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).
Interview with a Gleason gear expert, issues with body work, and general manufacturing points.
| Identifier | ExFiles\Box 49\1\ Scan240 | |
| Date | 11th November 1920 | |
| X.3612 Contd. -6- Extract. EP{G. Eric Platford - Chief Quality Engineer}6/F11.11.20. X.3614. Re American Visit (15) GLEASON GEARS. X.3612. X.4150. An interview with the Gleason gear expert took place whilst I was in America, a full report of which I have no doubt will be forwarded to Derby by Mr. Olley. A point which the Gleason gear expert brought forward, however, was his anxiety that the gears should be fixed without excessive slack, and that good bedding on the face of the teeth, especially on the pitch line, should be obtained, this being the only means by which a gear would maintain its quietness when running. His experience has been that several makers had fixed up the axle so that the gears did not bed correctly, and although quiet to commence with, the quietness was not maintained after the teeth had worn. We were able to show them that the correct bedding of teeth had always been our practice. The Gleason people also appear to appreciate the difficulty of obtaining quietness on the over-run, and think that a thrust bearing for the over-run might be used to advantage. (I note standardisation sheet now going thorough for this). (16) BODY WORK? X.3719. The body supplied by Barkers for the Trails Car was very bad as regards booming, and although steps have been taken by them to overcome this by fixing packings, etc. to the roof, it was still bad in this respect. I was very much upset about this as I feel that for a sample Trials Car such a conditions of affairs may cause customers to have a very poor impression. I have already brought this point to the attention of .L.H.S. (17) GENERAL POINTS. They now appear to have obtained all the jigs and tools, and the machine shop is practically in full working condition. They did not seem to have any special machine tools other than those we have got here, about which I have already spoken to Mr. Wormald. Mr. Bagnall, however, was very keen that I should bring to Mr. Wormald's attention the Craftsman No.2. Rotary Miller which he found was a very useful machine. Contd. | ||