| "Dickie" Stringer: Greaser. Officially he oiled and greased the machines. His other 'duties' at the bottom of the status chain often meant he spent a good deal of time on research and tea-making. |
| "Ronnie" Rigby: Fitter. Shortly after 4.00 he is thinking of hometime at 5.00. |
| Harold and his assistant often had no work to do. Where others hid or tried to 'look busy' they sat, implacable. |
| Roy and Clive: Fitter & Turner, important distinctions, particularly to Clive. |
