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Bassett-Lowke Donkey engine

c 1900?

This is a nice smallish general purpose donkey engine. Model number and date are unknown, but I guess it was made around the turn of the century (c1900).

The boiler is brass, 68mm diameter x about 64mm high, with a single flue tube. It is fitted with a safety valve and regulator and a water level try cock at about the mid level. It doesn't have a whistle, although an otherwise similar example I have seen does have one. Maybe it was an option. The burner is missing but I guess it was a meths type. There is no base plate under the firebox and there doesn't appear to be any fixings for one.

Steam is fed from the regulator to the port face of a single acting oscillating cylinder, mounted on the side of the firebox casting. The cylinder is approx 10mm bore x 25mm stroke. Exhaust steam exits directly to atmosphere from the back of the port face.

The piston is connected to a disk crank; the piston/connecting rod having a rather decorative big end. The crankshaft passes through two bearing holes in the casting to a 68mm diameter spoked flywheel and a 17mm pulley.

The engine appears to be in good condition for it's age and works well on compressed air. I haven't yet tested it on steam. It has plenty of patina but little wear.

Make Bassett-Lowke
Model ?
Date Made c 1900?
Description Donkey engine
Cylinders 1
Cylinder Type Single acting
Bore mm 10
Stroke mm 25
Valve Type Oscillating cylinder
Boiler Type Vertical with single flue
Boiler Diam mm 68
Boiler length/height mm 64
Fuel Meths?
Mechanical Condition Good
Cosmetic Condition Fair
Paintwork Original
Purchased 28/June 2020
Purchase cost 160
Additional spend