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).
Design of an anti-rattle dynamo drive, including an alternative spring arrangement.
| Identifier | ExFiles\Box 180\M3\M3.5\ img009 | |
| Date | 1st April 1925 | |
| Handwritten top: ORIGINAL, H.14, KA TO BY.{R.W. Bailey - Chief Engineer} FROM E.{Mr Elliott - Chief Engineer} S E C R E T. E1/M1.4.25. Copy to --CL.-- HS.{Lord Ernest Hives - Chair} E.{Mr Elliott - Chief Engineer} A.{Mr Adams} C. ANTI RATTLE DYNAMO DRIVE. V8100 We send you herewith drawing LeC. 2042. dealing with the above. The damping friction surface as shewn is requested by Mr. Royce but as regards the springing we cannot get a sufficiently large and heavy spring incorporated in the manner he desires, namely, by boring out the drive shaft to a larger dia. up to the Woodruff key, and putting the spring in the bore. The spring has to pass over the tapered end of the central shaft. We have therefore put the spring in in the manner shewn, by cutting the rear end of the shaft short and extending the ball bearing nut to form the oil retainer. We wrote to HS.{Lord Ernest Hives - Chair} asking for his views on what strength of spring was necessary to overcome the fabric coupling. In the meantime we shew 2 springs on this drawing - one of 60 lbs. and the other of 80 lbs load. We think this drive ought to be tried experimentally. We are sending a blue print to Mr. Royce for his comments. E.{Mr Elliott - Chief Engineer} Handwritten bottom: a good example of the tripartite arrangement [Triangle Diagram with points labelled: Top: E - (WW) Des, Bottom Left: R LeC, Bottom Right: HS{Lord Ernest Hives - Chair} By Works] | ||