| 摘要 |
810,864. Washing-machines. DEMARET, J. June 23, 1955 [June 29, 1954; July 23, 1954 ; July 24, 1954], No.18162/55. Class 138 (2). A washing-machine comprises a rotary pulsator 7 located at the bottom of a container 1 and having a number of peripheral recesses 20, the pulsator being adapted simultaneously to stir the washing liquid and to produce therein alternate zones of relatively low and high pressure, and being provided with passageways 21 for admitting air into the low-pressure zones at the bases of the recesses 20. The pulsator 7 comprises two circular discs 17, 18 interconnected by ribs 19 and mounted on a hollow shaft 6 rotated by a motor 9 through a belt and pulleys 10, 12. Air is supplied through a pipe 14 provided with an adjustable valve 15, and a heating fluid may be supplied through a pipe 16. The lower disc 18 may have openings 22 provided with downwardly projecting lips (Fig. 3, not shown) The container 1 has a double bottom 2, 3, the part 2 being perforated, and may be provided with a false perforated bottom 2. The pulsator 7 may be capped by a screen 8, |
