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Maxwell Hemmens mill engine steam plant - stock code 9739

A Maxwell Hemmens steam plant; it's come to us as part of a single owner collection of Hemmens models, unsteamed and in as-new condition there's some video of it running on air here.

The plant comprises a gas-fired vertical boiler providing steam for a horizontal mill engine fitted with displacement lubricator and a boiler feed pump fed from the water tank. The engine exhausts into an oil separator - which drains to a waste oil tank - and thence to the chimney.

A dynamo is belt driven from the engine flywheel, producing power for the engine room lamp.

Complete with manufacturer's documentation including original hydraulic test certificate and operating instructions.

length/inches 14
width/inches 14
height/inches 13
weight/kg 8
cylinder material gunmetal
lubricator type displacement
boiler number B158
year built 1998
CE mark n/a pre-2002
working pressure/psi 80
boiler type vertical gas-fired
boiler material copper
boiler construction silver soldered
safety valve(s) 1
safety valve type spring
mechanical pump 1