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GB716370A - Improvements in apparatus for counting or removing faults from yarns and threads - Google Patents

Improvements in apparatus for counting or removing faults from yarns and threads

Info

Publication number
GB716370A
GB716370A GB2968950A GB2968950A GB716370A GB 716370 A GB716370 A GB 716370A GB 2968950 A GB2968950 A GB 2968950A GB 2968950 A GB2968950 A GB 2968950A GB 716370 A GB716370 A GB 716370A
Authority
GB
United Kingdom
Prior art keywords
pressure
behind
yarn
air
pneumatic
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
GB2968950A
Inventor
John Alexander Matthew
John Lightfoot Spencer-Smith
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.)
Linen Industry Research Association
Original Assignee
Linen Industry Research Association
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 Linen Industry Research Association filed Critical Linen Industry Research Association
Priority to GB2968950A priority Critical patent/GB716370A/en
Publication of GB716370A publication Critical patent/GB716370A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

716,370. Fluid-pressure servomotor-control systems. LINEN INDUSTRY RESEARCH ASSOCIATION. Dec. 4, 1951 [Dec. 5, 1950], No. 29689/50. Class 135. [Also in Groups IX, XXXVI and XL (b)] In pneumatic apparatus for testing a yarn 6 during reeling or winding (see Group IX) the running yarn passes over identical orifices 77a, 78a in V guides of gauging heads 77, 78 connected to air-tight chambers supplied with compressed air from a constant pressure source B1 through identical lengths of constrictors 79, 80. A pressure gauge sensitive to differences in pressure behind the two air jets in the heads 77, 78, due to variations in size of a length of yarn over the head 78 and the average size of the running yarn, controls an electronic trigger device (see Group XL(b)) as through a switch arm 84 and contacts 85, 86, or a pneumatic and mechanical device (not shown), for stopping or cutting the yam. In the form of differential gauge illustrated, two pneumatic diaphragms 83 are connected with a small volume chamber behind the test jet at 78a, and with a larger volume chamber behind the head 77, through a capillary tube 82, which controls the rate of damping of rapid pressure variations behind the air jet at 77a, and the diaphragms 83 operate in opposition on the lever 84.
GB2968950A 1950-12-05 1950-12-05 Improvements in apparatus for counting or removing faults from yarns and threads Expired GB716370A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2968950A GB716370A (en) 1950-12-05 1950-12-05 Improvements in apparatus for counting or removing faults from yarns and threads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2968950A GB716370A (en) 1950-12-05 1950-12-05 Improvements in apparatus for counting or removing faults from yarns and threads

Publications (1)

Publication Number Publication Date
GB716370A true GB716370A (en) 1954-10-06

Family

ID=10295530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2968950A Expired GB716370A (en) 1950-12-05 1950-12-05 Improvements in apparatus for counting or removing faults from yarns and threads

Country Status (1)

Country Link
GB (1) GB716370A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199519B (en) * 1959-08-12 1965-08-26 Zellweger A G App Und Maschine Device for determining spontaneous changes in cross-section in yarns, rovings and tapes in the textile industry
US3258824A (en) * 1963-09-28 1966-07-05 Reiners Walter Apparatus for checking of travelling yarn in textile machinery
DE1798297B1 (en) * 1967-09-25 1971-06-03 Philips Nv DEVICE FOR MEASURING THE ABSOLUTE DIA

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199519B (en) * 1959-08-12 1965-08-26 Zellweger A G App Und Maschine Device for determining spontaneous changes in cross-section in yarns, rovings and tapes in the textile industry
US3258824A (en) * 1963-09-28 1966-07-05 Reiners Walter Apparatus for checking of travelling yarn in textile machinery
DE1798297B1 (en) * 1967-09-25 1971-06-03 Philips Nv DEVICE FOR MEASURING THE ABSOLUTE DIA

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