This 1/16 scale Uniflow engine was originally started by Arnold Throp in the mid 1940’s, during thelate 1920's Arnold worked for Cole Marchent & Morley in Bradford West Yorkshire which is just down the valley from where I live.
He worked on this model between other projects and in the mid 1980’s was about to start a build series in Model Engineer magazine, Peter Southworth who was his good friend was going to get the castings done and market it for Arnold.
Between them they were latterly working on the design and testing of a generator for the model to drive, this seemed to take priority over the engine being finished during late 1986/7.
Unfortunately Arnold died before it got finished, and Peter inherited it from him. Bob potter in turn inherited it from Peter, and I have just acquired it from Bob with a view to finishing it once Agnes is done. I also have all of Arnolds wood patterns and original drawings and Peters Aluminium patterns and a folder full of documentation about it and the generator.
Here is the stack of boxes I brought home from Harrogate yesterday, the one on top is the McOnie engine which also came from Bob, but all the rest are the Uniflow.
Main bedplate pattern
And coreboxes for bedplate
Lots of wood patterns
And more coreboxes
Plenty of Aluminium patterns.
It's going to take a while to work out exactly what I have here, there are lots of parts some are part machined and there is even another bedplate from an earlier version in gunmetal.
Governor parts
The con rod is a work of art.
Two flywheels, the option is for two flywheels side by side or one flywheel and a generator.
Did I mention generators.
And finally the main part of the engine complete with cylinder and heads.
This is a full size engine of a similar type.
There is one other like this one being built in the UK at the moment, Peter Southworth "reluctantly" supplied just one set of castings to a model engineer in the Midlands who had already built one of the Southworth Corliss engines and wanted to try something different, I am in touch with him but I would love to hear from anyone else who has built one of these Uniflow type engines.
Phil