/kloc-In the late 8th century, the British inventor Joseph Bram improved the design of the toilet on the basis of Cummings' invention. He used some components, such as a three-ball valve to control the water flow in the water tank, which can seal the water outlet; In addition, there are U-shaped pipes, which can ensure that the smell of sewage pipes will not be smelled by users. Brame's improved toilet was patented at 1778.
1870, British ceramic craftsman Taford designed the integral ceramic toilet. It costs less than a metal toilet. It has a snake-shaped drainage pipe, that is, an S-shaped pipe, or a water storage port of a sewer. It always keeps some water, which is equivalent to a gasket to block up the odor accumulated in the pipeline.