Improvements in rotary offset printing presses - Google Patents

Improvements in rotary offset printing presses

Info

Publication number
GB1217740A
GB1217740A GB27691/68A GB2769168A GB1217740A GB 1217740 A GB1217740 A GB 1217740A GB 27691/68 A GB27691/68 A GB 27691/68A GB 2769168 A GB2769168 A GB 2769168A GB 1217740 A GB1217740 A GB 1217740A
Authority
GB
United Kingdom
Prior art keywords
cylinder
rollers
roller
engagement
cylinders
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
Application number
GB27691/68A
Inventor
James Burton Roozee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vandercook and Sons Inc
Original Assignee
Vandercook and Sons Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Vandercook and Sons Inc filed Critical Vandercook and Sons Inc
Publication of GB1217740A publication Critical patent/GB1217740A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/301—Devices for tripping and adjusting form rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/302—Devices for tripping inking devices as a whole
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Abstract

1,217,740. Printing apparatus. VANDERCOOK & SONS Inc. 11 June, 1968 [11 July, 1967], No. 27691/68. Heading B6C. A multi-colour rotary offset printing press comprises a plate cylinder 56, divided into a plurality of segments each of which may bear a printing plate, a blanket cylinder 57 of the same diameter as the plate cylinder 56 and a papercarrying impression cylinder 58 which during a single revolution of cylinders 56 and 57 revolves as many times as there are segments on cylinder 56. Each segment on plate cylinder 56 has its own inking system and dampening system. Cam-operated trips are provided whereby the inking and dampening systems 69-72 and 76- 79 contact only their own segments of plate cylinder 56. Blanket cylinder 57 may be tripped and held out of engagement with plate cylinder 56 as a segment of cylinder 56 from which it is not desired to print passes through what would otherwise be the nip of cylinders 56 and 57, and impression cylinder 58 may correspondingly be tripped out of engagement with blanket cylinder 57. Both these actions are actuated by cams on blanket cylinder 57, and in normal operation the cylinders are tripped and returned as each segment of cylinder 56, or corresponding portion of cylinder 57, nears the relevant nip. When it is desired to hold the cylinders in their trip positions electromechanical latches are operated. Electromechanical latches are also employed to hold inking and dampening apparatus out of engagement with their respective segments of plate cylinder 56 if a segment is not to be printed from. Gears and chains synchronize the various cylinders and trips. Preferably plate cylinder 56 has four segments, each of which prints a different colour when all are in use. Each inking system 69-72 incorporates a fountain roller 91, wiped by a blade, a messenger roller 92 and axially reciprocated rollers 84 and 86, together with frame rollers 80-83 and other, fixedaxis, rollers. Means are provided for varying period during which messenger roller 92 contacts fountain roller 91, and for locking messenger roller 92 out of contact with fountain roller 91. The rollers 84, 86 are reciprocated by engagement of a follower with a grooved shaft. Similarly each dampening system 76-79 comprises a fountain roller 97, a messenger roller 98 an axially oscillated roller 98 and frame rollers 93, 94. The fountain rollers 97 are rotated by individual variable speed electric motors and the rollers 98 are oscillated by engagement of grooved collars on their shafts with fixed rollers.
GB27691/68A 1967-07-11 1968-06-11 Improvements in rotary offset printing presses Expired GB1217740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65245267A 1967-07-11 1967-07-11

Publications (1)

Publication Number Publication Date
GB1217740A true GB1217740A (en) 1970-12-31

Family

ID=24616882

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27691/68A Expired GB1217740A (en) 1967-07-11 1968-06-11 Improvements in rotary offset printing presses

Country Status (4)

Country Link
US (1) US3536006A (en)
DE (1) DE1761815B2 (en)
FR (1) FR1572857A (en)
GB (1) GB1217740A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658362A1 (en) * 1976-12-23 1978-06-29 Hinapat Ag MACHINE FOR THE TREATMENT OF HOLLOW WORKPIECES, FOR EXAMPLE TUBES

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011812A (en) * 1972-10-26 1977-03-15 Manuel Julian Lecha Machine for printing different colors simultaneously by the offset method
US4119093A (en) * 1976-09-24 1978-10-10 Goodman Floyd G Integral patient-limb surgical drape system
DE2932887C2 (en) * 1979-08-14 1982-04-22 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Rotary printing machine with a device for preventing cylinder movements
US4438694A (en) * 1980-09-03 1984-03-27 Crosfield Electronics Limited Gravure color printing press
DE3213540C2 (en) * 1981-04-28 1985-05-09 Dainippon Screen Manufacturing Co., Ltd., Kyoto Rotary printing machine for printing with highly viscous inks
DE3623590A1 (en) * 1986-07-12 1988-02-04 Miller Johannisberg Druckmasch FILM DAMPING UNIT FOR OFFSET PRINTING MACHINES
DE3907584A1 (en) * 1989-03-09 1990-09-13 Heidelberger Druckmasch Ag METHOD FOR HUMIDITY CONTROL IN AN OFFSET PRINTING MACHINE
US5520113A (en) * 1989-03-09 1996-05-28 Heidelberger Druckmaschinen Ag Method of regulating dampening medium
US5178678A (en) * 1989-06-13 1993-01-12 Dahlgren International, Inc. Retractable coater assembly including a coating blanket cylinder
US5623873A (en) * 1995-02-05 1997-04-29 Ryobi Limited Offset printing press
US5630363A (en) 1995-08-14 1997-05-20 Williamson Printing Corporation Combined lithographic/flexographic printing apparatus and process
EP0771646A3 (en) * 1995-10-31 1999-08-11 Dainippon Screen Mfg. Co., Ltd. Digital printer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2658362A1 (en) * 1976-12-23 1978-06-29 Hinapat Ag MACHINE FOR THE TREATMENT OF HOLLOW WORKPIECES, FOR EXAMPLE TUBES

Also Published As

Publication number Publication date
DE1761815B2 (en) 1977-06-08
DE1761815A1 (en) 1971-08-26
FR1572857A (en) 1969-06-27
US3536006A (en) 1970-10-27

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