Saxstead Green Postmill - Tentering Beam
Introduction
The photograph on this page of Saxstead Green Postmill - Tentering Beam by Ashley Dace 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: © Ashley Dace Taken: 2 May 2011
A view of the 'modernisation'. Originally there would have been no governor but around the 1800s this technology was added to save the miller time. The governor (bottom right) was spun via a shaft connected to the shaft upstairs. This meant the governor spin reflected the speed of the mill. The centrifugal effect of the balls moved the 'iron yard' up or down and thus the tentering beam (white bar in this photo). So the small adjustments reflected the distance between the stones, maintaining the coarseness of the flour.
