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  2. Tractor - Wikipedia

    en.wikipedia.org/wiki/Tractor

    The Ford N-series tractor helped revolutionize modern mechanized agriculture with its Ferguson three point hitch. A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction.

  3. John Deere Model B - Wikipedia

    en.wikipedia.org/wiki/John_Deere_Model_B

    The John Deere Model B tractor was a two-plow row-crop tractor produced by John Deere from 1935 to 1952, with direct successors produced until 1960. The B was a scaled-down, less expensive version of the John Deere Model A. It was followed by the updated 50, 520 and 530 models.

  4. Excavator - Wikipedia

    en.wikipedia.org/wiki/Excavator

    The two main pumps supply oil at high pressure (up to 5000 psi, 345 bar) for the arms, swing motor, track motors and accessories while the third is a lower pressure (≈700 psi, 48 bar) pump for pilot control of the spool valves; this third circuit allows for reduced physical effort when operating the controls. Generally, the 3 pumps used in ...

  5. John Deere DB120 - Wikipedia

    en.wikipedia.org/wiki/John_Deere_DB120

    John Deere claims that the planter is 30% more productive than their 36 row DB90 planter. [1] To transport such an incredibly wide implement, the DB120 folds into five sections . The planter weighs in at over 20 tons empty and almost 24 tons when loaded with seed. [1] The DB120 had a limited release in 2009 with orders being taken for the 2010 ...

  6. Threshing machine - Wikipedia

    en.wikipedia.org/wiki/Threshing_machine

    Irish songwriter John Duggan [6] immortalised the threshing machine in the song "The Old Thrashing Mill". [7] The song has been recorded by Foster and Allen and Brendan Shine . On the Alan Lomax collection Songs of Seduction (Rounder Select, 2000), there is a bawdy Irish folk song called "The Thrashing Machine" sung by tinker Annie O'Neil, as ...

  7. Zero-turn mower - Wikipedia

    en.wikipedia.org/wiki/Zero-turn_mower

    In 1963, John Regier, an employee at Hesston Corporation, developed a zero-turn lawnmower based on the company's agricultural swather, which used a counter-rotating belt-and-pulley mechanism to cut hay, alfalfa and other farming materials and lay them out in windrows. Regier's lawnmower used two independent drive levers, instead of the steering ...