GB923358A - Improvements in or relating to arrangements for controlling a moving web of strip material - Google Patents

Improvements in or relating to arrangements for controlling a moving web of strip material

Info

Publication number
GB923358A
GB923358A GB4148/62A GB414862A GB923358A GB 923358 A GB923358 A GB 923358A GB 4148/62 A GB4148/62 A GB 4148/62A GB 414862 A GB414862 A GB 414862A GB 923358 A GB923358 A GB 923358A
Authority
GB
United Kingdom
Prior art keywords
pulse
web
transit
sag
feed
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
GB4148/62A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB923358A publication Critical patent/GB923358A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/48—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/24—Advancing webs by looping or like devices
    • 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
    • B65H23/042—Sensing the length of a web loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

923,358. Automatic control of moving webs. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb. 2, 1962 [Feb. 2, 1961], No. 4148/62. Class 38 (4). In an arrangement for controlling a moving suspended web of flexible material, the transit time of sound signals transmitted to the web and reflected therefrom is electronically evaluated. As shown, a moving web 1 is fed over rollers 3, 4 into a sag-pit 2. Sound signals from a transmitter 5 are initiated by a pulse-generator 7 and the reflected sound pulse is received by a receiver 6. The time between the leading edge of the transmitted pulse and the leading edge of the received pulse determines the length of a pulse from a pulse former 8 which is a measure of the transit time. This transit pulse is fed to an input of an actual-to-nominal valve comparator 9 wherein it opens a gate 9b to permit a signal from a quartz crystal oscillator 9a to pass to a counter 9c. The number of cycles of the oscillator signal occurring during the duration of the transit pulse is compared with a preset nominal valve signal 9e. The differential output of the counter 9c, through a digital-to-analogue converter 9d, controls a driving equipment 10 for a feed-roller 11 and a take-off roll, not shown, so as to maintain the sag constant. The equipment 10 comprises a Ward-Leonard system supplying the motors driving the feed and take-off rollers and the converter controls a booster generator in the supply to the feed-roll motor. It is stated that the nominal valve signal may be varied in dependence upon the web speed so as to keep constant the time for which the material is in the sag-pit. It is also stated that the gate 9b may be controlled directly by the transmitted and received pulses.
GB4148/62A 1961-02-02 1962-02-02 Improvements in or relating to arrangements for controlling a moving web of strip material Expired GB923358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL38201A DE1263443B (en) 1961-02-02 1961-02-02 Arrangement for slack control for strip material running through a passage pit

Publications (1)

Publication Number Publication Date
GB923358A true GB923358A (en) 1963-04-10

Family

ID=7268196

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4148/62A Expired GB923358A (en) 1961-02-02 1962-02-02 Improvements in or relating to arrangements for controlling a moving web of strip material

Country Status (2)

Country Link
DE (1) DE1263443B (en)
GB (1) GB923358A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059833A1 (en) * 1981-03-06 1982-09-15 Grote & Hartmann GmbH & Co. KG Storage apparatus, particularly for isolated electric wires
EP0500160A1 (en) * 1991-02-11 1992-08-26 Industria Grafica Meschi S.r.l. Loop control device for paper webs
FR2823714A1 (en) * 2001-04-20 2002-10-25 Xavier Boutin Band type label printer, for rolling up and unrolling of a band of labels, has photoelectric cells linked to control circuits for control of motors so that the tension of the label band is optimized to ensure high print quality

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437619A (en) 1981-05-06 1984-03-20 Hall Cary Catenary controller
JPH07112844B2 (en) * 1989-06-08 1995-12-06 ローレルバンクマシン株式会社 Wrapping paper supply device for coin wrapping machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487755A (en) * 1947-09-11 1949-11-08 Clark Controller Co Strip material loop control
DE1004711B (en) * 1953-11-07 1957-03-21 Siemens Ag Arrangement for regulation depending on the size of the loop formed by a continuous wire or band-shaped good
DE1012467B (en) * 1955-04-04 1957-07-18 Realisations Ultrasoniques Sar Device for distance and thickness measurement according to the echo sounder principle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0059833A1 (en) * 1981-03-06 1982-09-15 Grote & Hartmann GmbH & Co. KG Storage apparatus, particularly for isolated electric wires
EP0500160A1 (en) * 1991-02-11 1992-08-26 Industria Grafica Meschi S.r.l. Loop control device for paper webs
FR2823714A1 (en) * 2001-04-20 2002-10-25 Xavier Boutin Band type label printer, for rolling up and unrolling of a band of labels, has photoelectric cells linked to control circuits for control of motors so that the tension of the label band is optimized to ensure high print quality

Also Published As

Publication number Publication date
DE1263443B (en) 1968-03-14

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