FIELD: weight-measuring equipment. SUBSTANCE: during spring balance overloading spring 7 is detached and located on its loading platform 3 with rigidly linked with it supporting ring 4 is going down. Toroidal inner surface of supporting ring 4 is engaged with balls 9 moving them in radial grooves of disk 8 in direction of its axial hole. Balls 9 press on toroidal outer surface of pressing member made in the form of horizontally located additional disk 5 with rod 6 and raise it over weight-measuring detector. EFFECT: increased reliability of spring balance. 1 dwg
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