D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
D06F13/00—Washing machines having receptacles, stationary for washing purposes, with agitators therein contacting the articles being washed
D06F13/02—Washing machines having receptacles, stationary for washing purposes, with agitators therein contacting the articles being washed wherein the agitator has an oscillatory rotary motion only
Transformation or rotary movement to linear movement - uses threaded shaft to displace nut linearly and has transformers or capacitive detectors to measure nut movement