Geometrical instruments – Gauge – Straightness – flatness – or alignment
Patent
1994-12-21
1997-04-08
Bennett, G. Bradley
Geometrical instruments
Gauge
Straightness, flatness, or alignment
33DIG21, 25055945, 250223R, 356371, G01B 1130, G01B 1106
Patent
active
056176430
ABSTRACT:
An apparatus for continuously and automatically measuring deformation and warp of a shaped electrode plate for electrolysis before the electrode plate includes means for lifting shaped electrode plates 1 hanging from crossbars 2 one by one to a predetermined measurement position by a suspending apparatus having a hanger mechanism and adjusting it about a measurement vertical plane position; for so freely suspending the electrode plate 1 vertically about the underside of a crossbar 2 that the electrode plate is not subject to deformation caused by the influence of its own weight or external forces; and a computing device 23 for continuously scanning the flatness of the electrode plate 1 by a moving mechanism which moves sensors 11a, 11b which measure distances between the electrode plate 1 and planes parallel to and facing the front and rear sides of the electrode plate 1 respectively without making contact with the electrode plate horizontally and vertically over those planes and A/D converting and analyzing measurement data obtained by this scanning.
REFERENCES:
patent: 3792930 (1974-02-01), Obenreder
patent: 4233745 (1980-11-01), Ramon et al.
patent: 4271699 (1981-06-01), Williamson
patent: 5233761 (1993-08-01), Guaraldi et al.
patent: 5293216 (1994-03-01), Moslehi
Kato Yoshinobu
Kobayashi Hideaki
Oonishi Mitsuharu
Bennett G. Bradley
Sumitomo Metal Mining Company Limited
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