GB352190A - Paper web tensioning means for reel-fed printing presses - Google Patents

Paper web tensioning means for reel-fed printing presses

Info

Publication number
GB352190A
GB352190A GB1665930A GB1665930A GB352190A GB 352190 A GB352190 A GB 352190A GB 1665930 A GB1665930 A GB 1665930A GB 1665930 A GB1665930 A GB 1665930A GB 352190 A GB352190 A GB 352190A
Authority
GB
United Kingdom
Prior art keywords
brake
driven
roller
machine
machines
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
GB1665930A
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 GB1665930A priority Critical patent/GB352190A/en
Publication of GB352190A publication Critical patent/GB352190A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/08—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on web roll being unwound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/08—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on web roll being unwound
    • B65H23/085—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on web roll being unwound and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4137—Supporting web roll on its outer circumference

Landscapes

  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

352,190. Printing-machines. JAMES, H. V., Cintra, Watford Road, Radlett, Hertfordshire. May 29, 1930, No. 16659. [Class 100 (i).] Web-roll braking-devices.-In a web-roll brake of the kind comprising belts engaging the roll surface and wound on a roller which can be turned to vary the tension of the belts, the roller is geared to one member of an epicyclic gear, a second member of which is driven by an electric motor, and a third member connected to a brake, the braking action of which is variable to cause a variation of the torque applied to the belt roller. In one form, Fig. 3, the belt roller is geared to a spur wheel 1 fast on the carrier 2 of planet wheels 3 gearing with wheels 4, 5 on the shafts 6, 7 of two shunt-wound electrodynamic machines 8, 9 of like characteristic arranged in parallel across the mains. When the machines 8, 9 are driven at the same speed, the carrier 2 and wheel 1 remain stationary. By weakening the field of the machine 8, its speed is increased and the machine 9 is driven as a generator, resulting in a turning movement or tendency to movement being imparted to the wheel 1. In a second form, the shaft 7 is connected to a friction brake instead of the machine 9. To this shaft is connected a brake drum 17, Fig. 6, with which engage friction shoes 31 moved to braking position against the action of springs, by an arm 20 operated by the core 19 of an electromagnet 18, the strength of which is adjustable by means of a variable resistance 22.
GB1665930A 1930-05-29 1930-05-29 Paper web tensioning means for reel-fed printing presses Expired GB352190A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1665930A GB352190A (en) 1930-05-29 1930-05-29 Paper web tensioning means for reel-fed printing presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1665930A GB352190A (en) 1930-05-29 1930-05-29 Paper web tensioning means for reel-fed printing presses

Publications (1)

Publication Number Publication Date
GB352190A true GB352190A (en) 1931-07-09

Family

ID=10081293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1665930A Expired GB352190A (en) 1930-05-29 1930-05-29 Paper web tensioning means for reel-fed printing presses

Country Status (1)

Country Link
GB (1) GB352190A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239187B (en) * 1958-05-05 1967-04-20 Windmoeller & Hoelscher Device for keeping the tension of tapering material webs constant in bag manufacturing machines
GB2410244B (en) * 2004-01-26 2006-02-08 Pfe Internat Ltd Drive system for winding tension control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1239187B (en) * 1958-05-05 1967-04-20 Windmoeller & Hoelscher Device for keeping the tension of tapering material webs constant in bag manufacturing machines
GB2410244B (en) * 2004-01-26 2006-02-08 Pfe Internat Ltd Drive system for winding tension control

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