FIELD: mining industry, determination of mechanical characteristics of rocks, for example, of dumped rocks. SUBSTANCE: gear includes frame, anchor system, devices to transmit loads, casing with rollers, die. Parallel link mechanism mounted on frame for vertical and horizontal movement is employed to transmit horizontal forces. Horizontal tie-rods of parallel link mechanism are linked to casing with rollers and are fitted with separable horizontal tie-rod hinged to die. EFFECT: enhanced informativity of investigation thanks to rise of functional potential of gear, high productivity and mobility of gear, low cost and reduced work input. 3 dwg
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