Float glass ribbon monitor enhancement method and apparatus

Details Float glass ribbon monitor enhancement method and apparatus Float glass ribbon monitor enhancement method and apparatus

1982-02-24

1984-11-06

McGraw, Vincent P.

Optics: measuring and testing

By polarized light examination

65158, G01N 2121

Patent

active

044809174

ABSTRACT:
Monitoring of the glass ribbon edge location in a float glass forming chamber is expedited by enhancing contrast between the glass and the molten metal on which it floats by viewing emitted radiation through a horizontal polarizing filter from adjacent areas of the glass and metal in a region shaded from reflected light.

REFERENCES:
patent: 3462224 (1969-08-01), Woods et al.
patent: 4008062 (1977-02-01), Nishikori et al.
patent: 4020695 (1977-05-01), Roney
patent: 4303435 (1981-12-01), Sleighter
Worthing, A. G., "Temperature Radiation Emissivities and Emittances," from Temperature; Its Movement and Control in Science and Industry, Reinhold, 1941, pp. 1164-1187.

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