Modular electrical contact assembly

Claim 1

IN A CONTACT MODULE THE COMBINATION COMPRISNG: A HOUSING INCLUDING A PAIR OF SPACED SIDE WALLS AND A PAIR OF ENDS JOINING SAID SIDE WALLS; A CONDUCTIVE TERMINAL MOUNTED ON EACH OF SAID ENGS WITH A STATIONARY CONTACT WITHIN SAID HOUSING; A SLIDABLE CONTACT CARRIER MOUNTING WITHIN SAID HOUSING BETWEEN SAID SIDE WALLS FOR GUIDED, RECIPROCATING MOVEMENT AND HAVING A CONTACT CAGE WITH AN ACTUATOR STEM EXTENDING FROM BOTH THE TOP AND THE BOTTOM; A MOVABLE CONTACT SPANNER MOUNTED IN AND OVERHANGING FROM THE CAGE OF SAID CONTACT CARRIER, WHICH SPANNER IS MOVABLE TOWARD AND FROM SAID STATIONARY CONTACTS TO BRIDGE BETWEEN THEM UPON ENGAGEMENT THEREWITH AND TO MOVE BETWEEN CONTACT CLOSED AND CONTACT OPEN POSITIONS UPON RECIPROCATION OF SAID CONTACT CARRIER; AND A PAIR OF CONDUCTIVE MOUNTING SURFACES FORMING UPPER AND LOWER SIDES OF EACH TERMINAL WHICH ARE DISPOSED OUTWARD OF SAID END PORTION WITH THE SURFACES OF A PAIR OF FACING IN OPPOSITE DIRECTIONS AND BEING SPACED APART A DISTANCE LESS THAN THE HEIGHT OF SAID SIDE WALLS, SURFACES OF A PAIR ALSO HAVING A COMMON OPENING EXTENDING THERETHROUGH, THE MOUNTING SURFACES OF A PAIR ALSO BEING PARALLEL TO AND SUBSTANTIALLY EQUIDISTANT FROM A REFERENCE AXIS PERPENDICULAR TO THE DIRECTION OF SAID RECIPROCATING MOVEMENT AND MIDWAY BETWEEN THE OUTERMOST POSITIONS OF THE ENDS OF SAID ACTUATOR STEMS.