Search results
Results from the WOW.Com Content Network
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.
Level luffing crane and hopper (center-left of the picture) operating side-by-side at the multi-purpose wharf." Date: 30 July 2007 (original upload date) Source:
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]
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.
Electric cranes, supplied by electricity from a single centralised generating station or prime mover, could offer a lot of power per crane, without requiring the high cost of an equivalent steam plant on each crane. Port cranes were almost all luffing jib cranes, often with a long reach. Their lifting capacity depended on how far they were ...
Level luffing crane, a type of crane where the jib, rather than being fixed, can be raised and lowered; Luffing, when a sailing sheet is eased so far past trim that airflow over the surface is disrupted; The leading edge of a sail
The acquisition of Greenland by the United States, as proposed by President Donald Trump, continues to make waves on the other side of the Atlantic as a Danish politician became the latest voice ...
Chebyshev linkages did not receive widespread usage in steam engines, [citation needed] but are commonly used as the 'Horse head' design of level luffing crane.In this application the approximate straight movement is translated away from the line's midpoint, but it is still essentially the same mechanism.