AUTOMATIC WEIGHING SCALE Russian patent published in 1998 - IPC

FIELD: measurement technology, chemical, metallurgical and food processing industries and trade. SUBSTANCE: proposed automatic weighing scale uses possibility of weighing in two stages. At first stage main mass of material is weighed and at second stage its insufficient part is metered out. Weighing mechanisms are identical for both stages and present bell-cranks which one arms sense weight of metered out material in sequence and other arms carrying counterweights counterbalance them. Feed of material into weighing chamber is regulated by means of limit switches interacting with rules coupled electrically and pneumatically with rotation drive of cock. EFFECT: enhanced operational stability and reliability. 5 dwg