‘Dust Bowl’ Truck Has Air-Conditioned Cab (Dec, 1936)
‘Dust Bowl’ Truck Has Air-Conditioned Cab
Not only the drivers but the Diesel engine itself breathes conditioned air in a truck built for travel through the “dust bowl” of Kansas and Colorado. Since comfort for the drivers during stifling dust storms was essential, a mechanical air conditioner was installed in the cab. A gasoline engine drives a two-cylinder compressor, and a tank holds fuel for a thousand-mile trip. The cooling element, sulphur gas, flows through coils in the cab, keeping its temperature at seventy- four degrees. The copilot’s seat is convertible into a comfortable seven-foot bunk extending under the hood. The seat is made in three sections which slide on rails. To insure efficient operation of the Diesel motor, even through dust storms, three specially designed wet-air cleaners attached to the intake manifold filter the air thoroughly. On the dashboard, in clear view of the driver, are an air-brake dial and a tachometer which shows the pilot what his engine is doing regardless of miles per hour. This aids in obtaining the most efficient engine operation. There is a separate red hand on the tachometer which points to the highest engine speed attained during a trip and can be reset only by a special key belonging to the truck owner.