Textiles: fluid treating apparatus – Machines – Liquid flowing
Patent
1997-06-26
1999-09-07
Warden, Jill
Textiles: fluid treating apparatus
Machines
Liquid flowing
68198, 68177, 68205R, D06F 1702
Patent
active
059469501
ABSTRACT:
A pump has a bearing stand (3) in which a pump shaft (1) is mounted to be driven by an electric motor. The shaft (1) mounts an impeller (9) having blades (10) which cause fluid entering through an axial inlet nozzle (11) to flow, by rotation of the impeller in one direction, through a centrifugal exit nozzle (12) formed by a suitably located quarter toroid (13a), and a half toroid (14), formed as sheet metal pressings. When the impeller (9) is rotated in the opposite direction, the centrifugal nozzle (12) acts as an entry nozzle and the axial nozzle (11) acts as a discharge nozzle. The pump is particularly suitable for treating textile yarns since said one direction of rotation can be used for out-to-in treatment dye liquor flow where relatively high resistance is encountered and said opposite direction of rotation can be used for in-to-out treatment dye liquor flow where resistance is relatively lower.
REFERENCES:
patent: 3092990 (1963-06-01), Schyns
patent: 3967923 (1976-07-01), Ameling
patent: 4747757 (1988-05-01), Haentjens
patent: 5039320 (1991-08-01), Hoglund
patent: 5351351 (1994-10-01), Ono
International Search Report for International Application No. GB 9613551.2; Sep. 30, 1996.
Clifford Graham Frank
Tsui William Tak Ming
Lee Paul J.
Palmer Investments Limited
Warden Jill
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