In the 1940s, Thor introduced the Automagic hybrid washer/dishwasher. The top-loading machine included both a removable clothes washing drum and a dish-washing drum. The Automagic was widely marketed but disappeared from the marketplace soon after its introduction, as many consumers soured on the idea of washing dirty clothing and dishes in the same machine
Even on some expensive washers, the outer drum of front loading machines is often made of plastic. This makes changing the main bearings difficult, as the plastic drum usually cannot be separated into two halves to enable the inner drum to be removed to gain access to the bearing.
This design places the clothes in a vertically mounted perforated basket that is contained within a water-retaining tub, with a finned water-pumping agitator in the center of the bottom of the basket. Clothes are loaded through the top of the machine, which is usually but not always covered with a hinged door.
In some top loaders, the motor runs only in one direction. During agitation, the transmission converts the rotation into the alternating motion driving the agitator. During the spin cycle, the timer turns on a solenoid which engages a clutch locking the motor's rotation to the wash basket, providing a spin cycle.
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Efficient cleaning: Front-loaders usually use less energy, water, and detergent compared to the best top-loaders.[90] "High Efficiency" washers use 20% to 60% of the detergent, water and energy of "standard" washers.
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There are many variations of the two general designs. Top-loading machines in Asia use impellers instead of agitators. Impellers are similar to agitators except that they do not have the center post extending up in the middle of the wash tub basket..
Washing machines perform several rinses after the main wash to remove most of the detergent. Modern washing machines use less water due to environmental concerns; however, this has led to the problem of poor rinsing on many washing machines on the market,[93] which can be a problem to people who are sensitive to detergents.
Many home washing machines use a plastic, rather than metal, outer shell to contain the wash water; residue can build up on the plastic tub over time. Some manufacturers advise users to perform a regular maintenance or "freshening" wash to clean the inside of the washing machine of any mold, bacteria, encrusted detergent, and unspecified dirt more effectively than with a normal wash.
Agitators are devices which puts objects into motion, here clothes. They have a pole with fins that protrudes from the bottom of the drum and moves the clothes around. (see the image above)
These are the entry-level washing machines and have two tubs, one for washing and the other for drying.
Washing results are often better
Laundering by hand involves soaking, beating, scrubbing, and rinsing dirty textiles. Before indoor plumbing, the washerwoman (laundress) or housewife also had to carry all the water used for washing, boiling, and rinsing the ;.
Clothes washer technology developed as a way to reduce the manual labor spent, providing an open basin or sealed container with paddles or fingers to automatically agitate the clothing..
After the items were washed and rinsed, water had to be removed by twisting. To help reduce this labor, the wringer/mangle machine was developed. As implied by the term "mangle," these early machines were quite dangerous, especially if powered and not hand-driven..
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What is now referred to as an automatic washer was at one time referred to as a "washer/extractor", which combined the features of these two devices into a single machine,.
