Winding Engine House To Lyle'S Shaft At Sw 688 401

The winding engine house, also known as a "whim," was built in 1880 for the Wheal Basset Mine and is now derelict. It served a former tin mine shaft and is constructed from uncoursed rubble with granite quoins and a bob wall made of granite blocks. The building features brick arches over its openings and is currently roofless. It has a rectangular plan oriented on an east-west axis, with the bob wall located to the east. The structure has three stages and includes round-headed openings, such as a driver's window in the bob wall and one window in each stage of the rear wall.

Historically, this engine house was erected when Wheal Basset Mine took over the southern half of the former North Basset Mine. It also operated by winding from Grace's shaft to the west using ropes along the ground. The engine house ceased functioning as a winder in 1889 but continued to be used for driving a capstan. It is functionally related to the pump house located to the east and is visually grouped with the West Basset stamps to the north.