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Electric Gate Options. A sliding electric gate with electric motor and backup battery in case of mains failure. Note also the Infrared obstacle sensor located on the wall to prevent the gate from closing while a vehicle or other obstacle is in the way. Driveway gate openers can be the rollback (sliding) type that retracks a gate along the fence ...
A gate or gateway is a point of entry to or from a space enclosed by walls. The word derived from old Norse "gat" [1] meaning road or path; But other terms include yett and port. The concept originally referred to the gap or hole in the wall or fence, rather than a barrier which closed it. Gates may prevent or control the entry or exit of individuals, or they may be merely decorative. The ...
A swing-door operator (or swing-door opener or automatic swing-door operator) is a device that operates a swing door for pedestrian use. It opens or helps open the door automatically, waits, then closes it.
Tainter gates are usually controlled from above with a chain/gearbox/ electric motor assembly. A critical factor in Tainter gate design is the amount of stress transferred from the skinplate through the radial arms and to the trunnion, with calculations pertaining to the resulting friction encountered when raising or lowering the gate.
A kissing gate is a gate that allows people, but not livestock, to pass through. The normal construction is a half-round, rectangular, trapezoidal or V-shaped part-enclosure with the free end of a hinged gate trapped between its arms.
Floodgate. Floodgates, also called stop gates, are adjustable gates used to control water flow in flood barriers, reservoir, river, stream, or levee systems. They may be designed to set spillway crest heights in dams, to adjust flow rates in sluices and canals, or they may be designed to stop water flow entirely as part of a levee or storm ...
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