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A three-point hitch attaches the implement to the tractor so that the orientation of the implement is fixed with respect to the tractor and the arm position of the hitch. The tractor carries some or all of the weight of the implement. The other main mechanism for attaching a load is through a drawbar, a single point, pivoting attachment where ...
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 Ferguson photo is really a bad picture to illustrate a three point hitch. First of all, the top link of the hitch is missing. Secondly the bottom links are holding a 'drawbar', and by its different color, it's the drawbar that's emphasized, not the three point hitch. I've swapped photo positions because the Ferguson photo is so bad.
A tow hitch (or tow bar or trailer hitch in North America [1]) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear. It can take the form of a tow ball to allow swiveling and articulation of a trailer , or a tow pin, or a tow hook with a trailer loop, often used for large or agricultural vehicles ...
The Big Bud 747 or 16V-747 Big Bud is a large, custom-made farm tractor built in Havre, Montana, in 1977. It has 1100 horsepower. It is billed by the owners and exhibitors as the "World's Largest Farm Tractor". [1] It is about twice the size of many of the largest production tractors in the world, depending on parameter. [2]
Another early example of the fifth wheel in a motorised vehicle was the Messrs T. Toward & Co Steam Motor Tractor that was exhibited at the Northumberland Agricultural Society Show in Newcastle upon Tyne in July 1898, [2] and described in some detail in the September issue of the Automotor Journal. [3] The tractor is shown towing a trailer (or ...