Torsion balance

Claim 1

IN A BALANCE, A SUPPORTING FRAME INCLUDING A PAIR OF HORIZONTALLY SPACED DOWNWARDLY PROJECTING ABUTMENTS INTERCONNECTED BY A RIGID BRIDGE ELEMENT SPACING THE DISTANCE THEREBETWEEN, A PAIR OF BENDABLE HINGE-FORMING FILAMENTS HANGING FROM THE BRIDGE ELEMENT IN SPACED RELATION TO ONE ANOTHER ALIGNED BETWEEN THE ABUTMENTS, TILTABLE BEAM-FORMING MEANS SUSPENDED FROM THE FREE ENDS OF THE HINGE-FORMING FILAMENTS FOR ROCKABLE MOVEMENT ABOUT A SUBSTANTIALLY HORIZONTAL AXIS THAT INTERSECTS THE FRAME ABUTMENTS, LOAD-CARRYING MEANS SUSPENDED FROM A POINT IN THE BEAM MEANS DISPLACED TO ONE SIDE OF THE AXIS OF ROCKABLE MOVEMENT OF THE LATTER, COUNTERWEIGHT MEANS CARRIED BY THE BEAM MEANS POSITIONED AND ADAPTED TO COUNTERBALANCE THE LOAD-CARRYING MEANS, TORSION MEANS OPERATIVELY CONNECTED TO THE BEAM MEANS AND ADAPTED UPON ACTUATION TO RETURN SAME TO BALANCED POSITION FROM A CONDITION OF UNBALANCE CAUSED BY THE ADDITION OF A LOAD TO THE LOAD-CARRYING MEANS, SAID TORSION MEANS INCLUDING AN ACTUATOR JOURNALLED WITHIN ONE OF THE FRAME ABUTMENTS FOR ROTATION ABOUT AN AXIS COINCIDENT WITH THE AXIS OF ROCKABLE MOVEMENT OF THE BEAM MEANS, A TWISTABLE TORSION FILAMENT EXTENDING ALONG THE AXIS OF ROCKABLE MOVEMENT OF THE BEAM MEANS WITH ONE END CONNECTED TO THE ACTUATOR AND THE OPPOSITE END ATTACHED TO THE OTHER OF SAID FRAME ABUTMENTS, SAID TORSION FILAMENT BEING ATTACHED INTERMEDIATE ITS ENDS TO THE BEAM MEANS INDEPENDENT OF THE HINGE-FORMING FILAMENTS SUPPORTING SAME, AND LEAF SPRING MEANS ATTACHED TO THE TORSION FILAMENT ADAPTED