GB812746A - Method and mechanism for applying dampening material for printing machines - Google Patents

Method and mechanism for applying dampening material for printing machines

Info

Publication number
GB812746A
GB812746A GB607/57A GB60757A GB812746A GB 812746 A GB812746 A GB 812746A GB 607/57 A GB607/57 A GB 607/57A GB 60757 A GB60757 A GB 60757A GB 812746 A GB812746 A GB 812746A
Authority
GB
United Kingdom
Prior art keywords
roller
dampening
rollers
cylinder
fluid
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
GB607/57A
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.)
Harris Corp
Original Assignee
Harris Intertype Corp
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 Harris Intertype Corp filed Critical Harris Intertype Corp
Publication of GB812746A publication Critical patent/GB812746A/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
    • B41F7/30—Damping devices using spraying elements

Landscapes

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

Abstract

The method of applying dampening fluid to the cylinder of a printing machine as described in the parent Specification is modified in that the dampening liquid instead of being applied directly to the plate cylinder is applied to a dampening roller or one of the rollers of the inking mechanism. As shown, a lithographic printing machine comprises a plate cylinder 10, offset cylinder 11 and impression cylinder 12. Inking rollers 16, 17, fed from an ink fountain 18 and dampening rollers 25, 26, are provided. The dampening fluid is contained in a housing 22 in which a fog of finely divided particles is created by opposed nozzles 27, 28. A wire 19 is provided in a shield 23 to which the fluid particles gain access through an opening 24. The <PICT:0812746/III/1> wire 19 extends parallel to the longitudinal axis of the roller 26. The wire 19 is charged to a high positive potential and the roller 26 is electrically grounded, so as to cause the fluid particles to be impelled towards the roller 26. Alternatively the dampening rollers 25, 26 may be dispensed with and the dampening apparatus provided adjacent the first inking roller 16, or the first roller 16 and the roller 17. In this case the rollers 16 and 17 are electrically grounded.
GB607/57A 1956-04-11 1957-01-07 Method and mechanism for applying dampening material for printing machines Expired GB812746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US812746XA 1956-04-11 1956-04-11

Publications (1)

Publication Number Publication Date
GB812746A true GB812746A (en) 1959-04-29

Family

ID=22163158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB607/57A Expired GB812746A (en) 1956-04-11 1957-01-07 Method and mechanism for applying dampening material for printing machines

Country Status (1)

Country Link
GB (1) GB812746A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1627737A1 (en) * 2004-08-17 2006-02-22 MAN Roland Druckmaschinen AG Printing unit as well as damping unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1627737A1 (en) * 2004-08-17 2006-02-22 MAN Roland Druckmaschinen AG Printing unit as well as damping unit

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