[wyvern]

Know of many of those - most are in Wikipedia.

Brunton's Mechanical Traveller was intended for very steep inclines such as from Bullbridge to a quarry in Crich the hope being to eliminate the complexity of cable haulage as the working face moved. It was actually quite successful until a driver overloaded its boiler up in Newcastle and it exploded. It was never carried on but its descendants can e seen today in the form of walking draglines.

The Fell diesel was a regular sight on the Midland main line and was also pretty successful. It was intended to reduce weight compared to diesel-electrics (hauling through-braked stock) and be more efficient than diesel-hydraulic. Its downfall was that it was too complex to economically maintain.

The LNER loco at the beginning was I believe their Beyer-Garratt. The LMS built some (with Derby axle boxes) and there are many still working all over the world (in fact I think one of our members used to drive them for Rhodesian Railways)