| 摘要 |
PCT No. PCT/FR87/00188 Sec. 371 Date Jan. 21, 1988 Sec. 102(e) Date Jan. 21, 1988 PCT Filed May 29, 1987 PCT Pub. No. WO87/07379 PCT Pub. Date Dec. 3, 1987.An apparatus for testing the resistance to cleavage of cardboard tubes which have previously been cut into test pieces which includes a key mandrel which is mounted free to rotate, at least one sleeve for each test piece having a different outer diameter, the inner diameter of at least one sleeve being approximately equal to the outer diameter of a test piece so that for each test piece there corresponds at least one sleeve intended to house the test piece. The key mandrel is adapted to receive each test piece surrounded by a corresponding sleeve. A drive device and belt are provided to rotatably drive an assembly which includes the key mandrel and a test piece housed in a corresponding sleeve.
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