Space temperature control

Claim 1

A SPACE TEMPERATURE CONTROLLER FOR USE IN OPTIONALLY CONTROLLING ELECTRICALLY OPERATED SPACE HEATING MEANS AND ELECTRICALLY OPERATED SPACE COOLING MEANS, SAID CONTROLLER INCLUDING: A THERMOSTAT COMPRISING A FIRST SINGLE POLE, SINGLE THROW SWITCH, A BASE FOR SAID SWITCH AND A SWITCH OPERATING MEANS ON SAID BASE RESPONSIVE TO THE TEMPERATURE OF THE CONDITIONED SPACE TO CAUSE SAID FIRST SWITCH TO OPEN UPON A RISE AND TO CLOSE UPON A DROP ABOVE AND BELOW A PREDETERMINED SPACE TEMPERATURE, A SUB-BASE DETACHABLY CONNECTED TO SAID BASE, SAID SUB-BASE INCLUDING MOUNTED THEREON A SECOND SINGLE POLE, SINGLE THROW SWITCH, A THIRD SINGLE THROW, DOUBLE POLE SWITCH, AND A FOURTH TEMPERATURE RESPONSIVE, NORMALLY CLOSED, SINGLE POLE, SINGLE THROW SWITCH; SAID FOURTH SWITCH BEING REQUIRED TO BE HEATED TO A TEMPERATURE CONSIDERABLY ABOVE THE CONTROLLED SPACE TEMPERATURE TO EFFECT ITS OPENING, AN ELECTRICAL RESISTANCE HEATER MOUNTED ON SAID SUB-BASED OPERATIVE WHEN ENERIGIZED TO HEAT SAID FOURTH SWITCH AND EFFECT ITS OPENING, A SINGLE SELECTOR HANDLE FOR OPERATING BOTH SAID SECOND AND THIRD SWITCHES HAVING A NETURAL POSITION IN WHICH BOTH SAID SWITCHES ARE OPEN, A FIRST THROW POSITION IN WHICH ONLY SAID SECOND SINGLE POLE SWITCH IS CLOSED AND A SECOND THROW POSITION IN WHICH ONLY BOTH POLES OF SAID THIRD SWITCH ARE CLOSED; AND SAID SUB-BASE FURTHER INCLUDING THEREON A FIRST CIRCUIT MEANS OPERATIVE WHEN SAID SELECTOR HANDLE IS IN SAID FIRST POSITION AND WHEN SAID FIRST SWITCH IS CLOSED TO COMPLETE AN ENERGIZING CIRCUIT FOR ELECTRICALLY OPERATED SPACE HEATING MEANS, AND A SECOND CIRCUIT MEANS OPERATIVE WHEN SAID SELECTOR HANDLE IS IN ITS SECOND THROW POSITION AND WHEN SAID FOURTH SWITCH IS CLOSED TO COMPLETE AN ENERGIZING CIRCUIT FOR ELECTRICALLY OPERATED SPACE COOLING MEANS AND TO COMPLETE AN ENERGIZING CIRCUIT FOR SAID ELECTRICAL RESISTANCE HEATER THROUGH SAID FIRST SWITCH WHEN IT IS CLOSED THEREBY TO EFFECT THE OPENING OF SAID FOURTH SWITH AND THEREBY TO BREAK THE ENERGIZING CIRCUIT FOR THE SPACE COOLING MEANS.