GB1367731A - Element position detector system - Google Patents

Element position detector system

Info

Publication number
GB1367731A
GB1367731A GB1466272A GB1466272A GB1367731A GB 1367731 A GB1367731 A GB 1367731A GB 1466272 A GB1466272 A GB 1466272A GB 1466272 A GB1466272 A GB 1466272A GB 1367731 A GB1367731 A GB 1367731A
Authority
GB
United Kingdom
Prior art keywords
gate
nand gate
jacks
pulse
jack
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
GB1466272A
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.)
Boeing North American Inc
Original Assignee
North American Rockwell Corp
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 North American Rockwell Corp filed Critical North American Rockwell Corp
Publication of GB1367731A publication Critical patent/GB1367731A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B35/00—Details of, or auxiliary devices incorporated in, knitting machines, not otherwise provided for
    • D04B35/10—Indicating, warning, or safety devices, e.g. stop motions
    • D04B35/18—Indicating, warning, or safety devices, e.g. stop motions responsive to breakage, misplacement, or malfunctioning of knitting instruments
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D3/00—Control of position or direction
    • G05D3/12—Control of position or direction using feedback
    • G05D3/20—Control of position or direction using feedback using a digital comparing device

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1367731 Knitting machines NORTH AMERICAN ROCKWELL CORP 29 March 1972 [30 April 1971] 14662/72 Heading D1C In a circular knitting machine wherein the pattern jacks 10 are either raised to knit position or left in non-knit position, a detector system projects light against the edges of jacks when in the non-knit position and collects a portion of the light reflected thereby to generate a voltage output which indicates the presence of a jack in this position. As shown, jacks 10 are in a 1x1 select position such that alternate needles will knit. Light conducted from a source 20 impinges on jacks in their lower position and light reflected is conducted back to photocell 21 or the like by fibre optic cables 13, 14. The pulse from photo cell 21 passes to a one shot multi-vibrator 25 which delivers a pulse of constant amplitude and length to NAND gate 26 and AND gate 27. A second pulse comes from the command system controlling the pulsing of individual jack actuator mechanisms at each yarn feed and is fed to NAND gate 26 and AND gate 28. When there is no fault, the two pulses will coincide at NAND gate 26 giving no output so that there will be no output from AND gates 27, 28. If there is wrongly no jack in the down position there will be no pulse from the sensor and AND gate 28 will receive pulses from NAND gate 26 and the command system indicating an up error. Similarly if a jack is wrongly in the down position AND gate 27 will receive pulses from NAND gate 26 and the sensor indicating a down error. OR gate 29 will give an output indicating all errors.
GB1466272A 1971-04-30 1972-03-29 Element position detector system Expired GB1367731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13910471A 1971-04-30 1971-04-30

Publications (1)

Publication Number Publication Date
GB1367731A true GB1367731A (en) 1974-09-25

Family

ID=22485148

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1466272A Expired GB1367731A (en) 1971-04-30 1972-03-29 Element position detector system

Country Status (12)

Country Link
US (1) US3771325A (en)
BE (1) BE782879A (en)
BR (1) BR7202579D0 (en)
CA (1) CA956716A (en)
CH (1) CH549677A (en)
DE (1) DE2220786A1 (en)
ES (1) ES402249A1 (en)
FR (1) FR2136749A5 (en)
GB (1) GB1367731A (en)
IT (1) IT952383B (en)
NL (1) NL7204154A (en)
ZA (1) ZA721520B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725437A (en) * 1994-09-29 1998-03-10 Lorraine C. McCarty Billiard/pool cue

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027982A (en) * 1975-04-23 1977-06-07 Kyodo Denshi Kogyo Co., Ltd. Needle detector for circular knitting machines
US4091280A (en) * 1976-09-13 1978-05-23 The United States Of America As Represented By The Secretary Of The Navy Fiber optic position sensing and indicating apparatus for electrical interference sensitive environments
US4371783A (en) * 1980-11-03 1983-02-01 Hoffmann-La Roche Inc. Multichannel fiber optic light guide for capsule inspection
US4499649A (en) * 1982-08-11 1985-02-19 Usm Corporation All lead sensor
US4549087A (en) * 1982-12-27 1985-10-22 Usm Corporation Lead sensing system
US4547666A (en) * 1983-01-19 1985-10-15 National Computer Systems, Inc. Mark array sense reader with sequential output signals
US4938495A (en) * 1987-02-20 1990-07-03 Beasley Donald R Trailer hitch positioning apparatus
US4852901A (en) * 1987-02-20 1989-08-01 Beasley Donald R Trailer hitch positioning apparatus
IT1257196B (en) * 1992-05-26 1996-01-10 DEVICE FOR THE CONTINUOUS CONTROL OF THE STRUCTURE AND INTEGRITY OF THE NEEDLES DURING THE OPERATION OF A KNITTING MACHINE.
AU6633598A (en) 1997-05-15 1998-12-08 Nanomotion Ltd. Optical position monitor for knitting machines
AU2711697A (en) * 1997-05-15 1998-12-08 Nanomotion Ltd. Knitting machine
ITMI981228A1 (en) * 1998-06-03 1999-12-03 Matec Spa PROCEDURE FOR VERIFYING THE SELECTION OF NEEDLES OF A CYLINDER OF NEEDLES, PARTICULARLY FOR MACHINES FOR SHOES AND KNITWEAR
DE19924924A1 (en) * 1999-05-31 2000-12-07 Herbst Protechna Gmbh Light scanning head for needles in knitting machines, associated light scanning system and method for checking needles in knitting machines with the light scanning system
US6259357B1 (en) 1999-12-30 2001-07-10 Joseph Heider Trailer hitch positioning apparatus
JP2003082565A (en) * 2001-09-11 2003-03-19 Precision Fukuhara Works Ltd Self-propelled texture-setting apparatus of circular knitting machine
US6769709B1 (en) * 2003-09-03 2004-08-03 Alan L. Piper Trailer hitch alignment system and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493543A (en) * 1947-09-08 1950-01-03 Brush Dev Co Monitoring system of comparator type
GB1048585A (en) * 1962-07-20 1966-11-16 North Atlantic Res Products Lt Apparatus for the automatic dimensional inspection of an object
DE1585181B1 (en) * 1963-10-21 1970-02-19 Morat Gmbh Franz Circular knitting machine with a program control device
DE1585215A1 (en) * 1965-03-06 1972-03-30 Morat Gmbh Franz Circular knitting machine, in particular circular knitting machine
US3449931A (en) * 1965-10-01 1969-06-17 Agency Ind Science Techn Method and device for detecting a break in knitting needles
GB1200473A (en) * 1967-09-26 1970-07-29 Monk Sutton In Ashfield Ltd Sa Controller for knitting machines
AT303949B (en) * 1968-04-08 1972-12-11 Sick Erwin Device for monitoring circular knitting machines
GB1186985A (en) * 1968-07-22 1970-04-08 Electronit Ltd Inspection Apparatus in Circular Knitting Machine.
US3646542A (en) * 1970-02-25 1972-02-29 Russell Mills Inc Monitor systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5725437A (en) * 1994-09-29 1998-03-10 Lorraine C. McCarty Billiard/pool cue
US6162128A (en) * 1994-09-29 2000-12-19 The Lorraine C. Mccarty Trust Billiard/pool cue

Also Published As

Publication number Publication date
ES402249A1 (en) 1975-03-01
IT952383B (en) 1973-07-20
BE782879A (en) 1972-09-01
NL7204154A (en) 1972-11-01
ZA721520B (en) 1972-11-29
CH549677A (en) 1974-05-31
FR2136749A5 (en) 1972-12-22
BR7202579D0 (en) 1973-06-07
US3771325A (en) 1973-11-13
DE2220786A1 (en) 1972-11-16
CA956716A (en) 1974-10-22

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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