PTO (Power Take Off) Driven Drag Saw

This drag saw is amazingly complex for its function. It is driven from a tractor PTO (Power Take Off), in its heydey it could well have been driven by a steam traction engine. In this case it is driven by a small John Deere. There are "rounds" from previous cuts scattered around as the saw chews through the log for another time.

In this shot, you can see the size of the log which the saw is dealing with - about 2' (66cm) in diameter.

Here you can clearly see the belt guide and the drive mechanism. The driven pulley is a double pulley and drives the flywheel via another flat belt.

The small John Deere driving the saw via a 4" (12cm) leather belt. The tractor is driving a large fly wheel via a small wooden pulley. This fly wheel stores the energy transmitted by the belt and lessens the impact on the belt drive. If the small pulley drove the saw directly it would run the saw at PTO speed and would also jerk the belt on each cut damaging both the belt and the driving engine.

Last modified Sunday, 20-Jul-2003 15:28:00 BST

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