Control device for temporarily altering the temperature setting of a thermostat

Claim 1

IN A CONTROL DEVICE FOR A THERMOSTAT HAVING A HIGH TEMPERATURE POSITION AND A NORMAL TEMPERATURE POSITION: AN ADJUSTABLE MEMBER FOR ALTERING AT WILL THE SETTING OF A THERMOSTAT FROM A NORMAL TEMPERATURE TO A HIGHER TEMPERATURE; A PIVOTED ARM HAVING ONE POSITION IN WHICH SAID ARM IS CAPABLE OF ENGAGING THE ADJUSTABLE MEMBER TO RETURN IT TO NORMAL SETTING CONDITION, AND HAVING ANOTHER POSITION; A TIME DELAY DEVICE ENGAGEABLE WITH THE PIVOTED ARM FOR CAUSING THE ARM TO MOVE TOWARD THE SAID ONE POSITION WHEN IT IS IN A POSITION OUT OF OPERATIVE RELATION TO THE ADJUSTABLE MEMBER; SAID TIME DELAY DEVICE INCLUDING A DASHPOT AND A SPRING URGING THE ARM IN A DIRECTION TO MOVE THE ADJUSTABLE MEMBER; AND MEANS OPERATING ON THE ARM UPON REACHING A DEFINITE POSITION FOR MOVING THE ARM INTO SAID ONE POSITION AND TO DISCONNECT THE ARM FROM THE DASHPOT TO PERMIT THE SPRING TO MOVE THE ARM TO RETURN THE ADJUSTABLE MEMBER TO NORMAL POSITION.