in the operating mechanism springs both should be defeated to render the breaker incapable of being charged and subsequently closed by depression of the close pushbutton however this is not a desirable approach for the subject breaker construction since it is essential that trip lever 82 be completely divorced from secondary latch 74 so that the latter can be independently and quickly reset to hold the charge imparted to the mechanism springs by the charging springs immediately after the other secondary latch has been removed by the trip lever to trip the breaker open otherwise prolonged depression of the open pushbutton would cause the breaker operating mechanism to 34 crash 34 when the mechanism springs are recharged consequently to accommodate such interlocking in the subject circuit breaker construction trip lever 82 is held in its clockwise most position seen in fig1 by an external interlock actuating member not shown acting directly on the trip lever or on open pushbutton 121 to sustain its depression the trip initiating secondary latch is thus held in its unlatching position more significantly however pin 83 carried at the lower end of trip lever leg 82a and projecting through frame sideplate cutout 72 is swung into engagement with an arcuate edge segment 114d of bypass lever 114 this causes the bypass lever to be rotated in the clockwise direction to lift and hold tab 114b in elevated disengaged relation with cutout shoulder 110c of close lever 110 it is seen that under these circumstances the close lever is decoupled from primary hook 104.