The Mill Engines of the last 2 centuries, in their many forms, became the universal stationary power plants during the age of steam. They drove overhead shafting to provide motive power to textile, industry, agricultural and all other types of machinery in the factories of the day and, in modified form, to raise and lower coal mine pit cages and later to generate electricity.

The mechanical works of art of Britain's industrial heyday are recaptured in the fine detail and workmanship of the York-Bolton.

Other available forms of engine including beam, traction and table top will readily mount in place of the Bolton and be serviced by the York Boiler Plant through a universal control valve manifold.

The design criteria for the York Steam Plant and Bolton Mill Engine have produced a model of aesthetic beauty. The York-Bolton is a fully working model which resists all forms of cosmetic deterioration, is completely self contained, can be steamed from cold in a few minutes, runs smoothly with long life and is overengineered for safety. It will give many lifetimes of pleasure and education to those who demand the best that British craftsmanship can produce.

The boiler is of multitude, silver soldered heavy gauge copper construction, fitted with ceramic gas burner with both main and pilot jets, electric ignition, water and steam pressure gauges, safety and vacuum valves and whistle.

Gas flow is regulated by a control valve which cuts the main burner in and out to maintain preset steam pressure.