Rate of change controller

Claim 1

IN A TEMPERATUR CONTROL FOR RESETTING A THERMOSAT IN PREDETERMINED TEMPERATURE INCREMENTS PER UNIT OF TIME IN EQUAL SUB-INCREMENTS, SAID CONTROL COMPRISING (A) A TIMER MOTOR, (B) A CAM COUPLED TO BE CONTINUOURSLY ROTATED BY SAID MOTOR AT A RATE CORRESPONDING TO SAID SUB-INCREMENTS, (C) A CMAP PAWL MOUNTED FOR RECIPROCATIN WITH RESPECT TO THE CAM AND HAVING A FOLLOWER RESILIENTLY URGED INTO ENGAGEMENT WITH SAID CAM, SAID CAM PAWL HAVING AN OUTER END PROVIDED WITH RETCHET TEETH ON THE EDGE, AND (D) A RETCHAT WHEEL ROTABLY MOUNTED IN MESH WITH SAID CAM PAWLS AND ACTUATED BY SAID CAM PAWLS AS THE CAM PAWL MOVES OUTWARDLY OF THE CMA AND EFFECTIVELY RELEASED FROM THE CAM PAWL AS THE CAM PAWL MOVES TOWARD THECAM, ADJUSTABLE STO MEANS DISPOSED IN THE PATH OF THE CAM PAWL TO VARIABLE RESTRICT THE TOWARD THE CAM TO SAID PAWL AS THE PAWL MOVES MOVEMENT OF THE PAWL AND HOLD THE PAWL IN SPACED RLATION TO THE CAM FOR PREDETERMINED PARTIAL PORTIONS OF EACH CYCLE AND THEREBY VARYING THE MOVE MENT OF THE PAWL AND THE TEMPERATUR INCREMENT PER UNIT OF TIME.