GB221049A - Improvements in rotary web offset printing presses - Google Patents

Improvements in rotary web offset printing presses

Info

Publication number
GB221049A
GB221049A GB1806523A GB1806523A GB221049A GB 221049 A GB221049 A GB 221049A GB 1806523 A GB1806523 A GB 1806523A GB 1806523 A GB1806523 A GB 1806523A GB 221049 A GB221049 A GB 221049A
Authority
GB
United Kingdom
Prior art keywords
web
rollers
printing
offset
arms
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
GB1806523A
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.)
Linotype and Machinery Ltd
Original Assignee
Linotype and Machinery 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 Linotype and Machinery Ltd filed Critical Linotype and Machinery Ltd
Priority to GB1806523A priority Critical patent/GB221049A/en
Publication of GB221049A publication Critical patent/GB221049A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

221,049. Linotype & Machinery, Ltd., and Goulding, B. J. J. July 12, 1923. Rotary offset machines.-Rotary web offset printing-machines are constructed so that the web is maintained taut while it is passing between the printing-couple whether the members of the couple are in printing or tripped relationship, the means. for effecting this acting independently of the webfeed devices which pull the web from the reel or feed it to the folding and delivery apparatus. The web 7, Fig. 1, passes between offset cylinders 5, 6 receiving impressions from forme cylinders 15, and is kept taut by rollers 9, 10 mounted in spring-pressed arms 8, which press the web against fixed rollers 1, 2 arranged on opposite sides of the printing line and acting on opposite sides of the web. The arms 8 are pivoted coaxially with the rollers 1, 2, and may be acted on by weights instead of springs. In a modification, Fig. 2, the web 7 is kept taut by positivelydriven sectional rollers 18, 19, which are adjustable laterally so as to act on the margins of the printed web, and corresponding rollers 23, 24 mounted on spring-pressed arms. The rollers 18, 19 are driven at the speed of the printing-rollers by gears 21, 22.
GB1806523A 1923-07-12 1923-07-12 Improvements in rotary web offset printing presses Expired GB221049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1806523A GB221049A (en) 1923-07-12 1923-07-12 Improvements in rotary web offset printing presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1806523A GB221049A (en) 1923-07-12 1923-07-12 Improvements in rotary web offset printing presses

Publications (1)

Publication Number Publication Date
GB221049A true GB221049A (en) 1924-09-04

Family

ID=10106032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1806523A Expired GB221049A (en) 1923-07-12 1923-07-12 Improvements in rotary web offset printing presses

Country Status (1)

Country Link
GB (1) GB221049A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255420A (en) * 1989-12-26 1993-10-26 Komori Corporation Plate replacing apparatus for a printing press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5255420A (en) * 1989-12-26 1993-10-26 Komori Corporation Plate replacing apparatus for a printing press

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