GB1521108A - Method and apparatus for sensing of pressure differences in a fibre layer - Google Patents

Method and apparatus for sensing of pressure differences in a fibre layer

Info

Publication number
GB1521108A
GB1521108A GB4266175A GB4266175A GB1521108A GB 1521108 A GB1521108 A GB 1521108A GB 4266175 A GB4266175 A GB 4266175A GB 4266175 A GB4266175 A GB 4266175A GB 1521108 A GB1521108 A GB 1521108A
Authority
GB
United Kingdom
Prior art keywords
fiber layer
pressure
sensing
valve
plate
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
GB4266175A
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.)
Maschinenfabrik Rieter AG
Original Assignee
Maschinenfabrik Rieter 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
Priority claimed from CH1465274A external-priority patent/CH589731A5/xx
Priority claimed from CH1263775A external-priority patent/CH610017A5/xx
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of GB1521108A publication Critical patent/GB1521108A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/06—Arrangements in which a machine or apparatus is regulated in response to changes in the volume or weight of fibres fed, e.g. piano motions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B13/00—Measuring arrangements characterised by the use of fluids
    • G01B13/02—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness
    • G01B13/06—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness for measuring thickness

Abstract

1521108 Sensing pressure in a fiber layer MASCHINENFABRIK RIETER AG 17 Oct 1975 [1 Nov 1974 30 Sept 1975] 42661/75 Headings D1F and DIN In a fiber handling machine a cover plate 7 is located over a fiber layer 14 on a moving surface 5, e.g. a carding cylinder, and pressure variations are measured under the plate 7. Such pressure variations are proportional to the thickness of the fiber layer and are used to control the speed of suitable elements of the machine, e.g. the feeding arrangement, carding cylinder, doffer or drawing device, and hence even out variations in fiber layer thickness. A swelling out on the plate 7 provides a throttling effect with a pressure increase at A and decrease at B, the difference can be used as the measured valve. This valve is compared with a preset desired valve and retroactive control is applied. Pressure sensing bores 9, 21 may be located across the width of the fiber layer, or a single bore can communicate with a transverse groove in the cover plate 7.
GB4266175A 1974-11-01 1975-10-17 Method and apparatus for sensing of pressure differences in a fibre layer Expired GB1521108A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1465274A CH589731A5 (en) 1974-11-01 1974-11-01
CH1263775A CH610017A5 (en) 1975-09-30 1975-09-30

Publications (1)

Publication Number Publication Date
GB1521108A true GB1521108A (en) 1978-08-09

Family

ID=25710638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4266175A Expired GB1521108A (en) 1974-11-01 1975-10-17 Method and apparatus for sensing of pressure differences in a fibre layer

Country Status (7)

Country Link
JP (1) JPS5172622A (en)
AR (1) AR209619A1 (en)
BR (1) BR7507179A (en)
DE (1) DE2548299A1 (en)
FR (1) FR2289886A1 (en)
GB (1) GB1521108A (en)
IT (1) IT1048087B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102758277A (en) * 2012-07-02 2012-10-31 无锡市灵特电子仪器设备有限公司 Cotton-carding autoleveler and control method thereof
CN116026261A (en) * 2023-03-30 2023-04-28 钛玛科（北京）工业科技有限公司 Method and device for measuring thickness of sheet membrane by utilizing pressure difference change

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH627497A5 (en) * 1978-04-26 1982-01-15 Zellweger Uster Ag DEVICE FOR OBTAINING ONE OF THE REGULATORY SIGNALS RELATING TO THE DENSITY OF THE FIBER COATING ON THE TAMBOUR OF A CARD.
CH627498A5 (en) * 1978-04-26 1982-01-15 Zellweger Uster Ag METHOD AND DEVICE FOR REGULATING TAPE WEIGHT VARIATIONS ON CARD, CARD, AND STRETCHES.
DE3708186A1 (en) * 1987-03-13 1988-09-22 Hergeth Hubert DEVICE AND METHOD FOR THE HIGH-PRECISION MEASUREMENT OF FIBER MATS
GB8710162D0 (en) * 1987-04-29 1987-06-03 Carding Spec Canada Controlling carding machines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB995652A (en) * 1962-04-25 1965-06-23 Cotton Silk & Man Made Fibres Improvements in or relating to the spinning of textile yarns
FR1520137A (en) * 1966-05-06 1968-04-05 Zellweger Uster Ag Method and device for obtaining measured values which correspond to the substance cross section of textile materials, in particular of fiber ribbons
CH466105A (en) * 1968-06-28 1968-11-30 Zellweger Uster Ag Method and device for leveling card slivers
CH541146A (en) * 1972-01-24 1973-08-31 Zellweger Uster Ag Sliver testing unit - with slit channel and press indicator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102758277A (en) * 2012-07-02 2012-10-31 无锡市灵特电子仪器设备有限公司 Cotton-carding autoleveler and control method thereof
CN102758277B (en) * 2012-07-02 2018-09-18 湖北金源麻纺织科技有限公司 Cotton carding automatic adjusting homogenizing device and its control method
CN116026261A (en) * 2023-03-30 2023-04-28 钛玛科（北京）工业科技有限公司 Method and device for measuring thickness of sheet membrane by utilizing pressure difference change

Also Published As

Publication number Publication date
FR2289886B1 (en) 1982-03-19
JPS5172622A (en) 1976-06-23
BR7507179A (en) 1976-08-10
AR209619A1 (en) 1977-05-13
DE2548299A1 (en) 1976-05-06
IT1048087B (en) 1980-11-20
FR2289886A1 (en) 1976-05-28

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Legal Events

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