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I removed a section of this article and recreated it as " pile lighthouse". I've read a fair amount about lighthouses over the years, and the Florida structures are always classed as a separate style of lighthouse from the screw-pile ones. -- AlbertHerring 23:24, 18 August 2006 (UTC)
Google Books reports the existence of On Submarine Foundations, Particularly the Screw-pile and Moorings by Alexander Mitchell in published by Mitchell's Screw-pile and mooring, 1848. [1] At present the article does not have a bibliography and so I did not add this. Worldcat reports there's a number of editions. [2] Snippets are available on line that look fascinating as it appears the screw-piles were also used to anchor ship moorings. [3] [4]
There's also Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers, Metallurgists, Mine Proprietors, Engineers, Shipbuilders, Scientists, Capitalists ..., Volume 46 by Sholto Percy; Knight and Lacey, 1847 which mentions that the screw-piles were useful as waves went through them meaning little vibration was transmitted to the structure. [5]
I don't know if we want to add this to the article but while the initial patent was in 1933 it appears that in 1847 Alexander Mitchell and his son, John Mitchell, applied to have the patent extended by another 14 years as they initially had not been able to take advantage of the patent. They were successful.(page 115 to 122) That document also mentions a benefit of screw piles over more solid foundations in that the waves went through the piles and there was very little spray up onto the lighthouse. -- Marc Kupper| talk 04:32, 12 March 2016 (UTC)
![]() | This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
|
I removed a section of this article and recreated it as " pile lighthouse". I've read a fair amount about lighthouses over the years, and the Florida structures are always classed as a separate style of lighthouse from the screw-pile ones. -- AlbertHerring 23:24, 18 August 2006 (UTC)
Google Books reports the existence of On Submarine Foundations, Particularly the Screw-pile and Moorings by Alexander Mitchell in published by Mitchell's Screw-pile and mooring, 1848. [1] At present the article does not have a bibliography and so I did not add this. Worldcat reports there's a number of editions. [2] Snippets are available on line that look fascinating as it appears the screw-piles were also used to anchor ship moorings. [3] [4]
There's also Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers, Metallurgists, Mine Proprietors, Engineers, Shipbuilders, Scientists, Capitalists ..., Volume 46 by Sholto Percy; Knight and Lacey, 1847 which mentions that the screw-piles were useful as waves went through them meaning little vibration was transmitted to the structure. [5]
I don't know if we want to add this to the article but while the initial patent was in 1933 it appears that in 1847 Alexander Mitchell and his son, John Mitchell, applied to have the patent extended by another 14 years as they initially had not been able to take advantage of the patent. They were successful.(page 115 to 122) That document also mentions a benefit of screw piles over more solid foundations in that the waves went through the piles and there was very little spray up onto the lighthouse. -- Marc Kupper| talk 04:32, 12 March 2016 (UTC)