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Bar gates, especially manually operated ones, are often counterweighted to allow easier manual control. [7] Bar gates are frequently paired end to end or closely offset to block traffic in both directions. Some bar gates also have a second arm which hangs 30 to 40 cm below the upper arm when lowered to increase approach visibility.
Description: A training booket prepared for an edit-a-thon. The source odt is available by emailing the author. This booklet fulfills the need of students, who attend the course but need extensive notes to take home.
Original file (1,125 × 1,625 pixels, file size: 405 KB, MIME type: application/pdf, 2 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Many people consider four-quadrant gates to be safer than two-quadrant gates because they prevent drivers from illegally and dangerously driving their vehicles around lowered gates, in an attempt to pass before the train does. However, these gates are only safer if there is a way of ensuring that the crossing is clear before clearing the train ...
Yett hanging in the main entrance of Blackness Castle, Scotland, showing attached bolts and pierced construction.Wrought in 1693. [1]A yett (from the Old English and Scots language word for "gate") [2] is a gate or grille of latticed wrought iron bars used for defensive purposes in castles and tower houses. [3]
bōsen (棒線, "bar line") Indicates a lengthened vowel sound. Often used with katakana. The direction of writing depends on the direction of text. ゛ 212B: 1-1-11: 309B (standalone), 3099 : dakuten (濁点, "voiced point") nigori (濁り, "voiced") ten-ten (点々, "dots") Used with both hiragana and katakana to indicate a voiced sound.
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 surge system.
A drawbar is a defensive implement used to secure a door or gate in a medieval or Early Modern building such as a castle, [1] [2] but also churches and townhouses.. When drawn across the full length of the door, it prevents the door or gate from being opened.