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They may be made of wood, bone, metal, or similar materials. The number of tines on tools varies widely – a pitchfork may have just two, a garden fork may have four, and a rake or harrow many. Tines may be blunt, such as those on a fork used as an eating utensil; or sharp, as on a pitchfork ; or even barbed, as on a trident .
A trailer kitchen, rolling kitchen, or chow wagon is a field kitchen that is or can be pulled by a vehicle, pack animal, or person in the form of a cart, wagon, or trailer. They typically have two or four wheels and may be a single unit or two separate units connected to each other.
A garden fork, spading fork, or digging fork (in the past also an asparagus fork, [1] the same name as a very different utensil) is a gardening implement, with a handle and a square-shouldered head featuring several (usually four) short, sturdy tines.
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A jockey wheel is a wheel-based mechanical system used for steering or guidance, either: a guide wheel — usually operating as a pair — which is used to move, retain, locate and (usually) add tension to a chain , rope or cable which is then fed into the groove of another wheel, toothed wheel, cog or sprocket ;
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.
Some two-wheeled designs had pedals mounted on the front wheel, while three- and four-wheeled designs sometimes used treadles and levers to drive the rear wheels. The earliest usable and much-copied velocipede was created by the German Karl Drais and called a Laufmaschine (German for "running machine"), which he first rode on June 12, 1817.
Therefore, as the wheels move up and down in relation to the road, forces are transferred inwards towards the solid monocoque chassis, as opposed to upwards into the vehicle. As such, push-rod suspension systems allow for much greater high-speed stability, much lower levels of body-roll, and a much lower centre of gravity for the vehicle.