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Cyldon 13/4 stationary engine


The 13/4 is very typical of Cyldon, having similarities with most of the other models. It has the same main components as the 13/3 but laid out in an in-line configuration like the 13/2. It has a geared output like the 13/5.

The brass boiler is 1 3/4" diameter x 4 5/16" long. It is fired by a brass cylindrical three wick meths burner. It has a whistle, a safety valve and overflow plug. It has a dummy chimney. The boiler is held onto the aluminium firebox with a single brass band (this being original despite the appearance that there should be two).The copper steam pipe exits from the bottom of the boiler inside the firebox, but does not pass through the flame, so get's no superheat.

The steam is fed directly to the back of the port face of the oscillating cylinder. The brass cylinder is 5/16" bore x 3/4" stroke. It is a single acting oscillating type. The crank shaft is one of the few steel parts, with a brass disk crank at one end, and mazac flywheel in the centre. (The flywheel is the only painted part of the whole engine). At the other end of the crankshaft is a small pinion meshing with a larger gear wheel mounted on a short shaft in it's own bracket, giving a 3:1 speed reduction. The second shaft has a small pulley attached. The simple brass brackets are fixed to the long thin aluminium base plate; which has a rubber foot at each corner.

Since taking the photos on the left, I have repaired the broken whistle. The dummy chimney is a scratch made replacement.

Make Model Made Description Cylinders Cylinder Type
Cyldon 13/4 c1950s Stationary 1 single acting
Piston Diam mm Stroke mm Valve Type Boiler Type Fuel Mechanical Condition
8 19 Oscillating cylinder horizontal Meths Fair
Cosmetic Condition Paintwork Packaging Purchased Purchase cost Additional cost
Fair Original
15/6/2012 84.25