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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.
The Meccano cranes are these because they are specifically level-luffing cranes and are contemporaneous with the initial development of such cranes. They indicate how this crane design (which some have already wanted to delete, through not knowing that it was different to other non-level cranes) was making it to the public perception of the ...
Konecranes Oyj is a Finnish company, headquartered in Hyvinkää, which specializes in the manufacture and service of cranes and lifting equipment as well as the service of machine tools. Konecranes is one of the largest crane manufacturers in the world [ 3 ] and it produces about one in ten of the world's cranes, [ 4 ] of which around 80% are ...
Level luffing crane; P. Patented track crane; R. Ring crane; X. XGC88000 crawler crane This page was last edited on 16 May 2019, at 22:59 (UTC). Text is available ...
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Kirow Ardelt GmbH Eberswalde, referred to as Ardelt, is a German crane manufacturer. The company specialises in manufacturing double jib level luffing cranes which are based on the patented double jib principle. Ardelt has produced more than 4,700 harbour cranes. [1] Ardelt also makes single jib-level luffing cranes and balancer cranes.
A telescopic mobile crane with truss luffing jib. A telescopic crane has a boom that consists of a number of tubes fitted one inside the other. A hydraulic cylinder or other powered mechanism extends or retracts the tubes to increase or decrease the total length of the boom. These types of booms are often used for short term construction ...
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]
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