Thermostat apparatus with means to prevent the adverse effect of a cold wall

Claim 1

IN A THERMOSTAT, A CASE ADAPTED TO BE MOUNTED IN A WALL OF A SPACED, SAID CASE BEING INSULATED TO REDUCE ITS HEAT LOSS TO SAID WALL, A SEPARATING MEMBER HAVING A HOLE THERETHROUGH AND A CONCAVE FRONT SURFACE, MEANS MOUNTING SAID SEPARATING MEMBER IN SAID CASE TO PROVIDE A CHAMBER IN THE REAR PORTION OF SAID CASE TO WHICH ACCESS IS PROVIDED THROUGH SAID HOLE, A SUPPORTING MEMBER HAVING A FIRST PORTION CONNECTED TO SAID SEPARATING MEMBER AND A SECOND ENCLOSURE PORTION HELD IN SPACE RELATIONSHIP IN SAID CONCAVE OPENING OF SAID SEPARATING MEMBER, A SET POINT ADJUSTING MEMBER BEING PIVOTALLY SUPPORTED ON SAID FIRST PORTION AND SURROUNDING SAID SUPPORTING MEMBER, A SWITCH MOUNTED IN SAID CHAMBER, AN ADJUSTABLE MEMBER MOUNTED IN SAID ENCLOSURE MEMBER, A TEMPERATURE RESPONSIVE ELEMENT, MEANS CONNECTING SAID TEMPERATURE RESPONSIVE ELEMENT BETWEEN SAID ADJUSTABLE MEMBER AND SAID SWITCH, SAID LAST MENTIONED MEANS EXTENDING THROUGH AN OPENING OF SAID SUPPORTING MEMBER, A FIRST MEMBER HAVING A FIRST AND SECOND ENDS, MEANS CONNECTING ONE END OF SAID FIRST MEMBER TO SAID ENCLOSURE MEMBER, MEANS CONNECTING A SECOND END OF SAID FIRST MEMBER TO SAID SET POINT ADJUSTMENT MEMBER SO THAT UPON A ROTATION OF SET POINT ADJUSTING MEMBER SAID FIRST MEMBER IS PIVOTED WITH RESPECT TO SAID BASE, MEANS CONNECTING SAID FIRST MEMBER TO SAID ADJUSTABLE MEMBER, SAID LAST MENTIONED MEANS HAVING A PIN PROTRUDING FROM SAID FIRST MEMBER NEAR SAID FIRST END SO THAT UPON THE ANGULAR MOVEMENT OF SAID SET POINT ADJUSTING MEMBER SAID ADJUSTING MEMBER IS MOVED ONLY A PORTION OF THE ANGLE OF MOVEMENT OF SAID SET POINT ADJUSTING MEMBER, AND INDICATING SCALE ASSOCIATED WITH SAID SET POINT ADJUSTING MEMBER WHEREBY SAID INDICATING SCALE HAS A GREATER ANGULAR SPREAD FOR A GIVEN TEMPERATURE RANGE THAN THE ANGULAR MOVEMENT REQUIRED FOR SAID ADJUSTING MEMBERR TO CHANGE THE CONTROL POINT OF SAID TEMPERATURE RESPONSIVE MEANS THROUGH SAID RANGE.