GB1388588A - Apparatus for detecting broken thread or other disturbances in a fibre web - Google Patents

Apparatus for detecting broken thread or other disturbances in a fibre web

Info

Publication number
GB1388588A
GB1388588A GB3934472A GB3934472A GB1388588A GB 1388588 A GB1388588 A GB 1388588A GB 3934472 A GB3934472 A GB 3934472A GB 3934472 A GB3934472 A GB 3934472A GB 1388588 A GB1388588 A GB 1388588A
Authority
GB
United Kingdom
Prior art keywords
threads
light beam
warp threads
aug
detected
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
GB3934472A
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.)
Nordiska Maskinfilt AB
Original Assignee
Nordiska Maskinfilt AB
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 Nordiska Maskinfilt AB filed Critical Nordiska Maskinfilt AB
Publication of GB1388588A publication Critical patent/GB1388588A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/20—Warp stop motions
    • D03D51/28—Warp stop motions electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)

Abstract

1388588 Counting broken threads NORDISKA MASKINFILT AB 23 Aug 1972 [23 Aug 1971] 39344/72 Heading G4D [Also in Division G1] In an apparatus for detecting broken warp threads in a weaving machine a laser light beam 9 is made to rotate (see arrows 16 in Fig. 2), by a rotating hollow shaft 12 and optical element 13 the beam being received by a photoelectric cell 10 with a collecting input screen. Alternatively the beam can be made to reciprocate. As can be seen from Fig. 2, the light beam should, under normal conditions, intercept the warp threads 2 four times each rotation, thus the output pulses of the photo-cell above a predetermined level are counted for a predetermined number of revolutions and then compared with a predetermined number and if it is exceeded, indicating a thread hanging down &c., a signal is generated (Fig. 3, not shown), which stops the weaving machine and/or operates an alarm. So that any loose lower warp threads can still be scanned by the beam a catching device 15 is provided for the loose threads to lie on and thus be detected. Disturbances occurring within different portions of the area of movement of the light beam may be detected by employing several clocks which connect and disconnect individual counters for registration of the situation in the corresponding portion in synchronism with the beam.
GB3934472A 1971-08-23 1972-08-23 Apparatus for detecting broken thread or other disturbances in a fibre web Expired GB1388588A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE10637/71A SE355608B (en) 1971-08-23 1971-08-23

Publications (1)

Publication Number Publication Date
GB1388588A true GB1388588A (en) 1975-03-26

Family

ID=20292634

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3934472A Expired GB1388588A (en) 1971-08-23 1972-08-23 Apparatus for detecting broken thread or other disturbances in a fibre web

Country Status (6)

Country Link
US (1) US3818236A (en)
CH (1) CH553270A (en)
FR (1) FR2150357B1 (en)
GB (1) GB1388588A (en)
IT (1) IT964166B (en)
SE (1) SE355608B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2446918C2 (en) * 2006-10-13 2012-04-10 Кеннаметал Инк. Modular drilling tool and method of its production

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989068A (en) * 1974-09-28 1976-11-02 Toyo Boseki Kabushiki Kaisha Automatic control apparatus for weaving machine
US4177838A (en) * 1978-04-06 1979-12-11 Appalachian Electronic Instruments, Inc. Stop motion system for high speed looms and the like
US4248272A (en) * 1979-10-25 1981-02-03 Appalachian Electronic Instruments, Inc. Shed sensing stop motion system for high speed looms
DE3536991C1 (en) * 1985-10-17 1987-01-02 Sipra Patent Beteiligung Textile web monitoring device for registering defects
FR2592067A1 (en) * 1985-12-19 1987-06-26 Saurer Diederichs Sa Device for detecting breakage of the warp yarns for a loom
US4849643A (en) * 1987-09-18 1989-07-18 Eaton Leonard Technologies Optical probe with overlapping detection fields
US5008555A (en) * 1988-04-08 1991-04-16 Eaton Leonard Technologies, Inc. Optical probe with overlapping detection fields
IT1226331B (en) * 1988-07-15 1991-01-08 Vamatex Spa LASER ELECTRONIC GUARD GUARD DEVICE.
CH679866A5 (en) * 1988-10-19 1992-04-30 Benninger Ag Maschf
CH687110A5 (en) * 1991-09-10 1996-09-13 Luwa Ag Zellweger A method for creating a Stoerungsdiagnose on production machines and application of the method to textile machinery.
DE10161502A1 (en) * 2001-12-14 2003-06-26 Arteva Tech Sarl Method and device for the continuous determination and localization of thread defects of a thread sheet running in one plane
US7204137B1 (en) * 2003-08-20 2007-04-17 Essex, Inc. Thread breakage detection systems and methods
DE102006035251A1 (en) * 2006-07-26 2008-01-31 Vienco Gmbh Method and arrangement for determining the yarn quality and / or package quality of a running thread on the basis of laser Doppler anemometry
CN106498609B (en) * 2017-01-10 2018-04-17 吴江市兴业纺织有限公司 A kind of secondary Weft feeler of water-jet loom and its application
JP6789187B2 (en) * 2017-07-07 2020-11-25 東京エレクトロン株式会社 Substrate warpage detection device and substrate warpage detection method, and substrate processing device and substrate processing method using these

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124289A (en) * 1964-03-10 Detection system
GB691069A (en) * 1950-08-01 1953-05-06 Gen Electric Co Ltd Improvements in or relating to optical apparatus for detecting the occurrence of broken threads, filaments or the like
US3401267A (en) * 1964-06-26 1968-09-10 Milton A. Engle Yarn breakage detector
US3536926A (en) * 1966-04-22 1970-10-27 Exatest Messtechnik Electro-optical method and apparatus for measuring the lateral dimension of relatively narrow elements moving longitudinally of themselves
US3345812A (en) * 1966-11-23 1967-10-10 Gen Time Corp Strand break detector
NL6700367A (en) * 1967-01-11 1968-02-26
US3543360A (en) * 1968-12-13 1970-12-01 Appalachian Electronic Instr Yarn inspector
FR2061848A5 (en) * 1969-06-27 1971-06-25 Fiorucci Georges
US3717771A (en) * 1971-04-02 1973-02-20 Lindly & Co Inc System for detecting defects in continuous traveling material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2446918C2 (en) * 2006-10-13 2012-04-10 Кеннаметал Инк. Modular drilling tool and method of its production

Also Published As

Publication number Publication date
IT964166B (en) 1974-01-21
DE2240112B2 (en) 1977-04-07
US3818236A (en) 1974-06-18
SE355608B (en) 1973-04-30
CH553270A (en) 1974-08-30
DE2240112A1 (en) 1973-03-01
FR2150357A1 (en) 1973-04-06
FR2150357B1 (en) 1976-08-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees