Mann’s Patent steam cart and wagon company manufactured steam road vehicles in Leeds England was registered in 1899. 

The company was successful in 1901 Mann decided to construct a new works on Pepper Road Hunslet Leeds. The Large and modern, well-equipped works was very successful and had there hayday in periods including the First World War. 

The company’s main products were their 3 and 5 ton wagon that were produced in a whole range of variations including; Articulated 6 – Wheelers, Gully cleaning wagon, Brewers Wagon, Bus bodied wagon, Municipal dustcart, Street watering wagon, Tar spraying wagon, Tipping wagon, and many more.

In addition the company produced a range of tractors both road and agricultural use. 

Another popular product for municipal use was their lightweight patching roller, used for road repair. In 1924 the company introduced their superb Mann Express wagon, with shaft drive, high-speed engine and fully enclosed cab. Unfortunately, this wagon was not a commercial success and by 1926 Mann's Patent Steam Cart and Wagon Company was in trouble. Despite attempts to provide additional finance, it was not possible to save the company, and in 1929 the works closed completely