FIELD: bee-keeping. SUBSTANCE: device has rectangular weight-receiving platform with supports, force-measuring unit made in form of a torsion bar. One end of the torsion bar is attached to the handle radially, and its other end is fastened to casing put over it The casing is connected with its edge with arc-shaped guide. Device also has indicator which is provided with roller 9 with pulley 12 which is mounted for rolling by arc-shaped guide. Device has also annular scale 13 and reading index 14 which is disposed onto the handle. EFFECT: improved efficiency of operation. 2 cl, 6 dwg
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