FIELD: test equipment. SUBSTANCE: device has clamps 2,3 for specimens 4, 5, hydraulic cylinders 6, 8, guide 11, platform 12, provided with drive 13. The specimens are compressed by hydraulic cylinder 6. Hydraulic cylinder 8 is used for generating shift force. Device may be used for testing specimens, made of different materials, for example, rocks. Testings are conducted not only for permanent angle between surface, where specimen and counterspecimen are in contact, but when regulating this angle. EFFECT: widened functional capabilities. 1 dwg
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