Middleport Pottery - Bullers ring and pyrometer
Introduction
The photograph on this page of Middleport Pottery - Bullers ring and pyrometer 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
Middleport Pottery - Bullers ring and pyrometer
Image: © Chris Allen Taken: 5 Feb 2017
This would make a good 'mystery object' photograph. The white ring is a Bullers ring. This is a precisely formulated and dimensioned unfired ceramic ring that would be placed in a bottle kiln via a port in the inner kiln. The heat causes it to shrink proportionate to the temperature and it can then be measured in the device that allows the temperature to be read off. Believe it or not these are still in use after over 100 years.
Images are licensed for reuse under creativecommons.org/licenses/by-sa/2.0
Image Location
Latitude
53.040697
Longitude
-2.209656