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The Paplewick Engines (4)

By spikemoz
These final shots are of some of the detail parts of the engines and monitoring systems at the Papplewick Pumping Station near Nottingham.

I find this shot taken from the top floor gives a good impression of how big these engines are. The lady is stood on the Engine House floor looking down at the secondary water pump in the basement. The connecting rod and crank can be seen just to the left of the parallel link motion.

V2 & V3
The big end and crank, note the mechanical lubricator mounted on the connecting rod, with an eccentric drive from the crank pin and the metal oil catch tray. If the engine stops with the crank at top or bottom dead centre, the single cylinder cannot provide enough torque to turn the engine. So there is a plate with a series of square holes in it bolted to the Engine House wall behind the flywheel, in which a long pinch bar was inserted and pushed by the driver against the flywheel spokes. This turned the engine until the crank was beyond dead centre and there was sufficent torque for the engine to turn by itself.

V4 & V5
This is the engine driver's seat where he kept his records up to date and kept an eye on the engines. Note the oil lamp above the seat. The gauges from left to right monitor condenser vacuum, water delivery pressure and main steam pipe pressure.

V6 & V7
The air chamber in the water delivery pipe, which damps out any pumping shocks in the water. The amount of water being delivered against time was monitored by this Kent water meter, which had a paper roll similar to a barograph, as well as conventional meter dials.


Tags: General Architecture Flash and lighting

Voters: gary_d, imagio, Rogerex and 10 more

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gary_d 13 576 13 Wales
3 Apr 2009 12:13AM
A great series again, I like the POV in V1. - gary
imagio 14 12 1 England
3 Apr 2009 12:25AM
Interesting series Again Spike

Rogerex 14 32 12 Australia
3 Apr 2009 3:26AM
It has been a fascinating series, thank you for sharing them. This weekend the Australian National Vintage Machinery Rally is being held in our state, so I hope to get there. It is mostly agricultural, but there are other things too, though nothing on the scale of these which you have shown.
3 Apr 2009 5:58AM
Another great set of shots.
3 Apr 2009 8:28AM
As a model engineer I try to imagine the size of the machinery used to produce some of components in these shots Spike. Also the precision that was achieved was incredible. This has been a fascinating series.
GlynnisFrith 14 23 3 United Kingdom
3 Apr 2009 2:40PM
It's been a great tour around the wonderful pumping station & I think you deserve a thanks for all the work you have put in to give such write up about the different parts of the building & workings

spikemoz 14 2
4 Apr 2009 1:16AM
Thanks for the votes and comments, much appreciated.


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