FIELD: construction.
SUBSTANCE: device consists of cylindrical hollow body, joined in its lower part to extended cap, upper part of body ends with stop coupling, annular recess of which hosts balls-fixators. Body cavity holds falling part of hammer, and in order to vary mass of hammer falling part, a set of weight is located in its cavity. Upper part of hammer is arranged with bulge for thrust of weight ring in process of lifting, and lower part of hammer ends with circular bore for location of balls-fixators in it.
EFFECT: possibility to replace expensive static tests for dynamic ones.
2 dwg
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