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3D Veļas mazgāšanas / veļas mazgājamo mašīnu ierīces.
Pirmo veļas mašīnu, kas tika uzsākta sērijveida ražošanā, 1907 izveidoja William Blackstone, viņai bija manuāla piedziņa (ir arī viedoklis, ka Nathaniel Briggs izdarīja pirmo). Eiropā pirmās veļas mazgājamās mašīnas sāka ražot Vācijā 1900. 1908 radās modernas, elektriski darbināmas mašīnas. Darba mehanizācija praktiski noveda pie laundress profesijas pazušanas.
A machine of an activator type is a washing machine with the presence of an activator – a rotating shaft with blades or a disk that provides mixing during washing.
Šāda veida paplāksnes īpaša iezīme ir zemas putas, tāpēc pulveri roku mazgāšanai ir piemēroti arī izmantošanai aktivatora tipa mašīnās.
The basis of the design of a washer of an activator type is a tank made of stainless steel or plastic. The upper part (for loading clothes) – removable or flip cover. At the bottom or in the lower part of one of the walls there is an activator – a plastic flat circle or a shaft with protrusions – blades. The axis of the activator comes out of the tank, driven by an electric motor.
The activator machines of the Soviet period, as a rule, had a vertical tank of aluminum or stainless steel with a capacity of up to 30 liters and dimensions up to about 400x400x600 (height) mm, with a bottom in the shape of a semicircle. An activator (most often made of bakelite) with a diameter of about 200 mm, driven through a belt drive by a capacitor electric motor located under the tank, was located on one of the flat walls along the axis of the semicircle of the bottom. The control included a mechanical time relay for 15 minutes (with a specified accuracy of 1 minute), automatically turning on the electric motor alternately in different directions through pauses. Also (on later models) the engine power could be separately regulated (2 or 3 “wash modes”).