GB201694A - Improvements in or relating to printing machines - Google Patents

Improvements in or relating to printing machines

Info

Publication number
GB201694A
GB201694A GB1504622A GB1504622A GB201694A GB 201694 A GB201694 A GB 201694A GB 1504622 A GB1504622 A GB 1504622A GB 1504622 A GB1504622 A GB 1504622A GB 201694 A GB201694 A GB 201694A
Authority
GB
United Kingdom
Prior art keywords
web
rollers
wheel
roller
platen
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
GB1504622A
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
Priority to GB1504622A priority Critical patent/GB201694A/en
Publication of GB201694A publication Critical patent/GB201694A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
    • B41F1/26—Details
    • B41F1/28—Sheet-conveying, -aligning or -clamping devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)

Abstract

201,694. Harries, A. W. May 29, 1922. Platen machines ; set-off, preventing.-In a web-printing platen machine, the web i is drawn intermittently from the supply roll i<1> across the typebed c by geared rollers j, k, the shaft of the roller j having a spur wheel s engaged by a driving-wheel o which has no teeth on a portion r of its circumference. The wheel q is driven by a sprocket o, chain n, and pinion p from the main shaft of the machine. Tension is applied to the web between the supply roll and platen press by a device x consisting of springs 3 carried by a bar 4, the paper passing between the free ends 7 of the springs and a fixed bar 8. A wiper or doctor 17 is applied to the surface of the roller k to remove any ink collecting thereon. Fig. 3 shows modified feed-rollers 18, 19 with portions 23 of their surfaces raised. The feedrollers revolve continuously but the web is fed only during the time the raised segments 23 are in contact, so that by angularly adjusting the top roller the length of web fed at each revolution of the rollers may be varied.
GB1504622A 1922-05-29 1922-05-29 Improvements in or relating to printing machines Expired GB201694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1504622A GB201694A (en) 1922-05-29 1922-05-29 Improvements in or relating to printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1504622A GB201694A (en) 1922-05-29 1922-05-29 Improvements in or relating to printing machines

Publications (1)

Publication Number Publication Date
GB201694A true GB201694A (en) 1923-08-09

Family

ID=10052078

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1504622A Expired GB201694A (en) 1922-05-29 1922-05-29 Improvements in or relating to printing machines

Country Status (1)

Country Link
GB (1) GB201694A (en)

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