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  2. Agricultural machinery - Wikipedia

    en.wikipedia.org/wiki/Agricultural_machinery

    Agricultural steam engines took over the heavy pulling work of oxen, and were also equipped with a pulley that could power stationary machines via the use of a long belt. The steam-powered machines were low-powered by today's standards but because of their size and their low gear ratios, they could provide a large drawbar pull. The slow speed ...

  3. Three-point hitch - Wikipedia

    en.wikipedia.org/wiki/Three-point_hitch

    For example, when the Ford 9N introduced Harry Ferguson's three-point hitch design to American production-model tractors in 1939, it was a light and affordable tractor competing principally with row-crop tractors such as Farmalls that did not yet have three-point hitches.

  4. Drawbar (haulage) - Wikipedia

    en.wikipedia.org/wiki/Drawbar_(haulage)

    A large ballast tractor pulling a load using a drawbar General duty tow hitch from VBG on a truck and a drawbar on a trailer, showing a connected drawbar eye Rockinger drawbar coupling, in which the drawbar eye gets locked. A drawbar is a solid coupling between a hauling vehicle and its hauled load. Drawbars are in common use with rail ...

  5. Ballast tractor - Wikipedia

    en.wikipedia.org/wiki/Ballast_tractor

    Hayes WHDX 70-170 6×6 tractor. A ballast tractor is a specially weighted tractor unit of a heavy hauler combination. It is designed to utilize a drawbar to pull or push heavy or exceptionally large trailer loads which are loaded in a hydraulic modular trailer.

  6. Category:Tractor pulling - Wikipedia

    en.wikipedia.org/wiki/Category:Tractor_pulling

    Pages in category "Tractor pulling" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. ...

  7. Heavy Equipment Transport System - Wikipedia

    en.wikipedia.org/wiki/Heavy_Equipment_Transport...

    A M911 tractor and a M747 trailer with a M60 Patton tank A M911 tractor at Schweizerisches Militärmuseum Full A Oshkosh M911 tractor hauling a load. Prior to 1993, the U.S. Army employed the Commercial Heavy Equipment Transporter (C-HET), which consisted of either the M746 or the M911 truck tractor and the M747 semitrailer.