GB678430A - Improvements in method of and apparatus for determining moisture content of tobacco - Google Patents

Improvements in method of and apparatus for determining moisture content of tobacco

Info

Publication number
GB678430A
GB678430A GB6667/51A GB666751A GB678430A GB 678430 A GB678430 A GB 678430A GB 6667/51 A GB6667/51 A GB 6667/51A GB 666751 A GB666751 A GB 666751A GB 678430 A GB678430 A GB 678430A
Authority
GB
United Kingdom
Prior art keywords
tobacco
moisture content
electrodes
determining moisture
measuring
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
GB6667/51A
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.)
Brown and Williamson Holdings Inc
Original Assignee
American Tobacco Co
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 American Tobacco Co filed Critical American Tobacco Co
Publication of GB678430A publication Critical patent/GB678430A/en
Expired legal-status Critical Current

Links

Classifications

    • 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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

678,430. Electric tests and measurements. AMERICAN TOBACCO CO. March 20, 1951 [April 20, 1950], No. 6667/51. Class 37. Apparatus for measuring the moisture content of tobacco in a bin 22 comprises an electrode assembly 6 containing two rows of electrodes joined in parallel, supported from a box of large area, attached to a piston 5 in an air cylinder 2, so that the electrodes are forced into the tobacco under pressure for a predetermined period before measuring the current flowing through the tobacco when an E.M.F. is applied to the electrodes.
GB6667/51A 1950-04-20 1951-03-20 Improvements in method of and apparatus for determining moisture content of tobacco Expired GB678430A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US157034A US2587771A (en) 1950-04-20 1950-04-20 Apparatus for determining moisture content of tobacco

Publications (1)

Publication Number Publication Date
GB678430A true GB678430A (en) 1952-09-03

Family

ID=22562100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6667/51A Expired GB678430A (en) 1950-04-20 1951-03-20 Improvements in method of and apparatus for determining moisture content of tobacco

Country Status (2)

Country Link
US (1) US2587771A (en)
GB (1) GB678430A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680834A (en) * 1950-08-21 1954-06-08 Grover P Burns Testing apparatus
US2933037A (en) * 1950-09-29 1960-04-19 Case Co J I Bale ventilating means
GB807993A (en) * 1954-10-23 1959-01-28 Nat Res Dev Improvements in and relating to the measurement of moisture content of granular materials
US3035226A (en) * 1954-11-17 1962-05-15 Strandberg Eng Lab Inc Method for determining textile lap weights
US2975361A (en) * 1958-03-05 1961-03-14 Charles E Holaday Apparatus for determining the moisture content of granular and fibrous materials
US2984784A (en) * 1958-05-06 1961-05-16 Moisture Register Company Moisture testing instrument
US3005154A (en) * 1958-11-06 1961-10-17 Moore Milford Corp Moisture testing electrode assembly
US4267506A (en) * 1979-01-02 1981-05-12 Shiell Thomas J Collinear four-point probe head and mount for resistivity measurements
US4288742A (en) * 1979-12-18 1981-09-08 Dartmouth College Electrical moisture sensor
US4383538A (en) * 1981-04-10 1983-05-17 R. J. Reynolds Tobacco Company Apparatus for moisture and heat conditioning compacted tobacco mass
CN102590286A (en) * 2012-02-28 2012-07-18 吉林大学 Four-electrode testing device and measuring method for water content of tobacco
CN110082395B (en) * 2019-04-28 2022-07-01 云南中烟工业有限责任公司 Fresh tobacco leaf moisture detection method based on composite resistor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1610563A (en) * 1926-04-19 1926-12-14 Robert L Mcilvaine Apparatus for ascertaining moisture
DE509982C (en) * 1926-05-22 1930-10-15 Axel C Andersen Apparatus for determining the moisture content of cellulose material webs or the like.
US2063840A (en) * 1933-08-25 1936-12-08 Charles Tagliabue Mfg Co Moisture testing device
US2469736A (en) * 1948-02-24 1949-05-10 Marvin L Mcbrayer Electronic apparatus for determining moisture content in materials

Also Published As

Publication number Publication date
US2587771A (en) 1952-03-04

Similar Documents

Publication Publication Date Title
GB678430A (en) Improvements in method of and apparatus for determining moisture content of tobacco
GB827004A (en) Device for measuring the moisture content of tobacco and like fibrous material
GB1469504A (en) Testing of cigarettes
GB1239408A (en)
GB804323A (en) Improvements relating to the detection of surface cracks in electrically conducting materials
GB709177A (en) Improved method of and apparatus for determining moisture content of fibrous or other materials
GB760486A (en) Improvements in or relating to capacitors for testing and like apparatus
GB647990A (en) Improvements in or relating to apparatus for use in determining the moisture contentof textile materials
GB832242A (en) Improvements in or relating to dimension indicating devices
GB620822A (en) Improvements relating to high voltage insulators
GB569439A (en) Moisture testing device for determining the moisture content of fibrous materials, when stationary or in motion
GB592450A (en) Apparatus for determining the moisture content of materials
GB678678A (en) Improvements relating to the testing of sealed envelopes using high frequency high voltage
SU483631A1 (en) Electrostatic field tension measuring device
GB1096269A (en) A method and a device for marking materials
GB909414A (en) Apparatus for the detection of electrically active components in an ambient
GB697253A (en) Electrical proximity switches
GB794967A (en) A test cell for use in the capacitive measurement of the moisture content of a fluent material
GB681675A (en) Improvements in and relating to leak detectors
CH289514A (en) Device for measuring and monitoring an operating current.
JPS5343144A (en) Ignition plug tester
GB842210A (en) Improvements relating to high voltage electrodes
GB502525A (en) Appliance for determining the moisture content of paper, or the like, electrically
GB652133A (en) Improvements in and relating to the electrical detection of vapours and the like
GB634912A (en) Improvements in electric battery testing apparatus