Home Technology
The Toilet Yes...those tales you've heard are true. The toilet was first patented in England in 1775, invented by one Thomas Crapper, but the extraordinary automatic device called the flush toilet has been around for a long time. Leonardo Da Vinci in the 1400's designed one that worked, at least on paper, and Queen Elizabeth I reputably had one in her palace in Richmond in 1556, complete with flushing and overflow pipes, a bowl valve and a drain trap. In all versions, ancient and modern, the working principle is the same. Tripping a single lever (the handle) sets in motion a series of actions. The trip handle lifts the seal, usually a rubber flapper, allowing water to flow into the bowl. When the tank is nearly empty, the flap falls back in place over the water outlet. A floating ball falls with the water level, opening the water supply inlet valve just as the outlet is being closed. Water flows through the bowl refill tube into the overflow pipe to replenish the trap sealing water.......
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