FR2275766A1 - Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes - Google Patents

Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes

Info

Publication number
FR2275766A1
FR2275766A1 FR7421504A FR7421504A FR2275766A1 FR 2275766 A1 FR2275766 A1 FR 2275766A1 FR 7421504 A FR7421504 A FR 7421504A FR 7421504 A FR7421504 A FR 7421504A FR 2275766 A1 FR2275766 A1 FR 2275766A1
Authority
FR
France
Prior art keywords
container
weight
weights
compensating
air
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.)
Granted
Application number
FR7421504A
Other languages
French (fr)
Other versions
FR2275766B1 (en
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.)
Cegelec SA
Original Assignee
Cegelec SA
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 Cegelec SA filed Critical Cegelec SA
Priority to FR7421504A priority Critical patent/FR2275766A1/en
Publication of FR2275766A1 publication Critical patent/FR2275766A1/en
Application granted granted Critical
Publication of FR2275766B1 publication Critical patent/FR2275766B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/02—Food
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F25/00—Devices used by the smoker for controlling the moisture content of, or for scenting, cigars, cigarettes or tobacco
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G01N5/045—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder for determining moisture content

Abstract

Measurements of humidity in substances such as tobacco are performed by circulating a current of hot air at a known temperature through the substance and then determining the loss of weight. Weights for the container maintain a calibrated weight thus simplifying measurements. Air from a blower is passed down a tube containing a heating element. The heated air passes through a diffuser to a drying container (5) and to a thermometer. The container contains a given weight of substance (51) and has a metallic grid bottom (50) through which the air can pass. A handle (52) screwed onto a threaded shaft (54) on the container has a hollow section (55) enclosed by a screw (56) and contains weights (57) to compensate for changes of container weight during usage.
FR7421504A 1974-06-20 1974-06-20 Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes Granted FR2275766A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7421504A FR2275766A1 (en) 1974-06-20 1974-06-20 Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421504A FR2275766A1 (en) 1974-06-20 1974-06-20 Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes

Publications (2)

Publication Number Publication Date
FR2275766A1 true FR2275766A1 (en) 1976-01-16
FR2275766B1 FR2275766B1 (en) 1976-10-22

Family

ID=9140314

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421504A Granted FR2275766A1 (en) 1974-06-20 1974-06-20 Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes

Country Status (1)

Country Link
FR (1) FR2275766A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168623A (en) * 1977-02-07 1979-09-25 Philip Morris Incorporated Method for determining volatile content of a sample
CN103776720A (en) * 2014-02-14 2014-05-07 江苏中烟工业有限责任公司 Evaluation method for moisture keeping performance of cigarette raw materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168623A (en) * 1977-02-07 1979-09-25 Philip Morris Incorporated Method for determining volatile content of a sample
CN103776720A (en) * 2014-02-14 2014-05-07 江苏中烟工业有限责任公司 Evaluation method for moisture keeping performance of cigarette raw materials

Also Published As

Publication number Publication date
FR2275766B1 (en) 1976-10-22

Similar Documents

Publication Publication Date Title
GB1063941A (en) Method of and apparatus for drying tobacco or similar foliate material
US1855774A (en) Humidity measuring
JPS5571919A (en) Measurement of temperature
FR2275766A1 (en) Tobacco humidity measurements by weight loss - drying container with weights compensating for container weight changes
GB1163333A (en) Method and Apparatus for Determining the Temperature of Tobacco Leaf Material
US4559823A (en) Device and method for measuring the energy content of hot and humid air streams
JPS57186147A (en) Simultaneous measurement of heat quantity change and thermogravimetric change
US3973431A (en) Device for the rapid measuring of the degree of humidity of substances
US2599276A (en) Wick hypsometer
GB1279656A (en) A method of and apparatus for determining the moisture content of moving material
US3191313A (en) Measurement and control of moisture
FR2275767A1 (en) Tobacco humidity measurement by weight loss - heater controlled by auto transformer to dry tobacco
CN1074127C (en) Water activity detecting method and instrument
SU672553A1 (en) Device for determining moisture-content by weight measurements
SU928291A2 (en) Salt type humid air generator
SU866368A1 (en) Method of regulating article-drying process
GB921887A (en) Method of and apparatus for the determination of steam moisture
JPS5782747A (en) Water measuring method for grain
JPS5523477A (en) Measuring instrument for thermal resistance
JPS54143184A (en) Temperature measurement
JPH0259645A (en) Method for measuring water content in sample
JPS556263A (en) Thermal analyzer
GB1454301A (en) Methods and apparatus for measuring and/or controlling the moisture content of a material during a drying process
Comings Contributions of TK Sherwood and Associates to the Field of Drying (Part 3, Final)
CS197913B1 (en) Electrodrying laboratory facility

Legal Events

Date Code Title Description
ST Notification of lapse