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).
Solution for an issue with a packing washer in an improved epicyclic gear assembly.
| Identifier | WestWitteringFiles\C\April1919\ Scan3 | |
| Date | 4th April 1919 | |
| To EH. from E.{Mr Elliott - Chief Engineer} copy to Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} ORIGINAL. E1/G3.4.19. April 4th. 1919. RE IMPROVED EPICYCLIC GEAR. X33Y2 In reply to your memo EHL/LG2.3.19., just received, together with blue print illustrating the point in question, it certainly does seem rather impossible to put this housing together without the packing washer dropping down. The cure for the trouble appears to be to make the inner diameter of the packing washer smaller, as shewn on the blue print, so that its clearance with the distance tube on the revolving shaft is less than the clearance between its outer diameter and the thrust washer housing bore. In no circumstances then can the washer drop down when the pieces are closed together endways. The packing washer may rub on the revolving shaft, but should be sufficiently clear so that any eccentricity of the revolving piece will not tend to fidget the washer about. Blue print attached. E.{Mr Elliott - Chief Engineer} R.R. 235A (500 T) (S.D. 408. 26-4-17.) Bm. 2/156/13. | ||