This is perhaps the most ridiculous saw I own. It’s powered by a small gasoline engine that sits on the ground. A flexible shaft transfers the power to a rubber drive wheel that spins a ring-shaped saw blade (like a circular saw, but with everything in the middle missing). These things didn’t last long after the invention of the chainsaw.
Location: Floor
Have you used this tool? Think my description is all wrong? Have a better example? Comment now with any thoughts you have about this tool!