| Photograph of the Tube Mill
of William Tonks & Sons
included in the 1939 and earlier catalogues, 'as enlarged and electrified'.
The draw benches were used to draw lengths of tube through the dies, frequently
with a floating mandrel inside to retain the shape of the tube as its diameter
Chains were used for the drive so that the tube pulling grips
could be hooked in to draw as soon as the work was loaded. As the hook was
disengaged at the end of each draw, there would be a loud 'clang' as the chain
dropped, making the tube shop always a noisy environment.