What Was The Washing Machine Before The Invention Of The Electric Washing Machine
In 1858, an American named Hamilton Smith made the world's first washing machine in Pittsburgh. The main component of this washing machine is a round drum, which contains a straight shaft with paddle shaped leaves. The shaft rotates by shaking the crank connected to it. In the same year, Smith obtained the patent for this washing machine. But this washing machine was labor-intensive and damaged clothes, so it was not widely used, but this marked the beginning of using machines for washing. The following year, a washing machine using a pestle as a stirrer appeared in Germany. When the pestle moved up and down, wooden nails with springs continuously acted on the clothes. In the late 19th century, washing machines had developed into an octagonal washing cylinder with only a handle rotating. During washing, hot soapy water was placed in the cylinder, and after washing, the clothes were squeezed dry by a rolling liquid device.

Wooden hand washing machine
In 1874, the "hand washing era" faced unprecedented challenges, and American Bill Blacks invented the wooden hand washing machine. Blacks' washing machine has an extremely simple structure, which involves installing 6 blades in a wooden cylinder and using a handle and gear transmission to flip clothes inside the cylinder, thereby achieving the goal of "cleaning clothes". The emergence of this device has greatly inspired those who have been pondering to improve their efficiency in life, and the process of improving washing machines has begun to accelerate significantly.
In the late 19th century, washing machines had developed into an octagonal washing cylinder with only a handle rotating. During washing, hot soapy water was placed in the cylinder, and after washing, the clothes were squeezed dry by a rolling liquid device.

Octagonal laundry tank
In 1880, steam washing machines appeared again in the United States, and steam power began to replace manual labor. After hundreds of years of development and improvement, modern steam washing machines have made unparalleled improvements compared to the early days, but the principle is the same. The functions of modern steam washing machines include steam washing and steam drying, adopting an intelligent water circulation system that can simultaneously spray high concentration detergent and high-temperature steam on clothes, running through the entire washing process, achieving a globally innovative "steam washing" new washing method. Unlike ordinary drum washing machines that require heating the entire drum of water during washing, steam washing aims to deeply clean clothes. When a small amount of water enters the steam generation box and is converted into steam, it decomposes clothing stains through high-temperature spraying. Steam washing is fast and thorough, requiring only a small amount of water while saving time. For winter clothes that have been stored in the wardrobe for a long time and produce wrinkles and odors, they can be naturally stretched and smoothed out. The working principle of "steam drying" is to spray a constant amount of steam on clothes, unfold them, and then perform a constant temperature condensation drying. Through this method, heavy clothing not only dries faster, but also has a stretching and ironing effect.
After steam washing machines, hydraulic washing machines and internal combustion engine washing machines also emerged one after another. The hydraulic washing machine includes a washing cylinder, a power source, and a connecting piece connected to the ship. The washing machine is equipped with inlet and outlet holes, the washing machine shell is equipped with a power source, the washing cylinder is equipped with a clothing inlet hole, and the inlet is equipped with a sealing cover. The washing machine is connected to the ship through the connecting piece. It does not require any electricity and only requires natural river water power to wash clothes, freeing boatmen from the hassle of washing clothes on board, saving time, and reducing the intensity of household chores.

Steam washing machine
