B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 21/04 (2006.01) B01D 21/18 (2006.01) B01D 21/24 (2006.01) C02F 1/40 (2006.01)
Patent
CA 2111473
A scum removal apparatus operable in association with a movable member operating within a sewage treatment pool is provided with a trough, a weir member and a transmission mechanism. The trough is fixed in position, and the transmission mechanism transmits a force from the movable member to the weir member to cause the latter to move up and down with respect to a fluid surface level. When the weir member is sunken, the scum is drawn into the trough, while when the weir member floats above the fluid surface level, the drawing of the scum into the trough is interrupted. Support of the weir member is carried nut through a rotary shaft and the weir member is employed in the form of an elongated member having an elliptical cross-section so that the drawing of the scum can be carried out smoothly and stably with the transmission mechanism simplified in structure. Sealing between the weir member and the trough is assuredly and simply achieved by a fixed-type sealing means on the side of the trough and end plates of the weir member.
Fujiwara Michihiro
Fujiwara Toshimi
Kirby Eades Gale Baker
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