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2. Jockey wheel - Wikipedia

   en.wikipedia.org/wiki/Jockey_wheel

   A jockey wheel for vehicular use is a retractable adjustable-height wheel used on the front of trailers (or caravans) with either a single axle (two running wheels) or more close-coupled axles at or near the centre of gravity whereby without additional support, the trailer would not remain level. The jockey wheel is close to the towing hitch ...

3. Fifth-wheel coupling - Wikipedia

   en.wikipedia.org/wiki/Fifth-wheel_coupling

   A wheel would be placed on the rear frame section of the truck, which at the time had only four wheels, making the additional wheel the "fifth wheel". The trailer needed to be raised so that the trailer's pin would be able to drop into the central hole of the fifth wheel. Fifth wheels were originally not a complete circle and were hand forged.

4. Roadrailer - Wikipedia

   en.wikipedia.org/wiki/Roadrailer

   RoadRailers were a trailer or semi-trailer that could be hauled on roads by a tractor unit and then by way of a fifth wheel coupling, operate in a unit train on railway lines. The RoadRailer system allowed trailers to be pulled by locomotives without the use of flatcars , instead attaching trailers directly to bogies .

5. Bogie - Wikipedia

   en.wikipedia.org/wiki/Bogie

   A bogie in the UK, or a railroad truck, wheel truck, or simply truck in North America, is a structure underneath a railway vehicle (wagon, coach or locomotive) to which axles (hence, wheels) are attached through bearings. In Indian English, bogie may also refer to an entire railway carriage. [4]

6. Terminal tractor - Wikipedia

   en.wikipedia.org/wiki/Terminal_tractor

   A terminal tractor Terminal tractor at the Port of Dover.. A terminal tractor, known in the United States as a shag truck, shunt truck, spotter truck, spotting tractor, yard truck, yard shifter, yard dog, yard goat, yard horse, yard mule, yard jockey, yard spotter, hostler, or mule, is a kind of semi-tractor intended to move semi-trailers within a cargo yard, warehouse facility, or intermodal ...

7. 'Wheel of Fortune' fans divided over Ryan Seacrest's decision ...

   www.aol.com/wheel-fortune-fans-divided-over...

   This week, one "Wheel of Fortune" player missed out on the first puzzle of the episode and a $1,000 prize after incorrectly pronouncing her puzzle guess. The two-word puzzle read: "A F _ I _ _ N ...

8. Caravan (trailer) - Wikipedia

   en.wikipedia.org/wiki/Caravan_(trailer)

   The special hitch used for fifth-wheels is a smaller version of the one used on 18-wheeler trucks and can be connected by simply driving (backing) the tow vehicle under the trailer. Fifth-wheel trailers are popular with full-time recreational vehicle enthusiasts, who often live in them for several months in one place, using their pickup truck ...

9. Semi-trailer truck - Wikipedia

   en.wikipedia.org/wiki/Semi-trailer_truck

   Conventional style cab tractor A cab-over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms – see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a ...