ClipArt ETC
This lawn mower called the cylinder in many countries, features a fixed horizontal cutting blade at the desired height of cut. Over this is a fast spinning reel of blades which force the grass past the cutting bar. Each blade in the reel forms a helix around the reel axis, and the set of spinning blades describes a cylinder.

Early Design Lawn Mower

This lawn mower called the cylinder in many countries, features a fixed horizontal cutting blade at…