GB887286A - Improvements in and relating to web-tension control arrangements - Google Patents

Improvements in and relating to web-tension control arrangements

Info

Publication number
GB887286A
GB887286A GB900559A GB900559A GB887286A GB 887286 A GB887286 A GB 887286A GB 900559 A GB900559 A GB 900559A GB 900559 A GB900559 A GB 900559A GB 887286 A GB887286 A GB 887286A
Authority
GB
United Kingdom
Prior art keywords
brake
web
braking
linkage
actuated
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
GB900559A
Inventor
Frederick Wallace Ralph
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.)
WITTON Ltd JAMES
Original Assignee
WITTON Ltd JAMES
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 WITTON Ltd JAMES filed Critical WITTON Ltd JAMES
Priority to GB900559A priority Critical patent/GB887286A/en
Priority to CH292060A priority patent/CH381519A/en
Publication of GB887286A publication Critical patent/GB887286A/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
    • B65H23/063—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle and controlling web tension

Landscapes

  • Winding Of Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

887,286. Brakes for web rolls. [WITTON-JAMES Ltd. March 15, 1960 [March 16, 1959], No. 9005/59. Class 103 (1). [Also in Group XVI] A web tension control arrangement for controlling the tension of a web unwound from a reel mounted on a spindle which rotates with the reel comprises fluid - operated control means responsive to changes in web tension, braking means for applying braking torque to the spindle, and brake actuating means responsive to the output of the control means to apply a braking torque dependent upon the output, the brake-actuating means being adjustable to operate in different ranges of braking torque for a given range of outputs from the control means. As shown, spindles and carrying reels 1, 2 and 3 are braked by brake blocks 28 arranged around the periphery of a disc 27. The blocks 28 are actuated by pistons 29, Fig. 2, within cylinders 30 supplied with air under pressure through selector valves 32, Fig. 1, thus the number of blocks operative to effect braking may be varied, e.g. to suit the width of web being unwound. The air pressure supplied to the cylinders is controlled by a web tension control roller 6 which operates a control valve 7 connected to a high pressure air supply. Alternatively, four pistons 29, Fig. 3 (not shown) may actuate a single brake block 28. In another embodiment, a brake drum, Fig. 4, is engaged by brake shoes 38 forced inwardly by inflatable tubes 39 connected to selector valves 32. In another embodiment brake shoes 48, 49, Fig. 5 (not shown), are actuated through a linkage 52, 53 or cam 62, Fig. 6 (not shown), by a chain or belt 44, Fig. 5 (not shown), engaging a central member 43 rocked by a piston within a cylinder 42 through a linkage 45 having adjustable pivot points along an arm. In a further embodiment, a cam 63, Fig. 7 (not shown), actuated by the piston of a cylinder 63 through a linkage 67 actuates a cam follower 64 which controls the braking action of shoes 65.
GB900559A 1959-03-16 1959-03-16 Improvements in and relating to web-tension control arrangements Expired GB887286A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB900559A GB887286A (en) 1959-03-16 1959-03-16 Improvements in and relating to web-tension control arrangements
CH292060A CH381519A (en) 1959-03-16 1960-03-15 Device for controlling the tension of a fabric web, in particular a paper web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB900559A GB887286A (en) 1959-03-16 1959-03-16 Improvements in and relating to web-tension control arrangements

Publications (1)

Publication Number Publication Date
GB887286A true GB887286A (en) 1962-01-17

Family

ID=9863522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB900559A Expired GB887286A (en) 1959-03-16 1959-03-16 Improvements in and relating to web-tension control arrangements

Country Status (2)

Country Link
CH (1) CH381519A (en)
GB (1) GB887286A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146805A (en) * 1983-09-15 1985-04-24 Montalvo Edwin J Automatic control in a web system
CN104555624A (en) * 2013-10-22 2015-04-29 宜兴市鑫源辊业有限公司 Pneumatic diaphragm regulating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2146805A (en) * 1983-09-15 1985-04-24 Montalvo Edwin J Automatic control in a web system
CN104555624A (en) * 2013-10-22 2015-04-29 宜兴市鑫源辊业有限公司 Pneumatic diaphragm regulating device

Also Published As

Publication number Publication date
CH381519A (en) 1964-08-31

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