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The invention of Cornelis Diricxen was as it is shown in the following plan: Let A B and B C signify two pointed gatesoriginal: "portes poinctues"; also known as miter gates, these are two gate leaves that meet at an angle pointing upstream to create a tight seal under water pressure., meeting at the point B: And also another pair of pointed gates like D E and F G, between which the aforementioned point B rests: Then there are two small sluicesoriginal: "Escluses"; in this specific context, these are likely small valves or "paddles" within the larger gate structure used to control the flow of water between chambers., one near D, the other near F: The low exterior water is on side H, and on side I the high water is held in the reservoir: To now describe the opening of this sluice, it must first be noted that the water in the two triangles A E D and C G H is at the same height as the highest interior water I, whereby the two gates D E and F G press against the point B of the two gates A B and C B, which nevertheless remain closed together: But once the water in the aforementioned two triangles A E D and C G F is emptied through the two small sluices near D and F, there is then no pressure against the two gates D E and F G as there was before; instead, the pressure comes against the two gates A B and C B, which consequently open and push the other two gates D E and F G, so that they open as well, thus releasing the water that creates the depth.
A technical engineering diagram showing the plan view of a water lock system. It features a central channel with thick, stepped masonry walls on either side. Two sets of "pointed gates" are illustrated: a lower set meeting at point B (labeled A, B, C) and an upper set (labeled D, E, F, G) that nestle around point B. The diagram uses cross-hatching to indicate water within the lock and alphabetical labels (A through I) to identify specific components and regions mentioned in the text, such as triangles A E D and C G F, and water levels H and I.