Fail safe snap acting disconnect switch

Claim 1

AN ELECTRIC SWITCH COMPRISING A BASE PLATE, STATIONARY AND MOVABLE CONTACT MEANS ASSOCIATED WITH EACH OTHER AND MOUNTED ON ONE SIDE OF THE BASEPLATE, A SNAP ACTUATING MECHANISM MOUNTED ON THE OPPOSITE SIDE OF THE BASE PLATE AND INCLUDING A CRANK ACTUATOR WITH AN ARCUATE SLOT THEREIN ROTATIVELY PIVOTED TO THE BASE PLATE AND SNAP ACTING MEANS PIVOTED AT ITS INNER END TO THE ACTUATOR WITHIN SAID ARCUATE SLOT AND ADAPTED TO ROTATE THE ACTUATOR WITH A SNAP ACTION, A TOGGLE ARM PIVOTED AT THE INNER END TO THE BASE AND SECURED AT THE OUTER END TO THE OUTER END OF THE SNAP ACTING MEANS, AN OPERATING MEMBER SECURED TO THE TOIGGLE ARM TO ROTATE THE SAME AND EFFECT ACTUATION OF THE SNAP ACTING MEANS WHEN A CENTER AXIS LINE EXTENDS THROUGH THE PIVOTS OF THE CRANK ACTUATOR AND THE SNAP ACTING MEANS, AND A CRANK SECURED TO THE BASE PLATE AND EXTENDING THERETHROUGH IN ENGAGEMENT AT ONE END WITH THE CRANK ACTUATOR OF THE SNAP ACTUATING MECHANISM AND AT THE OTHER END WITH THE MOVABLE CONTACT MEANS TO OPEN AND CLOSE THE CONTACT MEANS BY A SNAP ACTION WHEN THE TOGGLE ARM AND SNAP ACTUATING MECHANISM ARE ACTUATED BY THE OPERATING MEMBER.