Description:
A pair of electromagnet spools and see-saw armature, on spring pivot, carrying two contactors. These dip into respective mercury cups, one to operate armature and the other for external breaker use. Each has a barrel on cylindrical reversing switch in respective circuits. All mounted on rectangular mahogany base. Adjustments provide for timing armature over small range.
Glass cup and spring pivot broken.
0337a base with electromagnetic coils
0337b glass mercury cup
0337c glass mercury cup
0337d rocking armature