Flatness detector

Details Flatness detector Flatness detector

1993-03-11

1995-01-10

Williams, Hezron E.

Measuring and testing

With fluid pressure

Dimension, shape, or size

72 17, 72 10, G01B 1322

Patent

active

053796314

ABSTRACT:
A flatness detector has a fixed shaft and a plurality of rotary rings loosely fitted over the shaft and adjacent to each other along an axis of the shaft, a pneumatic bearing being defined by a gap between the rings and the shaft. The shaft is provided with heating means for heating the shaft to prevent shrinkage of a rolled strip due to temperature variations of the strip as well as bending means at opposite ends of the shaft for bending the shaft in a predetermined direction so as to prevent formation of lengthwise wrinkles on the rolled strip.

REFERENCES:
patent: 3499306 (1970-03-01), Pearson
patent: 3587268 (1971-06-01), Bricmont et al.
patent: 3877270 (1975-04-01), Marten
patent: 3990284 (1976-11-01), Barten
patent: 4366720 (1983-01-01), Berger et al.
patent: 4400957 (1983-08-01), Carlstedt et al.
patent: 4428244 (1984-01-01), Takeda
patent: 4478062 (1984-10-01), Huzyak
patent: 4750343 (1988-06-01), Richter et al.
Japanese utility model 2nd publication, Jan. 7, 1992, #4-249.
Patent Abstract of Japan, vol. 16, No. 123 (P-1330) Mar. 1992 & JP-A-32 89 510 (Showa Alum) Dec. 19, 1991.
Japanese Utility Model 2nd Publication No. 4-249 Published on Jan. 7, 1992, Abridged Translation.

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