The People of the Ruins

This is a post-apocalyptic novel that revolves around Jeremy Tuft. Jeremy is an ex-artillery officer and physics educator. During a worker protest in 1924, he was stuck in a London laboratory. He awakens 150 years later in a neo-medieval society whose inhabitants have forgotten how to forge or operate machinery. Though initially disturbed by the failings of his own era's smug Advancement doctrine, Tuft eventually concludes that post-civilized life is convenient and more peaceful. That is until northern English and Welsh tribes threaten London, at which point he begins developing new weapons of mass destruction. Did Jeremy Tuft succeed in making the weapon of mass destruction? Is he able to awaken the inhabitants' interest in re-learning how to operate machinery?