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A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. [ 1 ] Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.
This specific example uses a level luffing mechanism to maintain the load at approximately the same vertical height as the jib moves through its range of travel. A jib or jib arm is the horizontal or near-horizontal beam used in many types of crane to support the load clear of the main support. [1] [2] An archaic spelling is gib. [3]
Urban Dictionary Screenshot Screenshot of Urban Dictionary front page (2018) Type of site Dictionary Available in English Owner Aaron Peckham Created by Aaron Peckham URL urbandictionary.com Launched December 9, 1999 ; 25 years ago (1999-12-09) Current status Active Urban Dictionary is a crowdsourced English-language online dictionary for slang words and phrases. The website was founded in ...
Urban Dictionary can answer that question. For decades, the crowdsourced digital library has chronicled slang and ubiquitous terms that pervade social media — and yes, its user-submitted nature ...
In honor of Black Twitter's contribution, Stacker compiled a list of 20 slang words it brought to popularity, using the AAVE Glossary, Urban Dictionary, Know Your Meme, and other internet ...
A male name (uncommon in the UK). A shortening of the female name Jessica (usually spelled "Jessie"). jock a Scotsman (slang) a Scottish private soldier (slang) (UK: squaddie) slang term for an athlete slang term for the undergarment called an athletic supporter or jockstrap: joint piece of meat for carving *
A ring crane is a form of large construction crane with a luffing jib. It is distinguished by its slew pivot [i] being in the form of a ring-shaped track, rather than a narrow central spindle. The broad base this gives to the slewing section above allows it to slew whilst carrying extremely heavy loads. Ring cranes are rare.
The slang term "Chad" originated in the UK during World War II and was employed in a similar humorous manner as Kilroy was here. [1] It later came into use in Chicago [2] as a derogatory way to describe a young, wealthy man from the city's northern suburbs, typically single and in his twenties or early thirties. [2]