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The three-point hitch (British English: three-point linkage) is a widely used type of hitch for attaching ploughs and other implements to an agricultural or industrial tractor. [ 1 ] [ 2 ] The three points resemble either a triangle, or the letter A.
The first tractor of the series was the 9N, the first tractor to have both three-point hitch and a rear power take-off (PTO). The 9N was first demonstrated in Dearborn, Michigan on June 29, 1939. Its model name reflected a model-naming system using the last digit of the year of introduction and a letter for product type, with "N" for tractors ...
It marked a major advance in tractor design, distinguished by light weight, small size, manoeuvrability and versatility. The TE20 popularised Harry Ferguson's invention of the hydraulic three-point hitch system around the world, and the system quickly became an international standard for tractors of all makes and sizes that has remained to this ...
The three-point hitch soon became the favourite hitch attachment system among farmers in North America and around the world. This tractor model also included a rear Power Take Off (PTO) shaft that could be used to power three-point hitch mounted implements such as sickle-bar mowers. This PTO location set the standard for future tractor ...
The first three-point hitches were experimented with in 1917. After Harry Ferguson applied for a British patent for his three-point hitch in 1926, they became popular. A three-point attachment of the implement to the tractor is the simplest and the only statically determinate way of joining two bodies in engineering.
The term "backhoe" refers to the action of the bucket, not its location on the vehicle. [2] That is, a backhoe digs by drawing earth backwards, rather than lifting it with a forward motion like a person shovelling, a steam shovel, or a bulldozer. The buckets on some backhoes may be reconfigured facing forward, making them "hoes".