Dual element thermostatic control having calibration means

Claim 1

A THERMOSTATIC CONTROL DEVICE COMPRISING, A FRAME, A CONTROL ELEMENT MOUNTED ON THE FRAME HAVING A MOVABLE OPERATING PLUNGER, AN ACTUATING LEVER MOUNTED ON THE FRAME PIVOTALLY MOVABLE FOR ACTUATING THE OPERATING PLUNGER, A BIMETAL ELEMENT HAVING ONE END SECURED TO THE END OF THE FRAME REMOTE FROM THE ACTUATING LEVER AND EXTENDING IN THE DIRECTION OF AND TERMINATING AT A POINT SPACED FROM SAID ACTUATING LEVER, A TRANSMITTING LEVER PIVOTALLY MOUNTED ON THE FRAME INTERMEDIATE ITS ENDS BETWEEN SAID ACTUATING LEVER AND SAID BIMETAL ELEMENT, SAID TRANSMITTING LEVER HAVING ONE END DISPOSED IN THE PATH OF THE ACTUATING LEVER FOR ACTUATING THE OPERATING PLUNGER AND THE OTHER END PIVOTALLY CONNECTED TO THE FREE END OF SAID BIMETAL ELEMENT, SAID BIMETAL ELEMENT DEFLECTING IN RESPONSE TO TEMPERATURE CHANGES TO CAUSE ROTATION OF THE TRANSMITTING LEVER ABOUT ITS PIVOTAL MOUNTING TO ACTUATE THE OPERATING PLUNGER.