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History

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Needs more history. Are there any still in use? How many, how long in service, how many rivers? What did they haul? How much of the local trade did they haul? Any outside Europe? Rmhermen (talk) 16:18, 15 March 2014 (UTC)[reply]

Chain boats have been used in France, Belgium, Germany, Russia [1] and also for a short time at the RIVER ST. LAWRENCE in America [2][3]. The chain boats have been in use as steamer, as the steam engins have not as powerful and the water in the rivers was not very deep. The last chain boat on the river Elbe has been shut down in 1948. In France an electric chain ship is still sometimes used in one tunnel [4]. The chain ships only haul barges. The amount of local trade is dependent on the river. Whereas on the river Neckar [5] a very huge amount of the water carriage has been done by chain ships over a longer period of time, on the river Elbe [6], the paddle steamer have been a fierce competition for chain ships. It is possible that a second article about Chain boat navigation will be translated from german to english soon.--Salino01 (talk) 19:50, 16 March 2014 (UTC)[reply]

Request semi-protection

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Images in the article are repeatedly being replaced by images of roosters. I tried to revert the three remaining such images (the last three in the article, I believe), but could not find where in the edit history they were changed, and I also do not know which images they replaced. —  $PЯINGεrαgђ  17:17 15 March, 2014 (UTC)

I think this is now sorted and the perpetrator was banned temporarily. --Bermicourt (talk) 08:32, 16 March 2014 (UTC)[reply]

Chain ferries?

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The Torpoint Ferry on the River Tamar in England still operates on this principle, I believe. It hauls itself along a chain on the riverbed. However, it is linked to the Cable ferry article which seems to be rather different. Should it be linked to this article instead? Alansplodge (talk) 22:56, 15 March 2014 (UTC)[reply]

Chain ferries ferry people and goods across a river; chain boats haul barges up and down rivers. So I think the Torpoint Ferry is linked to the right place. Of course, chain ferries are sometimes called chain boats in the literature. --Bermicourt (talk) 08:32, 16 March 2014 (UTC)[reply]
Agreed: the difference is one goes along a river and the other goes across, the propulsion method is the same. Perhaps the Cable ferry article needs a section about chain ferries. It's interesting that the chain ferry technology seems to pre-date its use on chain boats by a couple of decades. Alansplodge (talk) 16:45, 16 March 2014 (UTC)[reply]

Redundant article, and "water turbines"

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First, there is a stub article called Chain boat navigation which says very little, all of which is already on this page, what little there is of it. It is redundant and ought to be merged or deleted, whichever. Second, I don't believe "water turbine" is the correct term for the pump-jet device described in the article. A Turbine is a device which EXTRACTS energy from a fluid, not one which adds it. A pump-jet adds power to the fluid by way of a compressor, an impeller or a propeller. If the water was being forced through the pipe to spin a turbine which generated electricity, THEN it would be a "water turbine"..45Colt 10:16, 8 January 2015 (UTC)[reply]

Thank you for your comments.
I'm expanding chain boat navigation so it will not need to be merged or deleted.
According to the German Wiki article these Wasserturbinen ("water turbines") were the predecessors of Wasserstrahlantrieb ("pump-jets"), so maybe this is an older and wider definition of the term. They are definitely not the same. Pump jets were invented in 1931; these early water turbines were being used in 1892. If you are able to reliably source a better translation then please go ahead. --Bermicourt (talk) 20:23, 8 January 2015 (UTC)[reply]
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