US3554656A - Detecting device for visual observation of a moving fabric - Google Patents

Detecting device for visual observation of a moving fabric Download PDF

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Publication number
US3554656A
US3554656A US837976*A US3554656DA US3554656A US 3554656 A US3554656 A US 3554656A US 3554656D A US3554656D A US 3554656DA US 3554656 A US3554656 A US 3554656A
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US
United States
Prior art keywords
fabric
plate
light
reflected
light rays
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 - Lifetime
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US837976*A
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English (en)
Inventor
Henri Eicken
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Individual
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Individual
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Publication of US3554656A publication Critical patent/US3554656A/en
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    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity
    • 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
    • D06H3/12—Detecting or automatically correcting errors in the position of weft threads in woven fabrics
    • D06H3/125—Detecting errors in the position of weft threads

Definitions

  • the invention has for object to overcome these deficiencies and to provide a device which may be employed with fabrics of any texture or color.
  • FIG. 4 is a plan view of a second embodiment, certain members being omitted.
  • the equipment shown schematically in FIG. 1 includes two detecting devices I and III and mounted in front of a moving fabric to be controlled, two amplifiers H and IV, an integrator V of the signals coming from the amplifiers -I I and IV, and a modulator VI transforming the signals coming from the integrator V into control signals for a unit VI 'I automatically controlling a straightening mechanism and for a unit VIII for the visual observation of the fabric. All the elements H to VIII may be constructed in the usual known manner.
  • This second embodiment as so far described is similar to the first embodiment. However, it further includes a third detecting head 30 mounted in the plane of the luminous source and between the two first detecting heads 24 and 25, so as to receive the light reflected by the plate 4. As with the preceding ones, this head includes a photoresistant measuring cell.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
US837976*A 1964-06-08 1969-04-10 Detecting device for visual observation of a moving fabric Expired - Lifetime US3554656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH746864A CH402463A (fr) 1964-06-08 1964-06-08 Dispositif détecteur dans une installation de redressement de tissu

Publications (1)

Publication Number Publication Date
US3554656A true US3554656A (en) 1971-01-12

Family

ID=4325586

Family Applications (1)

Application Number Title Priority Date Filing Date
US837976*A Expired - Lifetime US3554656A (en) 1964-06-08 1969-04-10 Detecting device for visual observation of a moving fabric

Country Status (6)

Country Link
US (1) US3554656A (de)
AT (1) AT260849B (de)
CH (2) CH402463A (de)
FR (1) FR1440968A (de)
GB (1) GB1107822A (de)
NL (1) NL6507126A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029420A (en) * 1974-12-27 1977-06-14 Romilly John Simms Light reflectance instrument
US4065213A (en) * 1969-10-22 1977-12-27 Curt Lennart Nyman Apparatus for and method of inspecting tubular textile goods
US4378161A (en) * 1980-08-01 1983-03-29 Sw Industries, Inc. Optical sensing system for determining the angular orientation of weft threads
US4586372A (en) * 1984-05-08 1986-05-06 Robert Massen Method and arrangement for the continuous contactless measurement of the shrinkage of textiles
US4656360A (en) * 1984-10-19 1987-04-07 Sw Industries, Inc. Optical sensing system for determining the orientation of weft threads in a wide variety of fabrics

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4305184A (en) 1979-01-15 1981-12-15 Bunker Ramo Corporation Control of skew, bow and yield in circularly knit pile fabric
GB2115141B (en) * 1982-02-19 1985-09-04 Ici Plc Surface coating characterisation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065213A (en) * 1969-10-22 1977-12-27 Curt Lennart Nyman Apparatus for and method of inspecting tubular textile goods
US4029420A (en) * 1974-12-27 1977-06-14 Romilly John Simms Light reflectance instrument
US4378161A (en) * 1980-08-01 1983-03-29 Sw Industries, Inc. Optical sensing system for determining the angular orientation of weft threads
US4586372A (en) * 1984-05-08 1986-05-06 Robert Massen Method and arrangement for the continuous contactless measurement of the shrinkage of textiles
US4656360A (en) * 1984-10-19 1987-04-07 Sw Industries, Inc. Optical sensing system for determining the orientation of weft threads in a wide variety of fabrics

Also Published As

Publication number Publication date
DE1460567A1 (de) 1969-04-24
DE1460567B2 (de) 1975-06-26
CH402463A (fr) 1965-11-15
NL6507126A (de) 1965-12-09
GB1107822A (en) 1968-03-27
FR1440968A (fr) 1966-06-03
CH418004A (fr) 1966-07-31
AT260849B (de) 1968-03-25

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