Tractor in confined areas. The most common variation of the classic farm tractor is the hoe, also called a hoe-loader. As the name implies, it has a loader assembly on the front and a backhoe on the back. Backhoes attach to a three-point hitch on farm or industrial tractors. Industrial tractors are often heavier in construction, particularly with regards to the use of steel grill for protection from rocks and the use of construction tires. When the backhoe is permanently attached, the machine usually has a seat that can swivel to the rear to face the hoe controls. Removable backhoe attachments
Backhoe of Ware Machine Works, Ware, MA, developed the first 4-bar linkage to achieve greater bucket digging and dumping rotation. Pilch filed for patent #2,678,741 in September 1950. The 4-bar linkages were also used on the Wain-Roy backhoes after 1954. The first hydraulic wheel loader was invented by Frank G. Hough in the mid-1940s under patents 2,782,946 and 2,726,778. The first Tractor Loader Backhoe was a Wain-Roy backhoe mounted to a Frank G. Hough model "HE" in 1952 in Holden, Massachusetts, US, for the Holden Water Department. The F.G. Hough Company was a subsidiary of the International Harvester Company. By early