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2. Three-point hitch - Wikipedia

   en.wikipedia.org/wiki/Three-point_hitch

   The three-point hitch (British English: three-point linkage) is a widely used type of hitch for attaching ploughs and other implements to an agricultural or industrial tractor. [1][2] The three points resemble either a triangle, or the letter A. In engineering terms, three-point attachment is the simplest and the only statically determinate way ...

3. Tow hitch - Wikipedia

   en.wikipedia.org/wiki/Tow_hitch

   A tow ball mounted on the rear of a vehicle. A screw-on tow hook mounted at the front of a vehicle. 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 ...

4. Power take-off - Wikipedia

   en.wikipedia.org/wiki/Power_take-off

   A PTO (in the box at the bottom) in the center of the three-point hitch of a tractor. A power take-off or power takeoff (PTO) is one of several methods for taking power from a power source, such as a running engine, and transmitting it to an application such as an attached implement or separate machine. Most commonly, it is a splined drive ...

5. Hitch (knot) - Wikipedia

   en.wikipedia.org/wiki/Hitch_(knot)

   A type of knot used to connect a rope to an object. Highpoint hitch: A type of knot used to attach a rope to an object. Highwayman's hitch: A quick-release draw loop knot used for temporarily securing a rope that will need to be released easily and cleanly. Hitching tie: A simple knot used to tie off stuff sacks that allows quick access as it ...

6. Quick coupler - Wikipedia

   en.wikipedia.org/wiki/Quick_coupler

   Description. Quick couplers are devices installed at the outer end of the work equipment of various types of construction and earth-moving machines. They facilitate the rapid exchange of working tools or buckets. Quick couplers are most common on hydraulic excavators and compact excavators and on the backhoe equipment of backhoe loaders, but ...

7. Fifth-wheel coupling - Wikipedia

   en.wikipedia.org/wiki/Fifth-wheel_coupling

   The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. The coupling consists of a kingpin, a 2-or- -inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel ...