It has existed since 1805, when the lawn mower was manpower and there was no power support. Weeder 1805 British Praknet Invented the first machine that harvests grains and can cut weeds. The machine is driven by humans, and the rotary knife is driven by gears to cut grass. This is the embryonic form of the lawn mower.　In 1830, British textile engineer Bill Pudding obtained a patent for a roller lawn mower.

In 1832, Ransoms Agricultural Machinery Company began mass production of drum mowers.

In 1902, the Englishman London Ens made a drum lawn mower powered by an internal combustion engine. The principle is still in use today.

We usually see this kind of lawn mower on American country TV. It can easily trim the lawn