Automatic water gate installation
阅读：861发布：2022-05-28
专利汇可以提供Automatic water gate installation专利检索，专利查询，专利分析的服务。并且The passage in which an automatic gate for constant upstream level control is installed, is formed at its entry end with vertical partitions disposed perpendicular to the longitudinal axis of such passage, and the angles formed by such vertical partitions and the side walls of the passage are truncated by oblique faces, the intersections of which with such passage side walls are in close proximity to the side edges of the gate apron.，下面是Automatic water gate installation专利的具体信息内容。
1. The combination of a canal having a narrowed section for installation of a water gate, a water gate mounted in said narrowed section and having a sector-shaped apron provided with a control float so that such gate will maintain automatically a constant water level upstream therefrom, and a foreshortened entry connection between the canal and the upstream end of said narrowed section, said gate being mounted in said narrowed section so that said apron thereof is located a minimal distance from the intersection of the downstream end of said entry connection with said narrowed section, the upstream end of said entry connection having a cross-sectional area substantially greater than that of the downstream end thereof, but substantially less than that of the adjoining part of the canal, and the bottom and side walls of said entry connection being constituted of angular surfaces and being of such shortness in the direction of flow of the water that such surfaces produce a maximum increase in speed of the flow through such entry connection without producing any noticeable modification in the entry level of the flow into said narrowed section.
2. The combination of a canal having a narrowed section for installation of a water gate, the side walls of said narrowed canal section sloping, a water gate mounted in said narrowed section and having a sector-shaped apron provided with a control float so that such gate will maintain automatically a constant water level upstream therefrom, and a foreshortened entry connection between the canal and the upstream end of said narrowed section, said gate being mounted in said narrowed section so that said apron thereof is located a minimal distance from said entry connection, and said entry connection being constituted of angular surfaces of such shortness that the increase in speed of the flow through such entry connection does not produce any noticeable modification of water level in front of the gate the upstream end of said entry connection being composed of vertical partition walls on each side of the canal and disposed perpendicularly to the axis of the canal, the angle formed between each of said partition walls and an associated sloping side wall of said narrowed section, and cOnstituting one side of said foreshortened entry connection, being truncated, the intersection of such truncation with such associated narrowed section side wall being in close proximity and at said minimal distance from the line of contact of an edge of said gate apron with such associated narrowed section side wall.
3. The combination defined in claim 2, in which said truncation comprises a substantially triangularly-shaped surface, the base of which forms the lower portion of said one side of said entry connection.
4. The combination defined in claim 3, in which the apex of said triangularly-shaped surface is short of the height of said one side of said entry connection.
5. The combination defined in claim 4, including on each side of said entry connection, a second surface located between a partition wall and said triangularly-shaped surface below the apex of the latter, said second surface above such apex intersecting with the associated section side wall so that each side of said entry connection forms an angular line of intersection with a side wall of said narrowed section.
6. The combination of a canal having a narrowed section for installation of a water gate, the side walls of said narrowed section sloping, a water gate mounted in said narrowed section and having a sector-shaped apron provided with a control float so that such gate will maintain automatically a constant water level upstream therefrom, and a foreshortened entry connection between the canal and the upstream end of said narrowed section, said gate being mounted in said narrowed section so that said apron thereof is located a minimal distance from said entry connection, and said entry connection being constituted of angular surfaces of such shortness that the increase in speed of the flow through such entry connection does not produce any noticeable modification of water level in front of the gate the upstream end of said entry connection being composed of vertical partition walls on each side of the canal and disposed perpendicularly to the axis of the canal, the angle formed between each of said partition walls and an associated side wall of said narrowed section, and constituting one side of said foreshortened entry connection, being truncated by a first face cut, the intersection between which and such associated side wall is cut in its lower area by a second cut face, the angular sections of the line forming the intersection of the two cut faces and the associated side wall being close together and at said minimal distance from the line of contact of an edge of said gate apron with such associated side wall.
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