Mounting for a bimetal coil thermometer and having an integral feature assisting calibration

A support for a helical thermometer bimetal coil of the type having internal and external ends, an interior attachment feature forming a part of the internal end and a pointer forming a part of the external end, said support comprising

• a) a base having an opening having an axis, said base including in the opening at least two centrally projecting base tabs disposed around the periphery of the opening and opposed to each other, each base tab having at least one substantially flat load surface disposed normal to the axis with load surfaces of adjacent base tabs facing in opposite directions, said base tabs having ends collectively defining around the axis a clearance space having a generally circular periphery;
• and
• b) a generally cylindrical hub having an axis aligned with the base opening axis and a cross section shape allowing rotation of the hub within the clearance space when so aligned, said hub including a coil support feature for mating with the interior attachment feature of the bimetal coil and for supporting the bimetal coil, said hub further including at least two radially projecting hub tabs, each hub tab including at least one load surface and axially positioned on the hub to interferingly mate a load surface thereof with a corresponding load surface of a base tab over a range of angular positions, wherein at least one of each hub tab and the base tab with which it mates is elastically deflected by the other of the mated hub tab and base tab, whereby the hub is frictionally supported with respect to the base at any angular position within a range of angular positions.