Fixed light load adjustment assembly for induction meters

Claim 1

An induction meter including a voltage and current magnetic sections each producing magnetic flux and a rotatable disk driven at a rate responsive to said magnetic flux directed from said magnetic sections into said disk, wherein said voltage magnetic section comprises: a substantially E-shaped laminated magnetic core having a center leg terminating at a main pole face and two adjacent legs terminating at coplanar auxiliary pole faces on opposite sides of said main pole face, said first and last laminae defining a first and a second side, respectively, of said core; a voltage coil wound about said center leg; a fixed light load adjuster bracket located in magnetic proximity to said first side, said bracket having a fixed tab extending over a portion of one of said auxiliary pole faces and means for supporting a screw; a non-magnetic spacer separate from said light load adjuster bracket located between said first side and said light load adjuster bracket, said spacer, said light load adjuster bracket and said laminae of said core being fastened together so as to provide a rigid assembly; a screw carried by said bracket screw support means; and a movable tab located in proximity to said bracket and having a threaded portion cooperating with said screw, said movable tab being oriented so as to extend over adjustable portions of said other auxiliary pole face and said main pole face thereby providing an adjustable magnetic flux shunt path, said bracket and said tabs acting as an additional magnetic flux shunt path.