GB392326A - Improvements in or relating to offset litho and letter-press printing machines - Google Patents

Improvements in or relating to offset litho and letter-press printing machines

Info

Publication number
GB392326A
GB392326A GB774232A GB774232A GB392326A GB 392326 A GB392326 A GB 392326A GB 774232 A GB774232 A GB 774232A GB 774232 A GB774232 A GB 774232A GB 392326 A GB392326 A GB 392326A
Authority
GB
United Kingdom
Prior art keywords
nozzle
paper
brush
cylinder
printing
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
GB774232A
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.)
Cooperative Wholesale Society Ltd
Original Assignee
Cooperative Wholesale Society Ltd
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 Cooperative Wholesale Society Ltd filed Critical Cooperative Wholesale Society Ltd
Priority to GB774232A priority Critical patent/GB392326A/en
Publication of GB392326A publication Critical patent/GB392326A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

392,326. Printing-machines. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., 1, Balloon Street, and MARSHALL, H. E., 9, Delamere Road, Levenshulme, both in Manchester. March 16, 1932, No. 7742. [Class 100 (ii).] Dust, fluff, and the like, collecting.-In an offset lithographic or letterpress printing machine, grit or foreign matter is removed from the surface of the paper prior to the printing operation by means of a flared suction nozzle c, arranged near to but not in contact with the paper, and a brush h<1> or strip of plush, which contacts lightly with the paper. The nozzle c and brush h<1> are connected by legs d to arms e on a shaft f, which is preferably oscillated by an adjustable cam so as to move the nozzle away from the impression cylinder a when a sheet is not passing. A second brush h<2> may be carried by the shaft f to act on the sheet prior to the nozzle c, and a tray or scoop q is preferably fitted below the nozzle to receive pieces of paper &c. The nozzle c is curved to the shape of the cylinder at its front end and extends right across the cylinder, and its rear fish-shaped part is connected by an elbow pipe C<3> and a flexible connection to an exhaust pump fitted with an air filter, the pump being preferably driven from the printing machine. As applied to a flat-bed letterpress machine the nozzle is supported from upright brackets d<1>, Fig. 6, to which the nozzle is rigidly secured ; or the nozzle may be carried by an oscillating shaft mounted in these brackets.
GB774232A 1932-03-16 1932-03-16 Improvements in or relating to offset litho and letter-press printing machines Expired GB392326A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB774232A GB392326A (en) 1932-03-16 1932-03-16 Improvements in or relating to offset litho and letter-press printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB774232A GB392326A (en) 1932-03-16 1932-03-16 Improvements in or relating to offset litho and letter-press printing machines

Publications (1)

Publication Number Publication Date
GB392326A true GB392326A (en) 1933-05-18

Family

ID=9838840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB774232A Expired GB392326A (en) 1932-03-16 1932-03-16 Improvements in or relating to offset litho and letter-press printing machines

Country Status (1)

Country Link
GB (1) GB392326A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961952A (en) * 1956-09-28 1960-11-29 J E Doyle Company Method of and apparatus for cleaning and controlling paper in printing presses
DE3601539A1 (en) * 1985-01-22 1986-07-24 Gary C. St. Louis Mo. Glanzner DEVICE FOR CLEANING THE TRANSFER CYLINDER OF A PRINT PRESS
US4905596A (en) * 1987-10-17 1990-03-06 Man Roland Druckmaschinen Ag Combined cleaning and safety device for printing cylinder
US5438923A (en) * 1993-01-25 1995-08-08 Koenig & Bauer Aktiengesellschaft Method and apparatus for the prevention of aerosol deposits in a rotary printing press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961952A (en) * 1956-09-28 1960-11-29 J E Doyle Company Method of and apparatus for cleaning and controlling paper in printing presses
DE3601539A1 (en) * 1985-01-22 1986-07-24 Gary C. St. Louis Mo. Glanzner DEVICE FOR CLEANING THE TRANSFER CYLINDER OF A PRINT PRESS
US4905596A (en) * 1987-10-17 1990-03-06 Man Roland Druckmaschinen Ag Combined cleaning and safety device for printing cylinder
US5438923A (en) * 1993-01-25 1995-08-08 Koenig & Bauer Aktiengesellschaft Method and apparatus for the prevention of aerosol deposits in a rotary printing press

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