The world's first washing machine was born in 1858 and was made by Hamilton Smith in Pittsburgh, USA. The washing machine consists of a drum with a straight shaft with paddle-shaped leaves. The shaft passes through. Shake the crank that is linked to it.
Although the washing machine invented by Hamilton Smith was laborious and damaged during the laundry process, it marked the beginning of the washing machine and was the prototype of the washing machine. The invention of the subsequent feature-rich washing machine was thus launched.
Washers and drum washing machines, such as washing machines and drum washing machines, seem to have nothing to do with the washing machine invented by Hamilton Smith, but everyone's principle is the same. So what is better with the pulsator and the roller? The washing machine is a friction washing machine to clean the dirt The advantage of artificial imitation is that the cleaning clothes are more tidy, but the damage to the clothes is greater; while the drum washing machine brings the laundry to a high place and then drops through the rotation of the drum in the cleaning process, so as to achieve the cleaning effect of the knocking laundry. The damage to the clothes is small, and the cleanliness is normal. Whether it is a pulsator or a drum washing machine, now it usually has other value-added functions, such as drying, high temperature sterilization, etc. Therefore, the price range is relatively large. You can choose according to your needs.