Construction And Fabrication Of Iron Truck Of Capacity 200kg

After the creation and widespread application of footpaths, which are extensively discussed in Ways of the World (Lay 1992), the world's second major transport development was the use of animals, initially as beasts of burden and subsequently for pulling ploughs and sleds. The invention of the wheel was a much later development. When freight first had to be moved, human hands, shoulders, hips, and heads were all gainfully employed. When the capacity of the unaided human was exceeded, the solid stick was the obvious tool to use, first to transfer the load to the shoulders and then to allow it to be shared as a yoke between two people. For less coherent loads, the technology expanded to include wicker baskets hung from the shoulders by rope or carried on the head. Such people powered freight techniques are still in quite effective use today in parts of Asia and Africa.

Experienced porters can carry 25 kg whilst travelling at 25 km/day. For shorter distances, loads of about half body-weight are common, and peak loads over very short distances can exceed 175 kg. The Chinese have used labourers carrying slings and bamboo poles to move loads of up to a tonne distributed at about 25 kg per bearer.

After series of development, the next stage of transport development was probably associated with the enhancement of the sled and travois. Small rollers between the pole ends of the travois or under a sled would have usefully reduced the dragging friction. A number of societies used such devices which were commonly called truck or truckle carts.(Maxwell,L.2005)