| 摘要 |
1,161,379. Washing-machine filter. WHIRLPOOL CORP. 6 March, 1968 [11 July, 1967], No.10993/68. Heading BID [Also in Division Dl] A filter 19, located in the closed circuit of a domestic clothes-washing machine (Fig. 1, not shown), comprises a member 46 spaced by ribs 53a from the wall 25 of casing 24 to form therewith an edge-type filter element, when the wash water is drawn by pump (15) upwards through the filter (Fig. 2, not shown). When ,pump (15) is reversed to empty the washing tub (Fig. 3), the water enters casing 24 through its (normal) outlet port 30, flowing tangentially against member 46 and raising the pressure in space 36, which deforms upper diaphragm 27 into its second over-centre shape, lifting member 46 clear of wall 25, after which member 46 is rotated by the incoming water and the lint trapped thereon is washed away through (normal) inlet 29 to drain (16); Member 46 is rotatably suspended from diaphragm 27 by pivot 51, 52 engaging in undercut recess 50. Member 46 has external, axially extending [ribs 53 of sawtooth shape (Figs. 5,6, not shown) forming the edge filter surface. Casing 24, member 46 and diaphragm 27 are made of polypropylene. The washing machine (Fig. 1) has one electric motor, driving pump (15) and agitator (13), and a pair of two-way valves (17, 22) which change positions between the washing cycle and tub-emptying cycle. The pump runs at a higher speed for tub-emptying. |
