GB760755A - Improvements in or relating to devices for detecting variations in yarn cross-section - Google Patents

Improvements in or relating to devices for detecting variations in yarn cross-section

Info

Publication number
GB760755A
GB760755A GB1754554A GB1754554A GB760755A GB 760755 A GB760755 A GB 760755A GB 1754554 A GB1754554 A GB 1754554A GB 1754554 A GB1754554 A GB 1754554A GB 760755 A GB760755 A GB 760755A
Authority
GB
United Kingdom
Prior art keywords
image
lens
yarn
photo
passed
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
GB1754554A
Inventor
Alwyne Abbott
Edgar Bertie Johnson
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.)
Acordis UK Ltd
Original Assignee
British Celanese 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 British Celanese Ltd filed Critical British Celanese Ltd
Priority to GB1754554A priority Critical patent/GB760755A/en
Publication of GB760755A publication Critical patent/GB760755A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/0004—Microscopes specially adapted for specific applications
    • G02B21/0016—Technical microscopes, e.g. for inspection or measuring in industrial production processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/06—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to presence of irregularities in running material, e.g. for severing the material at irregularities ; Control of the correct working of the yarn cleaner
    • B65H63/062—Electronic slub detector
    • B65H63/065—Electronic slub detector using photo-electric sensing means, i.e. the defect signal is a variation of light energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

760,755. Photo-electric apparatus. BRITISH CELANESE, Ltd. June 13, 1955 [June 15, 1954], No. 17545/54. Class 40 (3). [Also in Group XX] An apparatus for detecting or measuring irregularities in the cross-sectional area of a running yarn comprises a light source of even intensity, a lens positioned to form a real image of the source, means for passing the yarn along the optical axis of the lens and through the said image and a photo-electric cell arranged to detect or measure changes in the light flux from the image. As shown, the lens 7 forms an image of the circular aperture 5 in the plate 4 and the yarn is passed along the lens axis and through this image by pulleys 11, 12. Variations in the light flux from the image are detected or measured by focusing the image on to a photo-electric cell 10 by means of a second lens 8. A stop 9 is placed in the plane of the image formed by the second lens 8 and has a diameter slightly smaller than that of the image. The image formed by lens 7 should be only slightly larger than the maximum diameter of the yarn. Stops 5 and 9 may be adjustable iris diaphragms. The current from the photoelectric cell may be passed to a galvanometer or cathode-ray tube, and if desired it may be amplified. A permanent record of the signal may be produced. Instead of using pulleys, the yarn may be passed through holes formed in the centres of the lenses.
GB1754554A 1954-06-15 1954-06-15 Improvements in or relating to devices for detecting variations in yarn cross-section Expired GB760755A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1754554A GB760755A (en) 1954-06-15 1954-06-15 Improvements in or relating to devices for detecting variations in yarn cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1754554A GB760755A (en) 1954-06-15 1954-06-15 Improvements in or relating to devices for detecting variations in yarn cross-section

Publications (1)

Publication Number Publication Date
GB760755A true GB760755A (en) 1956-11-07

Family

ID=10097060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1754554A Expired GB760755A (en) 1954-06-15 1954-06-15 Improvements in or relating to devices for detecting variations in yarn cross-section

Country Status (1)

Country Link
GB (1) GB760755A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075323B (en) * 1960-02-11 VEB Intron Leipzig Werk fur industrielle Elektronik Leipzig Photoelectric thickness meter
US3017801A (en) * 1957-11-29 1962-01-23 Ingber Oscar Henri Device for measuring the width or diameter of fixed or movable tapes and wires
DE1149548B (en) * 1958-07-07 1963-05-30 Cluett Peabody & Co Inc Method and apparatus for measuring the size and frequency of imperfections in a fabric
US3162712A (en) * 1960-05-31 1964-12-22 Ingber Oscar Henri Optical device for measuring the width or diameter of fixed or movable tapes, wires, tubes, bars and the like
DE1218324B (en) * 1959-12-31 1966-06-02 Loepfe Ag Geb Thread checker for textile machines
DE1272587B (en) * 1961-10-02 1968-07-11 Lindly & Company Inc Automatic thread monitoring device
DE1276337B (en) * 1963-11-13 1968-08-29 Battelle Institut E V Device for the contactless determination of the dimensions of transparent objects
DE1276529B (en) * 1962-07-23 1968-08-29 Siegfried Peyer Electro-optical thread cleaner
DE4300581C2 (en) * 1993-01-12 2001-05-23 Herbst Protechna Gmbh Device for photoelectric monitoring

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075323B (en) * 1960-02-11 VEB Intron Leipzig Werk fur industrielle Elektronik Leipzig Photoelectric thickness meter
US3017801A (en) * 1957-11-29 1962-01-23 Ingber Oscar Henri Device for measuring the width or diameter of fixed or movable tapes and wires
DE1149548B (en) * 1958-07-07 1963-05-30 Cluett Peabody & Co Inc Method and apparatus for measuring the size and frequency of imperfections in a fabric
DE1218324B (en) * 1959-12-31 1966-06-02 Loepfe Ag Geb Thread checker for textile machines
US3162712A (en) * 1960-05-31 1964-12-22 Ingber Oscar Henri Optical device for measuring the width or diameter of fixed or movable tapes, wires, tubes, bars and the like
DE1272587B (en) * 1961-10-02 1968-07-11 Lindly & Company Inc Automatic thread monitoring device
DE1276529B (en) * 1962-07-23 1968-08-29 Siegfried Peyer Electro-optical thread cleaner
DE1276337B (en) * 1963-11-13 1968-08-29 Battelle Institut E V Device for the contactless determination of the dimensions of transparent objects
DE4300581C2 (en) * 1993-01-12 2001-05-23 Herbst Protechna Gmbh Device for photoelectric monitoring

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