Clarkson Single Acting Vertical 12 x 12

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Jasonb

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This is my version of the old Clarkson 1/2" x 1/2" single acting vertical engine. Redrawn in metric and made with a combination of fabrications and cutting from solid rather than the castings which are still available from blackgates in the UK.

The finished parts
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And the assembled engine

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Like the little Husky which is also single acting and has the air/steam coming in and out the same hole it needs a bit more pressure than I usually run at but ticks over quite happily and also has a good turn of speed (tacho reading at the end of the video.

These little engines are quite good fun projects that can be slipped in during a longer build. They also suit smaller indoor machines for those that don't want to venture out into a cold workshop for the next 5 months. material costs are low and if you muck something up then you have not got to source a replacement casting.

 

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