Search results
Results from the WOW.Com Content Network
It can also carry the Pit Wheel at its opposite end. Bedstone The Bedstone is the bottom of a pair of millstones. It does not move. The upper stone is called the Runner Stone. Crown Wheel The Crown Wheel is a driving wheel located at the top of the Upright Shaft Great Spur Wheel The Great Spur Wheel is a large gear attached to the Upright Shaft.
In gear generation, the tooth flanks are obtained as an outline of the subsequent positions of the cutter, which resembles in shape the mating gear in the gear pair. There are two machining processes employed shaping and milling. There are several modifications of these processes for different cutting tool used. [4]
A winding engine is a stationary engine used to control a cable, for example to power a mining hoist at a pit head. Electric hoist controllers have replaced proper winding engines in modern mining , but use electric motors that are also traditionally referred to as winding engines .
The most visible feature of a traditionally-built mine shaft is the headframe (or winding tower, poppet head or pit head) which stands above the shaft. Depending on the type of hoist (or winder) used, the top of the headframe will either house a hoist motor or a sheave wheel (with the hoist motor mounted on the ground).
George "Georgie" Brunnhoelzl III (born October 28, 1982) is an American professional stock car racing driver who competed part-time in the NASCAR Whelen Modified Tour. He is the son of George Brunnhoelzl Jr. , who competed in the Modified Tour from 1985 to 2001.
Chain drive was the main feature which differentiated the safety bicycle introduced in 1885, with its two equal-sized wheels, from the direct-drive penny-farthing or "high wheeler" type of bicycle. The popularity of the chain-driven safety bicycle brought about the demise of the penny-farthing, and is still a basic feature of bicycle design today.
A gear train or gear set is a machine element of a mechanical system formed by mounting two or more gears on a frame such that the teeth of the gears engage.. Gear teeth are designed to ensure the pitch circles of engaging gears roll on each other without slipping, providing a smooth transmission of rotation from one gear to the next. [2]
In a piston engine, either a timing belt (also called a cambelt) or timing chain or set of timing gears is a perishable component used to synchronize the rotation of the crankshaft and the camshaft. This synchronisation ensures that the engine's valves open and close at the correct times in relation to the position of the pistons.