Patent ID: 8581121

Claim:
A force-transmitting device for use in a gravimetric measuring instrument, the device comprising: a stationary part; a measurement transducer arranged on the stationary part; a load-receiving part, linked for force transmission to the measurement transducer, directly or indirectly through an intermediate part; a calibration weight; a calibration lever, with a fulcrum that is based on the stationary arm, the fulcrum dividing the calibration lever into first and second calibration lever arms; and a unidirectional coupling element, comprising: a first coupling element part, connected through a first flexure pivot to a fixed place on one of: the load-receiving part and the intermediate part; and a second coupling element part, connected through a second flexure pivot to a fixed place on the second calibration lever arm, the respective coupling elements aligned with each other so that a force from the calibration weight, which is solidly connected to the first calibration arm, is transmitted from the second flexure pivot to the first flexure pivot, the force transmitted being exclusively tensile or exclusively compressive.