GB1011761A - Improvements in or relating to apparatus for measuring and indicating the diameter stability of yarns and the like - Google Patents

Improvements in or relating to apparatus for measuring and indicating the diameter stability of yarns and the like

Info

Publication number
GB1011761A
GB1011761A GB4058960A GB4058960A GB1011761A GB 1011761 A GB1011761 A GB 1011761A GB 4058960 A GB4058960 A GB 4058960A GB 4058960 A GB4058960 A GB 4058960A GB 1011761 A GB1011761 A GB 1011761A
Authority
GB
United Kingdom
Prior art keywords
yarn
diameter
gate
output
photo
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
GB4058960A
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.)
William Ewart & Son Ltd
Original Assignee
William Ewart & Son 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 William Ewart & Son Ltd filed Critical William Ewart & Son Ltd
Priority to GB4058960A priority Critical patent/GB1011761A/en
Publication of GB1011761A publication Critical patent/GB1011761A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36Textiles
    • G01N33/365Filiform textiles, e.g. yarns

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

1,011,761. Photo-electric yarn inspection. WILLIAM EWART & SON Ltd. Feb. 21, 1962 [Nov. 25, 1960], No. 40589/60. Heading G1A. Yarn, wire and the like is classified by measuring its diameter photo-electrically and analysing diameter variations according to length and magnitude of variation. The yarn under test, 10 passes in front of a photo-cell to give an output indicative of diameter. The output is compared with the output of a second cell which has before it an adjustable shutter whereby a nominal diameter is set. The difference output from unit 11A is fed to a meter 14 having limit contacts 15 which operate either a yarn cutter 12 or recorders 16 for over- and under-nominal yarn diameter. The difference signal is also applied to threshold gates 19, 22 which emit signals at different degrees of overweight yarn and also for yarn of more than 50% underweight. Faults in yarn diameter of +50% or more classified for length by timing circuits B, C, D, E and F. A pulse at the start of the fault is fed to circuit B to open the associated gate for a preset-time. At the end of this period the gate is closed and a pulse passed to circuit C to open its gate for a preset time and so on for the other timing circuits. A trailing edge pulse for the fault passed through which ever gate is open to be registered on a corresponding counter 25. The outputs of threshold circuits 19, 22 may be monitored on a cathode-ray tube 18 or aural warning system 23.
GB4058960A 1960-11-25 1960-11-25 Improvements in or relating to apparatus for measuring and indicating the diameter stability of yarns and the like Expired GB1011761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4058960A GB1011761A (en) 1960-11-25 1960-11-25 Improvements in or relating to apparatus for measuring and indicating the diameter stability of yarns and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4058960A GB1011761A (en) 1960-11-25 1960-11-25 Improvements in or relating to apparatus for measuring and indicating the diameter stability of yarns and the like

Publications (1)

Publication Number Publication Date
GB1011761A true GB1011761A (en) 1965-12-01

Family

ID=10415643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4058960A Expired GB1011761A (en) 1960-11-25 1960-11-25 Improvements in or relating to apparatus for measuring and indicating the diameter stability of yarns and the like

Country Status (1)

Country Link
GB (1) GB1011761A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1648528B1 (en) * 1966-04-25 1971-11-18 Jonan Electric Co Ltd CONTROL DEVICE FOR RUNNING YARN IN THE EVENT OF A DIFFERENCE FROM A SET PRESSURE GAUGE OF THE YARN BY MEANS OF A PHOTO-ELECTRIC SENSOR DEVICE
WO1980001955A1 (en) * 1979-03-16 1980-09-18 Zellweger Uster Ag Process for testing electronically wires and the evaluation of their faults
CN113029860A (en) * 2021-03-04 2021-06-25 天津工业大学 Yarn evenness detection method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1648528B1 (en) * 1966-04-25 1971-11-18 Jonan Electric Co Ltd CONTROL DEVICE FOR RUNNING YARN IN THE EVENT OF A DIFFERENCE FROM A SET PRESSURE GAUGE OF THE YARN BY MEANS OF A PHOTO-ELECTRIC SENSOR DEVICE
WO1980001955A1 (en) * 1979-03-16 1980-09-18 Zellweger Uster Ag Process for testing electronically wires and the evaluation of their faults
CN113029860A (en) * 2021-03-04 2021-06-25 天津工业大学 Yarn evenness detection method
CN113029860B (en) * 2021-03-04 2022-05-03 天津工业大学 Yarn evenness detection method

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