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Tractor with trailer.

View of a tractor with a trailer on the street in front of the construction site in Krusevac.
Tractors (lat. Trahere = towing) are drive-traction machines and serve when performing various work operations as a source of energy in the unit with attachments towing, carrying and giving them drive or providing energy for stationary work operations.
The first application of mechanical drive in agriculture is related to the beginning of the 19th century, when steam steam engines were used to start mechanical agricultural tools with a flexible belt. Around 1850, the first traction engine was constructed by developing a steam engine on wheels, and adapted for agricultural purposes. The first tractors were steam plowing machines, which worked in pairs. They were placed on both sides of the land that needed to be cultivated, and the plow moved between them with a wire cable. If the land allowed, a tractor with a steam engine pulled the plow directly.
In 1892, John Froelich of Iowa designed and constructed the first gasoline / diesel engine tractor. Having received a patent for it, he began to commercialize his invention, but in 1895 it turned out to be a failed business. Hart (Charles W. Hart) and Par (Charles H. Parr) produced 15 "tractors" in the same state in 1903 when the name was first used. In 1897 (Hornsby-Ackroyd Patent Safety Oil Traction engine) . The first commercially successful design, however, appeared in 1902. It was a "Ivel tractor" with three wheels. In 1908, the assembly of four-wheelers in the largest factory began in Bedford.
In 1917, Henry Ford introduced his Fordson, the first mass-produced tractor. It was produced in the USA, Ireland, England and Russia, and in 1923 Fordson held 77% of the American market. In the 1920s, gasoline-powered tractors became the standard.
The PTO shaft, an important part of the tractor that makes it the propulsion machine, first appeared in 1878 on some hand-made tractors, but the first PTO shaft on the factory-made model was the one built into the IHC (International Harvester Company) 1918 model 16-16. years.
In 1945, the company Cockshutt Farm Equipment Ltd from Ontario (Canada) began to produce a tractor "Cockshutt Model 30" which has a PTO shaft whose rotation is independent of the movement of the tractor, which is a great advantage when performing stationary operations.
The connection of the attachment to the three-point tractor instead of the two, the basis of the modern safe hydraulic tool lift, was invented by the British Harry Ferguson in 1928 and applied to his Black Tractor model in 1933. He thus directed the development of tools from towed to worn. The prototype of the lifter had two points of connection above and one below, so that Ferguson himself came to the conclusion that it should be turned so that the two points were down.

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Additional Photos by Pavle Randjelovic (pajaran) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 12783 W: 2901 N: 25950] (107409)
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