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2. Lowboy (trailer) - Wikipedia

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

   A lowboy (low-loader in British English, low-bed in western Canada and South Africa or float in Australia and eastern Canada) is a semi-trailer with two drops in deck height: one right after the gooseneck and one right before the wheels. This allows the deck to be extremely low compared with other trailers. It offers the ability to carry legal ...

3. Ship's wheel - Wikipedia

   en.wikipedia.org/wiki/Ship's_wheel

   Diagram of the steering gear of an 18th- to 19th-century sailing ship [3]: 151 Helm of TS Golden Bear. A ship's wheel is composed of eight cylindrical wooden spokes (though sometimes as few as six or as many as ten or twelve depending on the wheel's size and how much force is needed to turn it.) shaped like balusters and all joined at a central wooden hub or nave (sometimes covered with a ...

4. Shiploader - Wikipedia

   en.wikipedia.org/wiki/Shiploader

   Shiploader. A shiploader is a large machine used for continuously loading bulk solid materials such as iron ore, coal, fertilizers, grains and/or material in bags onto ships or barges. These machines are located in ports and jetties to facilitate bulk material exportation. Generally shiploaders are engineered to suit specific project requirements.

5. Articulated vehicle - Wikipedia

   en.wikipedia.org/wiki/Articulated_vehicle

   In the UK, tractor unit and trailer combinations are referred to as articulated lorries, or "artics". [1]A semi-trailer truck, also known as a semitruck, [1] (or semi, [2] eighteen-wheeler, [3] big rig, [4] tractor-trailer [5] or, by synecdoche, a semitrailer) [6] [a] is the combination of a tractor unit and one or more semi-trailers to carry freight.

6. 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 ...

7. Loader (equipment) - Wikipedia

   en.wikipedia.org/wiki/Loader_(equipment)

   John Deere Front end loaders CAD model tracing of a tractor mounted loader mechanism CAD model tracing of a skid loader mechanism. A loader is a heavy equipment machine used in construction to move or load materials such as soil, rock, sand, demolition debris, etc. into or onto another type of machinery (such as a dump truck, conveyor belt, feed-hopper, or railroad car).