SS Jeremiah O'Brien, Chatham - turning gear
Introduction
The photograph on this page of SS Jeremiah O'Brien, Chatham - turning gear 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
SS Jeremiah O'Brien, Chatham - turning gear
Image: © Chris Allen Taken: 11 Jun 1994
This is at the after starboard end of the main engine looking forward. This little vertical single cylinder engine is 8.5" bore x 7" stroke. It turns the main engine for adjustments to be made. This is achieved by the worm on the left engaging with the worm wheel on the crankshaft. The worm is in its disengaged storage position. When the worm is in the main engine cannot be turned other than by the turning gear engine and attempts to do so could cause damage. Therefore, marine engine rooms usually have a big 'turning gear engaged' notice that can be hung from the main engine stop valve.
Images are licensed for reuse under creativecommons.org/licenses/by-sa/2.0
Image Location
Latitude
51.402321
Longitude
0.538649