Importance

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Abstract

A weighing scales structure comprising an elongate unitary tension rod having an elongate reaction end portion with inner and outer ends and a force-transmitting coupling part at its outer end, an elongate working end portion with inner and outer ends and a force-transmitting coupling part at its outer end, a central elongate elastic portion extending between and integrally joined with the inner end portions of the reaction and working portions; and, a plurality of strain gauges fixed to the elastic portion. The scales next include an elongate housing freely engaged about the central elastic portion and the inner end of the working end portion and releasably clampingly engaged with and about the inner end portion of the reaction portion. A circuit board and a battery power supply are mounted within the housing. The circuit board carries a bridge circuit in which the strain gauges are connected and a light emitting digital readout device which is visible through a window in the housing.

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First Claim