FIELD: testing engineering.
SUBSTANCE: device comprises plate and bearing rollers mounted parallel to each other on one of the sides of the plate. The device is additionally provided with plates so that its axis is perpendicular to the axes of the bearing rollers. The second roller is mounted on the outer side of the additional plate parallel to the main rollers. The planks are set at the ends of the rollers and are used for cooperation with the sides of the plates.
EFFECT: enhanced reliability.
1 dwg
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