The ‘Grand Junction 90’ Cornish Beam Engine

Price £6.00 plus P&P

This is a model of an unusual subject, of the world’s largest working beam engine. It was originally built in Cornwall in 1846 and assembled at what was the Grand Junction Waterworks at Kew, West London, one of the four engines there which served to pump London’s water. The Water Works has become Kew Bridge Steam Museum, and this engine has been lovingly restored to working order.

The model shows part of two sides of the interior of the engine hall, with the main visible parts of the engine. Using entirely paper shafts and linkages, the beam and shafts move.

Roland Wagener from Germany is an enthusiast of Cornish Beam Engines.
His web pages contain some superb graphics, together with many links to sites of great interest devoted to beam engines, both from the UK and from around the world.

....and this is the beam itself. 39 feet in length, weighing 32 tons

Base size : 26 x 8cm

Scale 1:60

120 component parts

six full colour A4 pages

The engine is a vast cast iron monster, housed in its own three storey building. The beam is 12 metres in length, weighing 35 tons. This engine is known as the ‘90’, as the diameter of the cylinder is a huge 90”.Though intended never to be seen by other than a handful of engineers, those Victorian engine builders couldn’t resist covering the whole thing with rich architectural detail. The real engine can be seen at