GB880174A - Improvements in or relating to electrical detecting apparatus particularly for textile machinery - Google Patents

Improvements in or relating to electrical detecting apparatus particularly for textile machinery

Info

Publication number
GB880174A
GB880174A GB1418359A GB1418359A GB880174A GB 880174 A GB880174 A GB 880174A GB 1418359 A GB1418359 A GB 1418359A GB 1418359 A GB1418359 A GB 1418359A GB 880174 A GB880174 A GB 880174A
Authority
GB
United Kingdom
Prior art keywords
sheet
scanning
photo
scanning device
sensitive
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
GB1418359A
Inventor
Gordon Arthur John Orchard
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.)
BRITISH RAYON RES ASS
Original Assignee
BRITISH RAYON RES ASS
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 RAYON RES ASS filed Critical BRITISH RAYON RES ASS
Priority to GB1418359A priority Critical patent/GB880174A/en
Publication of GB880174A publication Critical patent/GB880174A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/898—Irregularities in textured or patterned surfaces, e.g. textiles, wood
    • G01N21/8983—Irregularities in textured or patterned surfaces, e.g. textiles, wood for testing textile webs, i.e. woven material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H3/00—Inspecting textile materials
    • D06H3/08—Inspecting textile materials by photo-electric or television means

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

880,174. Photoelectric flaw detectors. BRITISH RAYON RESEARCH ASSOCIATION. May 3, 1960 [April 25, 1959], No. 14183/59. Class 40(3). In an arrangement for detecting flaws in a sheet material, particularly for knitted fabrics, comprising a stationary light-source associated with a scanning device having a reflecting or a refracting surface for directing light from the source towards the sheet material, and photo-sensitive means to detect the light as influenced by the sheet material, the scanning device is mounted for periodic progression transversely of the sheet. As shown, a beam 11 from a source 11a is focused as a beam parallel to the surface of a sheet 13 on to a scanning device 15 having a lens 15a and mirror 15b projecting a linear beam of small width on to the under surface 13a of the sheet 13. The variably reflected light is transmitted in the reverse path to a half-silvered mirror 18 associated with an apertured diaphragm 19 and a photosensitive device 14. The scanning element 15 is moved across the sheet 13 by a chain or belt 16 driven by one of the wheels 17 and carrying a second scanning device 15, which is operative when the other device is moving along its lower or inoperative path. In a modification, the scanning device 15 may be reciprocated across the under surface 13a of the sheet 13. Also, a number of simultaneously operative scanning elements associated with separate photo-sensitive detectors may be arranged obliquely across the width of a driving belt. In response to a flaw the output from the photo-sensitive member 14 may be used to stop the fabricating machine, and arrangement may be made to disable the stop device for the inoperative periods of the scanning elements, i.e. whilst passing round the curved parts of the wheels 17. The detecting beam from the scanning element 15 may pass through the sheet 11 to the photo-sensitive device, and the arrangement may be used to examine the transparency of sheets, or, with the use of appropriate filters, their colour characteristics. The width of the detecting beam reflected from the mirror 15b may be such as to cover the extent of a number of groups of threads forming a periodic or recurring pattern.
GB1418359A 1959-04-25 1959-04-25 Improvements in or relating to electrical detecting apparatus particularly for textile machinery Expired GB880174A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1418359A GB880174A (en) 1959-04-25 1959-04-25 Improvements in or relating to electrical detecting apparatus particularly for textile machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1418359A GB880174A (en) 1959-04-25 1959-04-25 Improvements in or relating to electrical detecting apparatus particularly for textile machinery

Publications (1)

Publication Number Publication Date
GB880174A true GB880174A (en) 1961-10-18

Family

ID=10036521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1418359A Expired GB880174A (en) 1959-04-25 1959-04-25 Improvements in or relating to electrical detecting apparatus particularly for textile machinery

Country Status (1)

Country Link
GB (1) GB880174A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870727A (en) * 1983-12-22 1989-10-03 Leglertex S.R.L. Method for detecting anomalies in corduroy preparation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870727A (en) * 1983-12-22 1989-10-03 Leglertex S.R.L. Method for detecting anomalies in corduroy preparation

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