G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
G01G3/02—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring
G01G3/04—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a helical spring using a plurality of springs
G—PHYSICS
G01—MEASURING; TESTING
G01G—WEIGHING
G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles