Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1994-03-28
1995-05-30
Chilcot, Jr., Richard E.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
493 37, G01N 320
Patent
active
054192021
ABSTRACT:
A device and method for measuring the force or pressure required to break a score and bend a sheet of paperboard along a pre-formed score line. The device includes means for clamping one portion of the sheet between a pair of stationary plates, with another portion of the sheet extending beyond the plates, and a moveable plate co-planar with, but spaced a short distance from, one of the stationary plates and engageable with the other portion of the sheet. The device includes a mechanism for moving the moveable plate out of the plane of one of the stationary plates, to break the score and bend the sheet at the score line, and a gauge for measuring the force required to bend the paperboard sheet at the score line.
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Howard George M.
McCullin Joseph M.
Rogers Thomas W.
Carpenter Richard W.
Chilcot Jr. Richard E.
Jefferson Smurfit Corporation
Olsen James M.
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