Measuring and testing – Surface and cutting edge testing – Roughness
Patent
1976-06-10
1977-05-24
Gill, James J.
Measuring and testing
Surface and cutting edge testing
Roughness
G01B 528
Patent
active
040247554
ABSTRACT:
A deflector roll for measuring and checking the flatness of sheet metal under tension and as it passes round the roll comprises a non rotatable inner portion carrying axially spaced radial stress detectors in axially spaced measurement zones spaced by neutral zones, and a continuous rotatable outer envelope to be contacted by the sheet and to transmit the radial stresses to the detecting devices, the envelope having an axially variable flexibility such that it is less flexible in those portions which cover the measurement zones than in those portions which cover the neutral zones.
REFERENCES:
patent: 2896196 (1959-07-01), Hartford et al.
patent: 3377828 (1968-04-01), Harmon
Ciarlante Anthony V.
Gill James J.
Secim
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