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).
Suggestion to use a smaller cutter for milling oil grooves in ball pads to reduce rejects.
| Identifier | ExFiles\Box 142\3\ scan0005 | |
| Date | 13th November 1936 | |
| To Rm.{William Robotham - Chief Engineer} from Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems} Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}8/AP.13.11.36. Re the suggestion by C.E.Wheldon, Check No.2008 in the Boys' Mill Inspection. I saw Mr.Wheldon and discussed his suggestion to use a smaller cutter when milling out the oil grooves in the ball pads so that the cut does not run out at the edge of the pad and allow the oil to escape. I checked up the drawings and find that the existing cutter is not too large to work to the drawing and leave a .075" from where the cutter runs out to the end of the pad. The complaints of leaking pads were on those not made to the drawing. The drawing office had not suggested a smaller cutter because the works then complain that it is then only possible to use very small spindles with consequent breakages. If it is possible to use the smaller cutter and still work to the drawing, as they are now doing, his suggestion should reduce the number of rejects. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems} | ||