Cranes
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Cranes
Stefan Kühn Alf van Beem
Tower crane at the inland harbour of Trier from 1413 .
A crane constructed in 1742 , used for mounting masts to large sailing vessels in Copenhagen , Denmark . in 1850 to over 100 in the early 1860s . In the 1870s , Armstrong focused on hydraulic equipment , and he later supplied the lifting equipment used for London ’ s Tower Bridge .
Today , internal combustion engines , electric motors , and hydraulic systems allow modern cranes to lift far heavier loads than their predecessors did . Advances in design have also allowed cranes to progress in a myriad of different ways , giving us a large variety of crane types , all suited to different applications . The most common crane types are overhead or bridge cranes ( commonly used in factories ), fixed cranes , and mobile cranes . Both the fixed and mobile crane categories include multiple subtypes , suited to specific weights , applications , and purposes .
To see some of these historical cranes in action , visit the Equipment and Hire website at www . equipmentandhire . co . za . n
Sources
1 . Armato , P . 2015 . History of the crane : How we got to hydraulic cranes . H . Brown Inc . http :// hbrown . com / cranes-rigging-blog / hydraulic-cranes / history-crane-got-hydrauliccranes /
2 . Coulton , J . J . 1974 . Lifting in early Greek architecture . The Journal of Hellenic Studies , 94 ( 1974 ): 1 – 19 . The Society for the Promotion of Hellenic Studies . http :// www . michaelsheiser . com / PaleoBabble / LiftinginEarlyGreekArchitecture . pdf .
3 . Encyclopædia Britannica . 1998 . William George Armstrong , Baron Armstrong . https :// www . britannica . com / biography / William-George-Armstrong-Baron-Armstrong-of- Cragside
4 . Hendrickson III , KE ( ed .). 2015 . The Encyclopedia of the Industrial Revolution in World History ( Vol . 3 ). Lanham , MD : Rowman & Littlefield .
5 . Matthies , AL . 1992 . Medieval treadwheels : Artists ’ views of building construction . Technology and Culture , 33 ( 3 ): 510 – 547 . Johns Hopkins University Press . https :// uccshes . files . wordpress . com / 2012 / 09 / medieval-treadwheels-artists-views-of-buildingconstruction . pdf . 6 . New World Encyclopedia . 2015 . Pulley . http :// www . newworldencyclopedia . org / entry / Pulley 7 . New World Encyclopedia . 2013 . Crane ( machine ). http :// www . newworldencyclopedia . org / entry / Crane _( machine ) 8 . World Heritage Encyclopedia . 2016 . Treadwheel crane . http :// worldheritage . org / articles / eng / Treadwheel _ crane
Rod Ward
The Fairbairn steam crane outside Bristol Harbour Railway and the Industrial Museum is still operational and is regularly steamed . Tower crane atop Mont Blanc , France .
Rod Ward
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JULY 2017