This bike is known to me only through this single line drawing in author Tom Cuthbertson's 1980 'Better Bikes!' AFAIK only a single prototype was built by the Hub and Axle Bicycle Company and I can't find any internet tracks it might have left.
Cuthbertson said it was light, stiff, rode and handled well and folded 'almost as small as the Bickerton', the folding bike benchmark in 1980.
Those tension cables look like slicers and dicers in any sort of unintended get off.