Complex sentence: Among the company's products was the' Pony Mécanique', developed by the Napier motor company and improved in design by Oliver Danson North a three-wheeled articulated tractor unit fitted with automatic coupling gear to enable rapid change of trailers.
Split into simpler sentences: Among the company's products was the' Pony Mécanique', developed by the Napier motor company and improved in design by Oliver Danson North. It was a three-wheeled articulated tractor unit fitted with automatic coupling gear to enable rapid change of trailers.