GB1197508A - Improvements relating to Damping Systems for Offset Printing Machines - Google Patents

Improvements relating to Damping Systems for Offset Printing Machines

Info

Publication number
GB1197508A
GB1197508A GB49657/67A GB4965767A GB1197508A GB 1197508 A GB1197508 A GB 1197508A GB 49657/67 A GB49657/67 A GB 49657/67A GB 4965767 A GB4965767 A GB 4965767A GB 1197508 A GB1197508 A GB 1197508A
Authority
GB
United Kingdom
Prior art keywords
roller
rollers
damping
doctor
inking
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
GB49657/67A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1197508A publication Critical patent/GB1197508A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B41F7/36—Inking-rollers serving also to apply ink repellants
    • 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
    • B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor

Landscapes

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

Abstract

1,197,508. Printing-apparatus. WINKLER & DUNNEBIER MASCHINENFABRIK UND EISENGIESSEREI K.G. 1 Nov., 1967 [5 Dec., 1966], No. 49657/67. Heading B6C. An offset printing machine comprises a plate cylinder 18, an inking mechanism including at least two friction drums 12, 15, each of which runs in contact with at least one of three forme inking rollers 13, 16, 17, a fountain roller 25 adapted to rotate in a damping fountain 23, a doctor roller 26 co-operating with the roller 25, and a transfer roller 42 downstream of the doctor roller 26 and arranged to engage either the first of the friction drums 12, 15, in the embodiment of Fig. 3, when considered in the direction of rotation of the forme cylinder or an intermediate roller (14), in the embodiment of Fig. 1 (not shown) which engages both of the friction drums. If narrow paper is to be printed additional doctor rollers 28 engaging only the ends of the roller 25 may be provided. In addition, air blasts may be obliquely directed towards the ends of the roller 25 by a plurality of individually adjustable nozzles 47 to prevent excessive damping of these regions of the roller. The damping mechanism may be adjustably pivoted to disengage the rollers 25 and 42 by means of eccentrics 40 and screws 38 enable the pressure between the said rollers to be adjusted. The roller 42 is mounted on eccentric bearings 43. The shafts of the rollers 26, 28 are mounted in slidable bearings which may be adjusted in position against spring pressure. Fig. 1 depicts an alternative device having a generally horizontal inking train as opposed to the generally vertical one shown in Fig. 3.
GB49657/67A 1966-12-05 1967-11-01 Improvements relating to Damping Systems for Offset Printing Machines Expired GB1197508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0042909 1966-12-05

Publications (1)

Publication Number Publication Date
GB1197508A true GB1197508A (en) 1970-07-08

Family

ID=7603442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49657/67A Expired GB1197508A (en) 1966-12-05 1967-11-01 Improvements relating to Damping Systems for Offset Printing Machines

Country Status (3)

Country Link
US (1) US3431842A (en)
DE (1) DE1561113A1 (en)
GB (1) GB1197508A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944223A (en) * 1988-05-16 1990-07-31 Ryobi Ltd. Mechanism for continuously supplying dampening medium in offset printing machine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302261C3 (en) * 1973-01-18 1981-04-23 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg Inking unit for a rotary printing press
US4044674A (en) * 1974-07-24 1977-08-30 Smith R.P.M. Corporation Spray dampening system for high quality offset printing
DE3232780C2 (en) * 1981-10-31 1986-02-06 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Inking unit for offset printing machines
IT1205429B (en) * 1981-12-15 1989-03-23 Luigi Ghisalberti WASHING METHOD AND DEVICE IN THE OFFSET PRINT
US4463674A (en) * 1982-06-01 1984-08-07 Becker Michael T Mounting means for a water unit to a printing press
DE3731768C1 (en) * 1987-09-22 1989-03-23 Heidelberger Druckmasch Ag Dampening unit for rotary offset printing machines
US4949637A (en) * 1987-12-10 1990-08-21 Keller James J Self-metering dampening system for a lithographic press
US5778781A (en) * 1997-04-04 1998-07-14 F. L. Smithe Machine Company, Inc. Method and apparatus for printing on opposite sides of a web

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1364257A (en) * 1918-04-20 1921-01-04 Alfred D Hunt Dampening-regulator for lithographic presses
US1566800A (en) * 1924-04-21 1925-12-22 Charles Eneu Johnson And Compa Device for offset prevention and surface finishing in printing
US2043995A (en) * 1932-09-12 1936-06-16 John G Goedike Method of and means for dampening printing surfaces of planographic and analogous presses
US2002815A (en) * 1932-11-19 1935-05-28 Harris Seybold Potter Co Dampening mechanism for printing-presses
US2332385A (en) * 1941-07-03 1943-10-19 Minnesota & Ontario Paper Co Apparatus for coating
US2322533A (en) * 1941-10-17 1943-06-22 Charles W Mayer Coating machine
US2689522A (en) * 1949-10-11 1954-09-21 Addressograph Multigraph Inking and moistening means for rotary planographic printing machines
US3038405A (en) * 1959-12-04 1962-06-12 Harris Intertype Corp Lithographic dampening device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944223A (en) * 1988-05-16 1990-07-31 Ryobi Ltd. Mechanism for continuously supplying dampening medium in offset printing machine

Also Published As

Publication number Publication date
US3431842A (en) 1969-03-11
DE1561113A1 (en) 1970-02-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees