Hetty Shaft - ventilating fan
Introduction
The photograph on this page of Hetty Shaft - ventilating fan by Chris Allen as part of the Geograph project.
The Geograph project started in 2005 with the aim of publishing, organising and preserving representative images for every square kilometre of Great Britain, Ireland and the Isle of Man.
There are currently over 7.5m images from over 14,400 individuals and you can help contribute to the project by visiting https://www.geograph.org.uk
Image: © Chris Allen Taken: 21 Sep 2019
This is a 12' 3" diameter Sirocco fan that could extract 178,000 cubic feet of air per minute from Ty Mawr Colliery via the Hetty Shaft. This shaft had previously been a downcast but was changed to upcast with a new fan and fan house in the 1950s. This ran until closure in 1983. Volunteers restoring the winding engine at this site have recently re-roofed the fan house and tidied up the fan drift and it was open for the Welsh equivalent of Heritage Open Days. The air from the mine entered the eye of the fan and was expelled centrifugally up an evasee chimney. I have stood in this position with working fans and it is like being in a strong wind.