Apparatus to measure the bending length and bending rigidity...

Details Apparatus to measure the bending length and bending rigidity... Apparatus to measure the bending length and bending rigidity...

G - Physics

01

N

73/53

G01N 33/36 (2006.01) G01N 3/20 (2006.01)

Patent

CA 1319530

ABSTRACT An apparatus to measure the bending length and bending rigidity of a piece of fabric comprising a generally planar surface upon which the piece of fabric is moved. The surface terminates at one end with an edge over which a leading end of the fabric passes. An optical device defines a plane extending downwardly from the surface edge at approximately 41.5 degrees. The optical device detects when the plane is intersected by the leading end of the fabric when, after a sufficient length of the piece of fabric has passed beyond the surface edge to cause bending of the fabric piece, the leading edge of the fabric intersects the plane.

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