Recoil saw

Using a hand saw requires repeated push and pull strokes. Normally this involves either: limiting the force of each stroke, or making a separate effort to stop each stroke.

The recoil devices are simply an impact bar, attached to 1 or more springs, attached to the hand saw.

When using the recoil saw, the recoil is compressed at the end of each stroke. Energy from each stroke is stored and then used in the next stroke. This speeds the transition from one stroke to the next. This also eliminates the effort of stopping each stroke.

A saw operator can thus perform a sawing job in less time, using less effort, and exhaling fewer greenhouse causing gases into the atmosphere. :D

The recoil can be a part of many types of hand saws and files, for use in gardening, woodworking, and metalworking.