GB1443258A - Rendering elongate fibrous material substantially uniform in thickness - Google Patents

Rendering elongate fibrous material substantially uniform in thickness

Info

Publication number
GB1443258A
GB1443258A GB2704074A GB2704074A GB1443258A GB 1443258 A GB1443258 A GB 1443258A GB 2704074 A GB2704074 A GB 2704074A GB 2704074 A GB2704074 A GB 2704074A GB 1443258 A GB1443258 A GB 1443258A
Authority
GB
United Kingdom
Prior art keywords
signal
speed
thickness
fibrous material
speed signal
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
GB2704074A
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of GB1443258A publication Critical patent/GB1443258A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
    • G01B7/125—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters of objects while moving

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

1443258 Rendering fibrous material uniform in thickness SIEMENS AG 18 June 1974 [19 June 1973] 27040/74 Heading DIN In. a fibre drawing apparatus the thickness of the fibrous material is measured at 3 and a signal proportional to the thickness is stored in an electrical storage means 15, this signal being released after the time required for the measured portion to enter the drafting zone and being used to determine the speed of one of the drafting elements to hence compensate for irregularities in the material thickness. The speed of the other drafting element being determined by comparison of an actual speed signal with a variable desired speed signal. The time after which the signal is released is determined according to the speed of travel of the fibrous material. The electrical storage means may be a capacitor type store or a shift register. As shown the motor 7 is controlled by a difference signal generated at 11 between a desired speed signal Vgr and a tachogenerator actual speed signal. The actual speed signal is also tapped to influence, by means of a signal Vs, the speed of motor 9. This speed is also controlled by an actual speed signal Vi and is modified by a signal Vk from the electrical storage means 15. The time lapse is determined by a signal tapped from the desired speed signal Vgr.
GB2704074A 1973-06-19 1974-06-18 Rendering elongate fibrous material substantially uniform in thickness Expired GB1443258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732331217 DE2331217A1 (en) 1973-06-19 1973-06-19 DEVICE FOR COMPARISON OF THE THICKNESS OF TAPE OR STRANDED MATERIAL IN TEXTILE PREPARATION

Publications (1)

Publication Number Publication Date
GB1443258A true GB1443258A (en) 1976-07-21

Family

ID=5884464

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2704074A Expired GB1443258A (en) 1973-06-19 1974-06-18 Rendering elongate fibrous material substantially uniform in thickness

Country Status (5)

Country Link
JP (1) JPS5035442A (en)
DE (1) DE2331217A1 (en)
FR (1) FR2234396B1 (en)
GB (1) GB1443258A (en)
IT (1) IT1015129B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137487A (en) * 1975-10-02 1979-01-30 Schubert & Salzer Method and device for automatically leveling fleeces, slivers, rovings and the like by drawing
US4473924A (en) * 1979-10-13 1984-10-02 Zinser Textilmaschinen Gmbh Means for controlling fiber-drawing apparatus
US4574433A (en) * 1983-04-19 1986-03-11 Haigh Chadwick Limited Fibre metering arrangement
US5452626A (en) * 1993-03-12 1995-09-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for the automatic adjustment of rotational speed ratios between operating elements of a draw frame
US5463556A (en) * 1992-06-17 1995-10-31 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for control of an autoleveling draw frame
US5583781A (en) * 1991-06-04 1996-12-10 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device to correct the regulation onset point and the intensity of regulation
US5619773A (en) * 1993-01-25 1997-04-15 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5858691B2 (en) * 1975-06-17 1983-12-27 三菱電機株式会社 Idoutai no Atsusaseigiyosouchi
JPS5319206A (en) * 1976-08-04 1978-02-22 Kingupurinteingu Kk Inverted plate printing method
DE2650287C2 (en) * 1976-11-02 1984-11-29 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Drafting device for slivers
FR2466526A1 (en) * 1979-09-27 1981-04-10 Alsacienne Constr Meca INSTALLATION FOR REGULATING THE SECTION OF THE FIBER MECHANISM EXCEEDING A STRETCH MACHINE
DE3034778C2 (en) * 1980-09-15 1986-04-17 Leningradskij naučno-issledovatel'skij institut tekstil'noj promyšlennosti, Leningrad Device for automatic regulation of the linear density of carding tape

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB866491A (en) * 1956-07-18 1961-04-26 Stanley Whitaker Jackson Improvements relating to the treatment of textile fibres
US3268955A (en) * 1964-02-07 1966-08-30 Burlington Industries Inc Drafting apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137487A (en) * 1975-10-02 1979-01-30 Schubert & Salzer Method and device for automatically leveling fleeces, slivers, rovings and the like by drawing
US4473924A (en) * 1979-10-13 1984-10-02 Zinser Textilmaschinen Gmbh Means for controlling fiber-drawing apparatus
US4512061A (en) * 1979-10-13 1985-04-23 Zinser Textilmaschinen Gmbh Method of controlling fiber-drawing apparatus
US4574433A (en) * 1983-04-19 1986-03-11 Haigh Chadwick Limited Fibre metering arrangement
US5583781A (en) * 1991-06-04 1996-12-10 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device to correct the regulation onset point and the intensity of regulation
US5463556A (en) * 1992-06-17 1995-10-31 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for control of an autoleveling draw frame
US5619773A (en) * 1993-01-25 1997-04-15 Rieter Ingolstadt Spinnereimaschinenbau Ag Draw frame
US5452626A (en) * 1993-03-12 1995-09-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for the automatic adjustment of rotational speed ratios between operating elements of a draw frame

Also Published As

Publication number Publication date
IT1015129B (en) 1977-05-10
JPS5035442A (en) 1975-04-04
FR2234396A1 (en) 1975-01-17
FR2234396B1 (en) 1978-01-13
DE2331217A1 (en) 1975-01-16

Similar Documents

Publication Publication Date Title
GB1443258A (en) Rendering elongate fibrous material substantially uniform in thickness
ZA75836B (en) Process for the expeditious formation and structural modification of polymeric fibers and films
ES479967A1 (en) Method and apparatus for regulating out variations in the sliver weight on devices for processing fibre slivers
ZA741243B (en) Method and apparatus for the production of fibrous materials
CA1000396A (en) Method of and apparatus for determining the variation of the tensile stresses in cold-rolled strip over the width thereof
GB1048970A (en) Measuring system
GB1537531A (en) Method and apparatus for producing a uniform textile fibre sliver
CA1019526A (en) Method and machine for forming random fiber webs
IL43799A0 (en) An improved method of making filamentary material directly from the melt
CA924056A (en) Method for treating textile material with a liquid as well as an apparatus for working the method
CA1032241A (en) Method and apparatus for yarn length measuring using pulses proportional to shaft rotations
ATA388574A (en) Method for the production of a paper machine felt and method for drawing the latter into a paper machine
FR2279751A1 (en) SUBSTITUTE TETRAHYDROFURANS AND PROCESS FOR THEIR MANUFACTURE
JPS52122134A (en) Production of optical fibers
RO66553A (en) MODIFIER COMPOUND AND METHOD FOR REFINING STEELS
SU618686A1 (en) Method of determining oscilloscopic galvanometer damping degree
YU144274A (en) Process for obtaining 4,4-dihydroxyphenyl-(2-pyridyl)-methane ester
FR2291210A1 (en) PROCESS FOR THE PREPARATION OF THE PHOSPHORIC ESTER OF N-METHYL-N-HYDROXYETHYL-GUANIDINE
GB1449351A (en) Take up device for material in the form of a sheet of threads
SU595496A2 (en) Method of determining well deflection direction
JPS571973A (en) Self-adjusting tester
BE817366A (en) METHOD AND AGENTS FOR ANTISTATIC FIBER APPRETATION
CA945413A (en) Method and apparatus for making a continuous fibre web
AU497028B2 (en) Method & apparatus for making articles with nonwoven piles
CA904830A (en) Ester lubricant for synthetic fibres

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee