Method and apparatus for locating improperly positioned or bent

Geometrical instruments – Area integrators – Electrical

Patent

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Details

33147K, 33178F, G01B 500

Patent

active

RE0300756

ABSTRACT:
A method and apparatus for locating improperly positioned or bent rolls among a set of rolls which define a confined path of travel for a workpiece, particularly useful for checking a straight or curved roll-rack of a continuous-casting machine. The apparatus may be propelled through the path defined by the rolls by any suitable mechanism. For example, as applied to a roll-rack, the apparatus may be attached to the upper end of a starter bar and propelled with the bar through the rack, or the apparatus may be suspended from a hoist and pulled through the rack. The apparatus includes a housing and means within the housing for measuring the gap between work-engaging faces of the rolls and-or, when used with a curved roll-rack, means for measuring the angular relation of adjacent bottom rolls. The latter measurement is used in determining whether the work-engaging faces lie on arcs of the intended radii. Bent rolls are located by observing different measurements when the apparatus is moved in opposite directions through the path of travel.

REFERENCES:
patent: 2616183 (1952-11-01), Roberts
patent: 3496644 (1970-02-01), Short
patent: 3937271 (1976-02-01), Akiba et al.

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