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Woodturning is the craft of using a wood lathe with hand-held tools to cut a shape that is symmetrical around the axis of rotation. Like the potter's wheel, the wood lathe is a mechanism that can generate a variety of forms.
The turning processes are typically carried out on a lathe, considered to be the oldest of machine tools, and can be of different types such as straight turning, taper turning, profiling or external grooving. Those types of turning processes can produce various shapes of materials such as straight, conical, curved, or grooved workpieces.
A hand-cranked mangle appeared on top after 1843 when John E. Turnbull of Saint John, New Brunswick patented a "Clothes Washer With Wringer Rolls". [5] The first geared wringer mangle in the UK is thought to date to about 1850, when one was invented by Robert Tasker of Lancashire . [ 6 ]
Steel mill with two arc furnaces. Steelmaking is the process of producing steel from iron ore and/or scrap.Steel is made from iron and carbon. On its own, iron is not strong, but a low concentration of carbon – less than 1 percent, depending on the kind of steel – gives steel strength and other important properties.
The small plate shown in the first picture is a hand lapping plate. That particular plate is made of cast iron. In use, a slurry of emery powder would be spread on the plate and the workpiece simply rubbed against the plate, usually in a "figure-eight" pattern. Small lapping machine. The second picture is of a commercially available lapping ...
Modern metal lathe A watchmaker using a lathe to prepare a component cut from copper for a watch. A lathe (/ l eɪ ð /) is a machine tool that rotates a workpiece about an axis of rotation to perform various operations such as cutting, sanding, knurling, drilling, deformation, facing, threading and turning, with tools that are applied to the workpiece to create an object with symmetry about ...
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Sifeng Model 12 HP 2WT with 5.6 tonnes of rice, Bangladesh A Changzhou Hengfeng Two-wheel tractor ('Walking Tractor') in Hsipaw ().. Research has identified a number of terms used to identify two-wheel tractors, including "walk-behind tractor; iron-ox; walking tractor; mechanical ox; ox-machine; pedestrian tractor; hand tractor; single-axle tractor; and in Asia, tok-tok".