From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Modifications and manufacturing suggestions for an exhaust pipe fitting, flange, and cutout box.
| Identifier | WestWitteringFiles\D\May1920\ Scan9 | |
| Date | 1st May 1920 | |
| TO BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} -3- R8/G15/5/20 Contd. because the fitting could quite well even be made by hand in the sheet metal working shop, until punches and pressing dies are procurable. If it was thought that this should be made out Sankeys' or Rubery Owen would easily make them for us. If there is any difficulty of bending up the edge, a system of strengthening pieces (suggested) could be used, in fact I strongly recommend that we do not attempt bending up the edge, but weld the strengthening pieces in at once. It appears to me that to reinforce the two halves, a number of pins or short pieces of tube could be passed through and welded at each side. It was also suggested to reinforce the attachment to the exhaust pipe by spot welding if it was found necessary. My impression is that it could be made quite sound out of 2" diameter pipe by simply making a butt weld. Something should be adopted of this type straight away, as there would be no very great disaster if we had an occasional failure, whereas to fit the heavy steel castings would certainly lead to frequent breaking off of the exhaust pipe which is a much more serious risk. The cut-out flange was arranged to be a simple drop forging of a rather different form, requiring the minimum machining butting the exhaust pipe and welded all round the outside. If the cutout box itself could be altered, this too, might be in sheet steel pressing instead of forging, but time does not permit of this. R.{Sir Henry Royce} Will BY.{R.W. Bailey - Chief Engineer} advise America of these modifications at once, they may be of considerable help to them. | ||