GB995343A - Method and apparatus for sensing moisture content - Google Patents

Method and apparatus for sensing moisture content

Info

Publication number
GB995343A
GB995343A GB9396/61A GB939661A GB995343A GB 995343 A GB995343 A GB 995343A GB 9396/61 A GB9396/61 A GB 9396/61A GB 939661 A GB939661 A GB 939661A GB 995343 A GB995343 A GB 995343A
Authority
GB
United Kingdom
Prior art keywords
moisture content
march
bridge
calender
thickness detector
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
GB9396/61A
Inventor
Harold Catling
Islwym Davies
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.)
Cotton Silk and Man Made Fibres Research Association
Original Assignee
Cotton Silk and Man Made Fibres 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 Cotton Silk and Man Made Fibres Research Association filed Critical Cotton Silk and Man Made Fibres Research Association
Priority to GB9396/61A priority Critical patent/GB995343A/en
Priority to US179319A priority patent/US3231940A/en
Priority to CH307862A priority patent/CH411400A/en
Priority to FR891209A priority patent/FR1318943A/en
Publication of GB995343A publication Critical patent/GB995343A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

995, 343. Lap forming machines. COTTON, SILK & MAN-MADE FIBRES RESEARCH ASSOCIATION. March 13, 1962 [March 15,1961], No. 9396/61. Heading D1N. [Also in Divisions G1 and G3] A scutcher, incorporating a thickness control system as disclosed in Specification 936,178, is modified so as to compensate for the moisture content of the incoming material by altering the relative positions of the thickness detector 36 and the calender roller 14. A transducer 36a of the thickness detector is mounted on a pivoted arm 43 positioned by a screw 44 driven through a worm-and-wheel 46, 47 by a servomotor 45. The moisture content of the material is determined by the resistance between a calender roller 15 and calender rollers 14, 16 forming one arm CD of a bridge ABCD, which is balanced by a non-linearly wound feedback rheostat 49, adjusted by the motor 45 which is energized through an amplifier 53 by the out-of-balance voltage BD of the bridge.
GB9396/61A 1961-03-15 1961-03-15 Method and apparatus for sensing moisture content Expired GB995343A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9396/61A GB995343A (en) 1961-03-15 1961-03-15 Method and apparatus for sensing moisture content
US179319A US3231940A (en) 1961-03-15 1962-03-13 Control mechanism
CH307862A CH411400A (en) 1961-03-15 1962-03-14 Apparatus for progressively sensing the moisture content of a material in the form of a tape
FR891209A FR1318943A (en) 1961-03-15 1962-03-15 Regulatory mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9396/61A GB995343A (en) 1961-03-15 1961-03-15 Method and apparatus for sensing moisture content

Publications (1)

Publication Number Publication Date
GB995343A true GB995343A (en) 1965-06-16

Family

ID=9871171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9396/61A Expired GB995343A (en) 1961-03-15 1961-03-15 Method and apparatus for sensing moisture content

Country Status (3)

Country Link
US (1) US3231940A (en)
CH (1) CH411400A (en)
GB (1) GB995343A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4275483A (en) * 1979-12-05 1981-06-30 Roberson James H Control apparatus for a carding machine
DE102013110916A1 (en) * 2013-10-01 2015-04-02 Trützschler GmbH & Co Kommanditgesellschaft Winding machine for producing cotton wool and method for winding slivers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US278488A (en) * 1883-05-29 Hygrometric governor for railway-heads
DE720200C (en) * 1938-07-01 1942-04-28 Aeg Device on lines to regulate the delay
US2361217A (en) * 1941-01-02 1944-10-24 Us Rubber Co Apparatus for producing highly uniform sliver
NL61234C (en) * 1944-07-25
CH284356A (en) * 1950-10-10 1952-07-31 Rieter Joh Jacob & Cie Ag Method and device for regulating the amount of fiber conveyed per unit of time in a textile machine.
US2805449A (en) * 1954-07-23 1957-09-10 Jr Albert E Martin Thickness variation measuring device
US2981986A (en) * 1955-12-27 1961-05-02 Special Instr Lab Inc Control apparatus and methods
GB859514A (en) * 1958-06-19 1961-01-25 British Cotton Ind Res Assoc Improvements in or relating to the production of textile yarns
US3109204A (en) * 1958-10-07 1963-11-05 Linnert Arthur Device for controlling the uniformity of textile yarns
GB936178A (en) * 1958-10-07 1963-09-04 Cotton Silk & Man Made Fibres Improvements in or relating to the spinning of textile yarns

Also Published As

Publication number Publication date
CH411400A (en) 1966-04-15
US3231940A (en) 1966-02-01

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