Metriguard Inc.

Wayne P Waldher

James David Logan

Ryan D Baldwin

Timothy T Meekhof

Dean A Nelson

Peter A Siebold

Nathaniel D Darnall

David E Abbott

An apparatus for testing panel products in edgewise shear in which the shear stress is applied in a diagonal direction with a first rotational degree of freedom in a first grip means and a second rotational degree of freedom in a second grip means as a first loading configuration. A second loading configuration is provided in which the second rotational degree of freedom of the second grip means is locked in place and motion is prevented. A third preferred method of loading is available in which shear forces in a horizontal direction through a centerline of a specimen, with the centerline in the plane of the specimen and extending across a widest dimension of said specimen. Control and data collection are under computer control and operator safety is enhanced by a locking guard door which is electrically locked while the various parts of the machine are in motion.

Rail shear tester apparatus with multiple loading configurations

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Clarkston, WA, United States of America

Wayne P Waldher