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Wheels & Tracks was a military history magazine covering the history of military vehicles worldwide and published quarterly in the United Kingdom by After The Battle publication. It was founded by Bart Vanderveen in 1982. When Vanderveen died in 2001, publication ceased. The final issue was issue 75, April 2001.
Tracks may be broadly categorized as live or dead track. Dead track is a simple design in which each track plate is connected to the rest with hinge-type pins. These dead tracks will lie flat if placed on the ground; the drive sprocket pulls the track around the wheels with no assistance from the track itself.
Track technology is an industrial material handling system which uses linear motors to move material along a track. It has been variously termed a smart conveyance system, intelligent track system, industrial transport system, independent cart technology, smart carriage technology, linear or extended or flexible transport system, or simply a conveyor or conveyance platform [citation needed].
Holt began producing models under the Caterpillar brand. His first production model had a dual-track frame 30 inches (760 mm) high by 42 inches (1,100 mm) wide by 9 feet (2.7 m) long. Its tracks used 3 by 4 inches (76 mm × 102 mm) slats made of the same redwood used previously to produce wagon wheels.
After the start of the Industrial Revolution it became possible to create railways with iron tracks and wheels, which reduced the friction involved in moving wagons and made longer horse-hauled trains possible. These could move more material over longer distances, allowing the construction of railways from mines and quarries to transshipment ...
Rail vehicle wheels are usually mounted on a solid axle, so they turn at the same speed.When a vehicle turns the outer wheel has to travel further than the inner wheel. On a road vehicle, this is usually achieved by allowing the wheels to move independently, and fixing the front wheels in an arrangement known as Ackermann steering geometry.
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Of course the ruts were made by the wheels of carts, and the carts were of a sensible size for horse-drawn carts prior to the industrial era, pretty much the same as the size of the pre-railway carts at the colliery where Stephenson worked: that is the only connection.