IT1168873B - Electronic boosting control for a glass forehearth - Google Patents

Electronic boosting control for a glass forehearth

Info

Publication number
IT1168873B
IT1168873B IT48280/83A IT4828083A IT1168873B IT 1168873 B IT1168873 B IT 1168873B IT 48280/83 A IT48280/83 A IT 48280/83A IT 4828083 A IT4828083 A IT 4828083A IT 1168873 B IT1168873 B IT 1168873B
Authority
IT
Italy
Prior art keywords
forehearth
temp
electrodes
adjacent
sidewalls
Prior art date
Application number
IT48280/83A
Other languages
Italian (it)
Other versions
IT8348280A0 (en
Inventor
Marvin Lee Barkhau
Philip Donald Perry
Roland Francis Pimn
Original Assignee
Owens Illinois 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 Owens Illinois Inc filed Critical Owens Illinois Inc
Priority to IT48280/83A priority Critical patent/IT1168873B/en
Publication of IT8348280A0 publication Critical patent/IT8348280A0/en
Application granted granted Critical
Publication of IT1168873B publication Critical patent/IT1168873B/en

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Abstract

Appts. for heating molten glass flowing through the conditioning section of a forehearth comprises (a) several pairs of electrodes extending through the sidewalls of the forehearth with their ends terminating adjacent the sidewalls; (b) a circuit connected to the electrodes to provide Joule effect heating of the glass adjacent to the hearth sidewalls, and a source of current and a current controller; (c) two temperature sensors, one positioned in the forehearth at its centre line, adjacent to the end of the conditioning centre, including a thermocouple immersed in the glass; one extending into the forehearth adjacent its sidewall in alignment with the first sensor; (d) a settable override circuit connected to the circuit supply appts. and appts. connecting the override circuit with the second temp. sensor for adjusting the current to the electrodes so as to provide a selected sidewall temp. A system is provided in which a set current level selected by operator can be applied to electrodes positioned in the conditioning section of the furnace so that the sidewall temp. can be brought into agreement with the centre line temp. providing optimum conditioning.
IT48280/83A 1983-05-12 1983-05-12 Electronic boosting control for a glass forehearth IT1168873B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT48280/83A IT1168873B (en) 1983-05-12 1983-05-12 Electronic boosting control for a glass forehearth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT48280/83A IT1168873B (en) 1983-05-12 1983-05-12 Electronic boosting control for a glass forehearth

Publications (2)

Publication Number Publication Date
IT8348280A0 IT8348280A0 (en) 1983-05-12
IT1168873B true IT1168873B (en) 1987-05-20

Family

ID=11265655

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48280/83A IT1168873B (en) 1983-05-12 1983-05-12 Electronic boosting control for a glass forehearth

Country Status (1)

Country Link
IT (1) IT1168873B (en)

Also Published As

Publication number Publication date
IT8348280A0 (en) 1983-05-12

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Effective date: 19970530