Portable continuous drier

Claim 1

A PORTABLE CONTINUOUS GRAIN DRIER COMPRISING A HOUSING, A LINER EXTENDING BETWEEN THE END WALLS OF SAID HOUSING AND HAVING PERFORATED SIDE WALLS SPACED FROM THE HOUSING SIDEWALLS, LOADING MEANS FOR METERING GRAIN INTO THE SPACE BETWEEN THE ADJACENT SIDE WALLS OF SAID HOUSING AND LINER, INLOADING MEANS AT THE BASE OF SAID HOUSING FOR REMOVING GRAIN THEREFROM, SAID UNLOADING MEANS COMPRISING AN UNLOADING AUGER ASSEMBLY, AN ELECTRIC MOTOR FOR DRIVING SAID AUGER AND A SOURCE OF ELECTRICAL POWER THEREFOR, FAN MEANS FOR PASSING AIR THROUGH SAID SPACE BETWEEN THE SIDE WALLS OF SAID LINER AND SAID HOUSING, HEATING MEANS FOR RAISING THE TEMPERATURE OF THE AIR SO PASSED. AND CONTROL MEANS FOR SHUTTING DOWN SAID AUGER DRIVING MOTOR UPON EITHER A FAILURE OF SAID HEATING MEANS OR UPON A PREDETERMINED TEMPERATURE RISE OF SAID SPACE BETWEEN THE LINER AND HOUSING, SAID CONTROL MEANS INCLUDING A FIRST SWITCH CLOSED IN RESPONSE TO THE PRODUCTION OF HEAT BY SAID HEATING MEANS AND A SECOND SWITCH NORMALLY CLOSED BUT OPENED UPON A PREDETERMINED TEMPERATURE RISE OF SAID SPACE BETWEEN SAID LINER AND HOUSING, SAID FIRST AND SECOND SWITCHES BEING CONNECTED IN SERIES BETWEEN SAID POWER SOURCE AND SAID AUGER DRIVING MOTOR.