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Grids differed in length from 2.4 to 9.1 metres (7 + 3 ⁄ 4 to 30 ft) and in width from 1.0 to 3.0 metres (40 to 120 in), while the pits beneath grids were 0.0 to 2.5 metres (0 to 98 in) deep. [6] Cattle grids, as they are called in Great Britain, Ireland, and South Africa, are known by a wide variety of other names in other parts of the world.
The Tainter gate is used in water control dams and locks worldwide. The Upper Mississippi River basin alone has 321 Tainter gates, and the Columbia River basin has 195. A Tainter gate is also used to divert the flow of water to San Fernando Power Plant on the Los Angeles Aqueduct. [1] Tainter gate at McAlpine Dam, Ohio River, Louisville, Kentucky
Formerly emptied into the Witham at Lodowick's or Trinity Gowt." "Lodowick' or Lodovick's Gowt. The outfall of the North Forty-Foot Drain, situated on the west side of the old channel of the Witham, about 1 ⁄ 4 mile [400 m] above Boston Church. It had a waterway of 15 feet [4.6 m]. Was also called Trinity Gowt. [6]
1: Tube connecting the chamber to the high water side of the sluice 2: Gates to regulate the water level in the chamber. Only one gate may be opened at a time 3: Tube connecting the chamber to the low water side of the sluice 4: The chamber in which the water level can be controlled 5: Door with larger surface 6: Door with smaller surface.
The half-angle (between the taper surface and the axis of the pipe) is arctan(1 ⁄ 32) ≈ 1.7899° ≈ 1° 47′. The standard for Nominal Pipe Size (often abbreviated NPS, which should not be confused with the abbreviation NPS for the straight thread form standard) is loosely related to the inside diameter of Schedule 40 series of sizes.
It holds that because surface water is a "common enemy" of landowners, each landowner has the right to alter the drainage pattern of his land (for example by building dikes or drainage channels) without regard for the effects on neighboring parcels, as long as that water flows to where it otherwise would have naturally flowed.
In this underwater lift, the chamber was 80 ft (24.4 m) long and 60 ft (18.3 m) deep and contained a completely enclosed wooden box big enough to take a barge. This box moved up and down in the 60 ft (18.3 m) deep pool of water. Apart from inevitable leakage, the water never left the chamber, and using the lock wasted no water.
In the modern standard metric version, it is simply a size number, where listed diameter size is the major outer diameter of the external thread. For a taper thread, it is the diameter at the "gauge length" (plus/minus one thread pitch) from the small end of the thread.
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