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Machine a curer les ports 1750 by guraus (Alexandru) - 1/36 - Finished


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1 hour ago, amateur said:

Now I start wondering: how did this machine actually work?

I though it was somethink like the modern machines, with a number of scoops mounted on some kind of belt, but that wouldn fit on these large wheels, so.... could you explain?

 

Jan

The scoop was man-powered.  People got inside the wheels (bit like mad hamsters) and spun em round to get the scoop to raise and lower as was needed

Heghlu'meH QaQ jajvam

Slainte gu mhath

L.H.

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Jan,

 

There will be two scoops - one on each side and they work alternatively: one scoops the bottom of the sea while the other is pulled back in the start position.

 

The big wheel is used to pull the scoops towards the back of the ship via a chain and this is the move that actually does the work - thus the need for more power produced by the bigger wheel with a bigger diameter. The small wheel is used to pull the scoops back in initial position via a rope (less strain on it). The wheels are turned by man power in one direction then in opposite direction.

 

The full scoop is raised above the water and a small boat goes under it and its content is discharged through a lid on the back side of the scoop which is released by a piece of rope acting on a lock mechanism. Once empty the lid is closed and locked in position and the boat moves so the now empty scoop can start its reverse move by turning both wheels in reverse direction.

 

It probably was a time consuming process but it also was the most efficient way to keep the ports clean for more than 250 years.

 

There were 4 anchors dropped from each corner at some distance and these allowed to boat to advance after each pair of scoops - this produced two long cleaned trenches  on the bottom. Then the boat was moved sideways by a couple of feeds (the width of the scoop) and to the process started again to do another pair of trenches next to the previous ones.

 

Probably the best way to understand the process is the picture from G. Delacroix's monographs below (hope he won't mind).

 

Alexandru

 

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For all my builds please visit my site at: http://www.AlexShipModels.com

 

Previous builds

 

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  • 1 month later...

Hello all,

 

Had to wait quite a while for 0.6mm drill bits from China as I broke all I had. Got them last week and one of the "scoops" is now ready and installed on the model. Second one is also at drilling stage.

 

Alexandru

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For all my builds please visit my site at: http://www.AlexShipModels.com

 

Previous builds

 

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  • 2 weeks later...

 

 

Thank you all for your kind words.

 

Here is another progress report - I've made the small boat used to transport the dirt scooped from the bottom of the port.

 

Alexandru

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Edited by guraus
Order of pictures messed up

For all my builds please visit my site at: http://www.AlexShipModels.com

 

Previous builds

 

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Absolutely stunning work.

Mark
"The shipwright is slow, but the wood is patient." - me

Current Build:                                                                                             
Past Builds:
 La Belle Poule 1765 - French Frigate from ANCRE plans - ON HOLD           Triton Cross-Section   

 NRG Hallf Hull Planking Kit                                                                            HMS Sphinx 1775 - Vanguard Models - 1:64               

 

Non-Ship Model:                                                                                         On hold, maybe forever:           

CH-53 Sikorsky - 1:48 - Revell - Completed                                                   Licorne - 1755 from Hahn Plans (Scratch) Version 2.0 (Abandoned)         

         

                                                                                                                                                                                                                                                                                                

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Thank you all for your interest!

 

If you want to see more pictures on the finished model I have them on my personal web site here: http://www.alexshipmodels.com/2017/10/15/machine-a-curer-les-ports-gallery/

 

For now I haven't decided on the next project but I am thinking about the schooner "La Jacinthe" based on Ancre monography. But before starting that one I will probably make some small changes/additions to the models I already built - I usually do that  in between big projects. Like adding the pins on my Victory pinrails or finishing the base for a case I have for my Japanese Fune model.

 

But if I start something new I will definitely post the build on this site.

 

Regards,

Alexandru

For all my builds please visit my site at: http://www.AlexShipModels.com

 

Previous builds

 

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Druxey,

 

I would definitely consider that - I think it's a great idea in fact!

I will look to see what can I find.

 

Thank you,

 

Alexandru

 

For all my builds please visit my site at: http://www.AlexShipModels.com

 

Previous builds

 

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Great work Alexandru; your metalsmithing in particular is very good.  An interesting and unusual subject to model.

 

cheers

 

Pat

If at first you do not suceed, try, and then try again!
Current build: HMCSS Victoria (Scratch)

Next build: HMAS Vampire (3D printed resin, scratch 1:350)

Built:          Battle Station (Scratch) and HM Bark Endeavour 1768 (kit 1:64)

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  • 4 years later...

Beautiful work!

Jim 

Current Build: HMS Winchelsea, Model Shipways Mayflower 

Completed Builds: NRG Half Hull Project  

                                   Model Shipways 18th Century Armed Longboat

                                   Dumas 1954 Chris Craft 36' Commander

                                   Dumas 1940 Chris Craft 19' Barrel Back

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