GB918673A - Improvements in or relating to blanket tensioning means for the impression cylindersof rotary printing presses - Google Patents

Improvements in or relating to blanket tensioning means for the impression cylindersof rotary printing presses

Info

Publication number
GB918673A
GB918673A GB815960A GB815960A GB918673A GB 918673 A GB918673 A GB 918673A GB 815960 A GB815960 A GB 815960A GB 815960 A GB815960 A GB 815960A GB 918673 A GB918673 A GB 918673A
Authority
GB
United Kingdom
Prior art keywords
cylinder
bar
blanket
slot
rollers
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
GB815960A
Inventor
Charles Henry Skinner
William Gordon Robson
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.)
Vinters Armstrongs Ltd
Vinters Armstrongs Engineers Ltd
Original Assignee
Vickers Armstrongs Engineers Ltd
Vickers Armstrongs 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 Vickers Armstrongs Engineers Ltd, Vickers Armstrongs Ltd filed Critical Vickers Armstrongs Engineers Ltd
Priority to GB815960A priority Critical patent/GB918673A/en
Priority to CH275561A priority patent/CH365089A/en
Publication of GB918673A publication Critical patent/GB918673A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1237—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially perpendicular to support surface

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

918,673. Blanket cylinders. VICKERS ARMSTRONG (ENGINEERS) Ltd. Feb. 28, 1961 [March 8, 1960], No. 8159/60. Class 100 (2). Top and under blankets 12 and 11 are secured around an impression cylinder 10 by tensioning rollers 23, 24 disposed within the cylinder in association with a rotatable clamping bar 15 and a longitudinal cylinder slot 13. The rollers are corrugated in order to grip the ends of the top blanket 12 whilst the ends of the under blanket 11 are gripped respectively between the surface of the bar 15 and an inner surface of the cylinder and the surface of the bar 15 and a wall of the slot 13. Inwardly protruding pins 31 disposed along the cylinder assist the clamping of the blanket ends between the bar and the cylinder whilst to prevent undesirable flexing of the rollers they are cradled in arcuate shoes 28, 29 suitably spaced longitudinally of the cylinder. The rollers are rotated from a worm-wheel 26 through meshing gears 27 whilst rotation of the bar 15 is effected between two limiting positions regulated by a stop 21 by a lever which is attached to the squared end of the bar. The bar has a longitudinal slot through which the ends of the blanket 12 are passed after the under blanket 11 has been securedly attached to the cylinder by the bar. The latter is chamfered to provide faces 17 and 18 such that the blanket end to be secured between the bar and the cylinder may be easily inserted before being gripped on rotation of the bar. If the cylinder is intended for unidirectional rotation only one face 17 or 18 is necessary. More than one cylinder slot 13 with associated rollers and bar may be provided, in which case each slot would accommodate the ends of blankets which are adjacent one another around the cylinder.
GB815960A 1960-03-08 1960-03-08 Improvements in or relating to blanket tensioning means for the impression cylindersof rotary printing presses Expired GB918673A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB815960A GB918673A (en) 1960-03-08 1960-03-08 Improvements in or relating to blanket tensioning means for the impression cylindersof rotary printing presses
CH275561A CH365089A (en) 1960-03-08 1961-03-08 Printing Machine Rotary Printing Cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB815960A GB918673A (en) 1960-03-08 1960-03-08 Improvements in or relating to blanket tensioning means for the impression cylindersof rotary printing presses

Publications (1)

Publication Number Publication Date
GB918673A true GB918673A (en) 1963-02-13

Family

ID=9846893

Family Applications (1)

Application Number Title Priority Date Filing Date
GB815960A Expired GB918673A (en) 1960-03-08 1960-03-08 Improvements in or relating to blanket tensioning means for the impression cylindersof rotary printing presses

Country Status (1)

Country Link
GB (1) GB918673A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842000A1 (en) * 1978-09-27 1980-04-10 Heidelberger Druckmasch Ag DEVICE FOR TENSIONING THE RUBBER BLANKET ON THE RUBBER CYLINDER OF ROTARY PRINTING MACHINES
WO1992015457A1 (en) * 1991-03-07 1992-09-17 Heidelberger Druckmaschinen Ag Device for holding a printing plate or similar object on a cylinder of a rotary printing press
CN112839446A (en) * 2021-01-04 2021-05-25 杭州和裕电子科技有限公司 Flexible circuit board tensioning device and tensioning system thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2842000A1 (en) * 1978-09-27 1980-04-10 Heidelberger Druckmasch Ag DEVICE FOR TENSIONING THE RUBBER BLANKET ON THE RUBBER CYLINDER OF ROTARY PRINTING MACHINES
WO1992015457A1 (en) * 1991-03-07 1992-09-17 Heidelberger Druckmaschinen Ag Device for holding a printing plate or similar object on a cylinder of a rotary printing press
CN112839446A (en) * 2021-01-04 2021-05-25 杭州和裕电子科技有限公司 Flexible circuit board tensioning device and tensioning system thereof
CN112839446B (en) * 2021-01-04 2022-01-25 杭州和裕电子科技有限公司 Flexible circuit board tensioning device and tensioning system thereof

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