[Henry/Kokomo]

I worked for a company years ago that had several Schramm air compressors in the form of a 6 cyl., gasoline powered tractor mounted on rubber tires. The engine ran on 4 cylinders and pumped air on 2. On one side of the tractor, there was a large air reservoir. On the other side was a similar sized tool box. The tractors were use by bridge crews to move their heavy air tools to remote sites and provide an air supply to operate those tools. At first glance, they looked like an ordinary tractor with a big tool box attached. Same premise as the crawler - but the crawler is much neater.