GB221047A - Improvements in rotary web offset printing machines - Google Patents

Improvements in rotary web offset printing machines

Info

Publication number
GB221047A
GB221047A GB1805823A GB1805823A GB221047A GB 221047 A GB221047 A GB 221047A GB 1805823 A GB1805823 A GB 1805823A GB 1805823 A GB1805823 A GB 1805823A GB 221047 A GB221047 A GB 221047A
Authority
GB
United Kingdom
Prior art keywords
bars
cylinder
offset
cylinders
adjustable
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
GB1805823A
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 GB1805823A priority Critical patent/GB221047A/en
Publication of GB221047A publication Critical patent/GB221047A/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
    • B41F13/08—Cylinders
    • B41F13/24—Cylinder-tripping devices; Cylinder-impression adjustments
    • B41F13/26—Arrangement of cylinder bearings
    • B41F13/28—Bearings mounted eccentrically of the cylinder axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Abstract

221,047. Linotype & Machinery, Ltd., and Goulding, B. J. J. July 12,1923. Tripping-arrangements.-In an offset printing- machine an offset cylinder 5 is mounted so as to be adjustable relatively to a forme cylinder 1 and a corresponding offset cylinder 5<1> or a direct acting forme cylinder. The cylinder 5 is angularly adjustable about the axis of cylinder 1 and is radially adjustable towards and away from that axis. In the machine shown, perfected offset impressions are obtained from the cylinders 5, 5', and these are mounted in pairs of radius bars 4 pivoted coaxially with the fixed axes 2 of the forme cylinders 1. For printing webs of different thicknesses, the bars 4 are angularly adjustable about the axes 2 by means of turnbuckles 6, the bars 4 being held in adjusted position by bolts 8 threaded into the machine frame and passing through slots 7 in the bars. The cylinders 5 are mounted in bearing blocks 9 which are capable of being moved in radial slots in the bars 4 by means of set-screws 11 to adjust the machine for offset blankets 12 of different sizes. To trip the cylinders 5 out of printing position eccentric bearings 14 mounted in the blocks 9 are capable of operation. by adjustable lever-and-link mechanism 17, 18, 19, 21, 22, operable by a hand-lever for simultaneous operation, or capable of independent operation for each cylinder. This mechanism is so arranged that the levers 19 are held by stops 26 in the operative position, and in this position the levers are in their dead centre position. The links 17 are detached from the arms 15 of the eccentrics 14 while adjusting the bars 4, and the eccentrics 14 are held fixed during the adjustment of the bars by a locking-pin insulated in a hole 27 in the eccentric and a hole in the bearing- block 9. The turnbuckles 6 may be operated for simultaneous coarse adjustment by helical gearing which is so arranged as to permit of individual fir.e adjustment of each turnbuckle.
GB1805823A 1923-07-12 1923-07-12 Improvements in rotary web offset printing machines Expired GB221047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1805823A GB221047A (en) 1923-07-12 1923-07-12 Improvements in rotary web offset printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1805823A GB221047A (en) 1923-07-12 1923-07-12 Improvements in rotary web offset printing machines

Publications (1)

Publication Number Publication Date
GB221047A true GB221047A (en) 1924-09-04

Family

ID=10105917

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1805823A Expired GB221047A (en) 1923-07-12 1923-07-12 Improvements in rotary web offset printing machines

Country Status (1)

Country Link
GB (1) GB221047A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290361A (en) * 1980-01-11 1981-09-22 American Newspaper Publishers Association On the fly adjusting mechanism for rotary printing presses
US5868071A (en) * 1997-09-02 1999-02-09 Goss Graphic Systems, Inc. Variable cutoff printing press

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290361A (en) * 1980-01-11 1981-09-22 American Newspaper Publishers Association On the fly adjusting mechanism for rotary printing presses
US5868071A (en) * 1997-09-02 1999-02-09 Goss Graphic Systems, Inc. Variable cutoff printing press

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