Wier construction
AssigneeWaterschap Kromme Rijn
InventorWilhelmus G. J. De Wit
Life of this patent
Estimating the term…
Abstract
A weir construction has a weir gate which is tiltable around an axis suspended in a canal section above the bottom thereof, whereby the axis is situated between, and at a distance from, the lower and the upper edge of the weir gate closer to the lower edge of the weir gate than to the upper edge thereof, which weir gate cooperates with a floating counterweight for opening and closing thereof by rotation around the axis. In order to obtain an improved sealing of the weir gate and the canal section, a flexible seal strip is provided between the lower edge of the weir gate and the bottom of the canal section, which seal strip allows curvilinear movement of the weir gate lower edge and prevents flow of water between the lower edge of the weir gate and the bottom of the canal section.
Claims12
Weir construction, comprising:
- a weir gate which is tiltable around an axis suspended in a canal section above the bottom thereof, said axis being situated between, and at a distance from, a lower edge and an upper edge of said weir gate, said axis being closer to said lower edge than to said upper edge;
- control means which cooperate with said weir gate to open and close said weir gate by rotation about said axis;
- flexible seal means disposed between said lower edge of said weir gate and the bottom of said canal section, said seal means allowing curvilinear movement of said lower edge of said weir gate and preventing flow of water between said lower edge of said weir gate and the bottom of said canal section;
- and support means for supporting said seal means, said support means being situated opposite and along a curvilinear trajectory of said lower edge of said weir gate so that said seal means are supported at a side of said support means facing said lower edge of said weir gate.
Dependencies are inferred from the claim text.