#1675: Twainsaw

Today’s invention is a chainsaw in which the chain is looped so as to allow two stretches both to move in parallel towards the body of the machine.

This creates a V-shaped gap into which eg tree limbs can be fitted and cut more easily -because, being wedged in place, the pressure required to be sustained by the user is much less.

This allows a variety of sizes to be cut, with less effort, and also limits the size of cut, so that people aren’t tempted to take on redwoods (thus a) damaging valuable mature trees and b) burning out their motors).