GB705179A - An improved electrical system for controlling the feed to a reeling motor in installations for the treatment of strip material - Google Patents

An improved electrical system for controlling the feed to a reeling motor in installations for the treatment of strip material

Info

Publication number
GB705179A
GB705179A GB690251A GB690251A GB705179A GB 705179 A GB705179 A GB 705179A GB 690251 A GB690251 A GB 690251A GB 690251 A GB690251 A GB 690251A GB 705179 A GB705179 A GB 705179A
Authority
GB
United Kingdom
Prior art keywords
strip
motor
speed
resistor
transformer
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
GB690251A
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.)
Laurence Scott and Electromotors Ltd
Original Assignee
Laurence Scott and Electromotors 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 Laurence Scott and Electromotors Ltd filed Critical Laurence Scott and Electromotors Ltd
Priority to GB690251A priority Critical patent/GB705179A/en
Publication of GB705179A publication Critical patent/GB705179A/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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/1806—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in reel-to-reel type web winding and unwinding mechanism, e.g. mechanism acting on web-roll spindle
    • 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
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/195—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations
    • B65H23/198—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in winding mechanisms or in connection with winding operations motor-controlled (Controlling electrical drive motors therefor)

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

705,179. Control of D.C. motors. LAURENCE, SCOTT & ELECTROMOTORS, Ltd., and LANGHAM, E. M. March 24, 1952 [March 22, 1951], No. 6902/51. Class 38(3) The speed and torque of a series motor M driving a drum upon which is wound strip material after the material has been annealed or otherwise treated is varied in predetermined relation to the strip speed to maintain approximately constant tension of the strip, or, alternatively, when a motor other than the reeling motor is used to maintain approximately constant strip tension, to provide substantially constant strip speed irrespective of build-up of the reel. The motor is supplied through a variable voltage transformer Tn which provides a voltage proportional to the linear speed of the strip and is connected to transformer Tt having a transformation ratio proportional to the square root of the tension of the strip. A voltage in accordance with the product of the strip speed and the square root of the tension is thus supplied through resistor Rn and rectifier X to the motor, a transformer T supplying compensation for the drop in the rectifier. The motor is either connected to a high voltage D.C. source Vd through resistor R, or the rectifier is connected to a high voltage A.C. source Vc through resistor Rc, in order to provide the motor with an additional torque compensating for frictional losses. The value of the resistor Rn is made a function, preferably linear, of the speed, the adjusting arms S, S2, of the transformer Tn and the resistor being simultaneously adjustable. This provides satisfactory operation at reduced powers. The resistance Rn may be replaced by a grid-controlled mercury arc rectifier.
GB690251A 1951-03-22 1951-03-22 An improved electrical system for controlling the feed to a reeling motor in installations for the treatment of strip material Expired GB705179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB690251A GB705179A (en) 1951-03-22 1951-03-22 An improved electrical system for controlling the feed to a reeling motor in installations for the treatment of strip material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB690251A GB705179A (en) 1951-03-22 1951-03-22 An improved electrical system for controlling the feed to a reeling motor in installations for the treatment of strip material

Publications (1)

Publication Number Publication Date
GB705179A true GB705179A (en) 1954-03-10

Family

ID=9822909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB690251A Expired GB705179A (en) 1951-03-22 1951-03-22 An improved electrical system for controlling the feed to a reeling motor in installations for the treatment of strip material

Country Status (1)

Country Link
GB (1) GB705179A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292022A (en) * 1963-02-01 1966-12-13 Production Machinery Corp Electrical tension control device for strip processing line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292022A (en) * 1963-02-01 1966-12-13 Production Machinery Corp Electrical tension control device for strip processing line

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