TQ3680 : Nelson Dock, hydraulic slipway winch

taken 7 years ago, near to Stepney, Tower Hamlets, Great Britain

Nelson Dock, hydraulic slipway winch.
Nelson Dock, hydraulic slipway winch.
Preserved as part of the Hilton Docklands Hotel. Built by the Hydraulic Engineering Company, Chester and claimed to be of 1900 vintage. It 'feels' older. The meat of the machine is a long stroke single acting hydraulic cylinder that physically hauls the vessel up the slipway the length of its stroke. At the top of the stroke a pawl and rack arrangement stops the vessel from sliding back, the ram is retracted by a weight, the chain/links to the vessel are shortened and the cycle repeats. There is a three throw hydraulic pressure pump hidden below the main piston rod and this was driven by an external power supply (almost certainly a steam engine) by the gears on the left. The gears could also drive a winch barrel, presumably for lesser loads and a pair of dog clutches selected pump or winch barrel. I have never seen anything quite like it before and it is a marvellous survivor.
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TQ3680, 621 images   (more nearby )
Photographer
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Date Taken
Sunday, 21 August, 2011   (more nearby)
Submitted
Wednesday, 24 August, 2011
Geographical Context
Industry  Docks, Harbours 
Subject Location
OSGB36: geotagged! TQ 3654 8023 [10m precision]
WGS84: 51:30.2710N 0:2.0457W
Camera Location
OSGB36: geotagged! TQ 3654 8023
View Direction
EAST (about 90 degrees)
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Other Tags
Hilton Docklands  Hydraulic Cylinder  Hotel  Slipway 

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