GB691069A - Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like - Google Patents

Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like

Info

Publication number
GB691069A
GB691069A GB1923250A GB1923250A GB691069A GB 691069 A GB691069 A GB 691069A GB 1923250 A GB1923250 A GB 1923250A GB 1923250 A GB1923250 A GB 1923250A GB 691069 A GB691069 A GB 691069A
Authority
GB
United Kingdom
Prior art keywords
threads
broken
cell
light
detecting
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
GB1923250A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB1923250A priority Critical patent/GB691069A/en
Publication of GB691069A publication Critical patent/GB691069A/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
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/028—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element
    • B65H63/032—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic
    • B65H63/0321—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators
    • B65H63/0324—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the detecting or sensing element electrical or pneumatic using electronic actuators 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)
  • Quality & Reliability (AREA)
  • Looms (AREA)

Abstract

691,069. Detecting broken threads photoelectrically. GENERAL ELECTRIC CO., Ltd., and WARD, L. G. July 31, 1951 [Aug. 1, 1950], No. 19232/50. Class 40 (iii). Broken threads are detected by a photoelectric cell which receives a narrow light beam scanning a region which the broken thread will enter. As shown warp threads in a loom pass from bobbins 20 to a roller 21. Beneath the threads are situated two housings each containing a photo-cell 10, and a light source 11. The light sources each form a narrow beam of light which is reflected from one of mirrors 13, to the photo-cells. The lamp and cell assemblies are oscillated through the angle 12 by a motor 15 and rod 14. So that a broken thread shall interrupt the light beam a gentle stream of air from a nozzle 23 blows on the threads so as to deflect broken threads downwardly. Both cell assemblies feed a common amplifier to stop the machine or operate a warning device. In a modification, Figs. 3 and 4 (not shown), the lamp and cell are mounted at one end of a carriage which is traversed to and fro beneath the threads and at the other end of which is a plane mirror. The stream of air may be ionized.
GB1923250A 1950-08-01 1950-08-01 Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like Expired GB691069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1923250A GB691069A (en) 1950-08-01 1950-08-01 Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1923250A GB691069A (en) 1950-08-01 1950-08-01 Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like

Publications (1)

Publication Number Publication Date
GB691069A true GB691069A (en) 1953-05-06

Family

ID=10125909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1923250A Expired GB691069A (en) 1950-08-01 1950-08-01 Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like

Country Status (1)

Country Link
GB (1) GB691069A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151779B (en) * 1961-03-06 1963-07-25 Ejnar Jensen Og Son I S Folding device for transverse folding of laundry items or the like.
US3618168A (en) * 1968-04-09 1971-11-09 Teijin Ltd Apparatus for detecting broken yarn in synthetic fiber spinning
US3818236A (en) * 1971-08-23 1974-06-18 Nordiska Maskinfilt Ab Apparatus for detecting broken threads or other disturbances in a fibre web

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151779B (en) * 1961-03-06 1963-07-25 Ejnar Jensen Og Son I S Folding device for transverse folding of laundry items or the like.
US3618168A (en) * 1968-04-09 1971-11-09 Teijin Ltd Apparatus for detecting broken yarn in synthetic fiber spinning
USRE28430E (en) * 1968-04-09 1975-05-27 Eitaro mukai ctal
US3818236A (en) * 1971-08-23 1974-06-18 Nordiska Maskinfilt Ab Apparatus for detecting broken threads or other disturbances in a fibre web

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