Tom Senior Simplex

Hello,

Was wondering if we had anyone who knows a bit about Tom Senior engines.

I've bought what I think maybe a Simplex. Can anyone tell me if the design changed over the years? Mine has a slightly different head and what looks to be larger less clumsy looking flywheels, there also seems to be a version without the atmospheric inlet valve.

I'll get some photos sorted in a bit.

Any suggestions are gratefully received.

Thanks in advance

Cheers, Steve

 

My idea of a Tom Senior Simplex.



The version I've seen.

Screenshot_20190728_192223 by Stephen Williams, on Flickr

It might not even be a Tom Senior?

Thanks in advance,

Cheers, Steve

 

Sorted, the burgundy is 1/16hp and the red 1/10hp.