GB1436783A - Apparatus for detecting the boundary between bodies of different emissivity - Google Patents

Apparatus for detecting the boundary between bodies of different emissivity

Info

Publication number
GB1436783A
GB1436783A GB2736873A GB2736873A GB1436783A GB 1436783 A GB1436783 A GB 1436783A GB 2736873 A GB2736873 A GB 2736873A GB 2736873 A GB2736873 A GB 2736873A GB 1436783 A GB1436783 A GB 1436783A
Authority
GB
United Kingdom
Prior art keywords
detector
boundary
bodies
enclosure
thermal
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
GB2736873A
Other languages
English (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.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Publication of GB1436783A publication Critical patent/GB1436783A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
    • G01B11/046—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B18/00—Shaping glass in contact with the surface of a liquid
    • C03B18/02—Forming sheets
    • C03B18/04—Changing or regulating the dimensions of the molten glass ribbon
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/341—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells controlling the movement of a following part
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D5/00—Control of dimensions of material
    • G05D5/04—Control of dimensions of material of the size of items, e.g. of particles
    • G05D5/06—Control of dimensions of material of the size of items, e.g. of particles characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Control Of Position Or Direction (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
GB2736873A 1972-06-09 1973-06-08 Apparatus for detecting the boundary between bodies of different emissivity Expired GB1436783A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26149372A 1972-06-09 1972-06-09
US26149772A 1972-06-09 1972-06-09

Publications (1)

Publication Number Publication Date
GB1436783A true GB1436783A (en) 1976-05-26

Family

ID=26948642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2736873A Expired GB1436783A (en) 1972-06-09 1973-06-08 Apparatus for detecting the boundary between bodies of different emissivity

Country Status (12)

Country Link
US (2) US3764285A (enExample)
JP (1) JPS4962523A (enExample)
AR (1) AR199780A1 (enExample)
AU (1) AU474467B2 (enExample)
BE (1) BE800690A (enExample)
CA (2) CA998132A (enExample)
DE (1) DE2328725C3 (enExample)
FR (1) FR2187710B1 (enExample)
GB (1) GB1436783A (enExample)
IT (1) IT983234B (enExample)
NL (1) NL163760C (enExample)
SU (1) SU649305A3 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008062A (en) * 1973-10-30 1977-02-15 Asahi Glass Co., Ltd. Apparatus for detecting the position of float glass
US4030902A (en) * 1973-11-14 1977-06-21 Central Glass Co., Ltd. Float glass band width control method
DE2506190C2 (de) * 1974-09-26 1985-08-29 Ceda S.p.A., Buttrio, Udine Vorrichtung zur Regelung des Niveaus einer in einem Behälter befindlichen Flüssigkeit, die Infrarotstrahlen aussendet
US3998616A (en) * 1975-02-03 1976-12-21 Ppg Industries, Inc. Manufacture of flat glass having controlled width and nip width
US3957475A (en) * 1975-04-07 1976-05-18 Ppg Industries, Inc. Measuring glass surface temperature during annealing
US4004900A (en) * 1975-09-19 1977-01-25 Ppg Industries, Inc. Manufacture of flat glass at controlled throughput rate
US4332607A (en) * 1980-11-28 1982-06-01 Ppg Industries, Inc. Overhead mechanism for flat glass forming tweel
US4316735A (en) * 1980-11-28 1982-02-23 Ppg Industries, Inc. Position adjustment mechanism for flat glass forming tweel
US4440559A (en) * 1982-06-30 1984-04-03 Ppg Industries, Inc. Apparatus for sensing a glass ribbon edge and method of use
US20070140311A1 (en) * 2005-12-20 2007-06-21 House Keith L Method and apparatus for characterizing a glass ribbon
FR2902878B1 (fr) * 2006-06-27 2008-08-22 Stein Heurtey Installation de mesure de la temperature du ruban dans une etenderie de recuisson de verre plat,et procede de conduite d'une etenderie.
FR3048692B1 (fr) * 2016-03-08 2018-04-20 Fives Stein Installation de production de verre plat comprenant une installation de mesure en continu de la temperature du verre et procede de reglage d'une telle installation de mesure
TWI788338B (zh) * 2017-04-04 2023-01-01 美商康寧公司 用於製造玻璃片的設備與方法及用於拉引玻璃帶的拉引設備
US11390552B1 (en) * 2021-11-12 2022-07-19 James W. Masten, Jr. Thermophysical float glass process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3535165A (en) * 1968-03-06 1970-10-20 Webb James E Gas cooled high temperature thermocouple

Also Published As

Publication number Publication date
BE800690A (fr) 1973-12-10
US3794477A (en) 1974-02-26
CA998132A (en) 1976-10-05
DE2328725A1 (de) 1974-01-03
NL7307320A (enExample) 1973-12-11
NL163760B (nl) 1980-05-16
AU5575173A (en) 1974-11-21
FR2187710A1 (enExample) 1974-01-18
US3764285A (en) 1973-10-09
DE2328725C3 (de) 1976-01-08
AR199780A1 (es) 1974-09-30
JPS4962523A (enExample) 1974-06-18
SU649305A3 (ru) 1979-02-25
FR2187710B1 (enExample) 1977-04-29
CA1005641A (en) 1977-02-22
IT983234B (it) 1974-10-31
NL163760C (nl) 1980-10-15
AU474467B2 (en) 1976-07-22
DE2328725B2 (de) 1975-05-22

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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