If you are a tinkerer, hobbyist, engineer, eco-warrior, steampunk, or Fred Dibnah then this book is a fantastic reference of some basic and not-so-basic mechanical contrivances from the industrial revolution, compiled and annotated seemingly by Raffles & Bunny from the pages of Viz. I enjoyed little digs next to some illustrations such as "French version" or "Improvement of Foreign design".
Very useful if you're making any sort of machinery and suffer from "Engineers block". Eco-warriors or those living the Good Life will find an invaluable collection of water wheels, fruit presses, mills, pumps, etc.
Also 1800 Mechanical Movements, Devices and Appliances (Dover Science Books)
is a slightly later, much-expanded version which contains a lot more, including furnaces & steam engines and even gasoline engines and electricity generators.
For the real anoraks out there, you can even spot some early mentions of engineering icons such as the original Mr Otis's patented safety elevator mechanism.