Clamping device for holding a test sample free of any bending moments
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United States of America Patent
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Aug 18, 1992
Grant Date -
N/A
app pub date -
Apr 25, 1991
filing date -
Dec 3, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A clamping device for holding a sample to be tested in a testing machine is so constructed that an automatic alignment of the clamping device relative to a vertical load application axis is assured to avoid the introduction of undesirable bending moments into the test sample. Thus, tension and/or compression and/or torsion loads can be applied to the test sample without interfering bending moments. For this purpose a clamping shaft is journalled in a support member for journalling about a first axis (9) and the support member is journalled in a mounting buck for journalling about a second axis (13). The mounting buck is secured to the frame of the testing machine. The two journal axes (9, 13) extend perpendicularly to the load application axis (3) of the testing machine. Further, the two journal axes (9, 13) and the load application axis (3) have a common intersection (21).
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