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).
Letter from The Packless Gland Co. Ltd. regarding the design and production of a sample bellows for a filler tube.
| Identifier | ExFiles\Box 88\5\ scan0162 | |
| Date | 5th May 1936 | |
| Telephone: SUNBURY 456 (4 LINES) Codes: BENTLEY'S, WESTERN UNION. Telegrams & Cables: PACKLESS, SUNBURY COMMON. THE PACKLESS GLAND CO., LTD. MAKERS OF THERMOFLEX Shaft Seals. Windmill Road, Sunbury, Middlesex. DIRECTORS: M.{Mr Moon / Mr Moore} PAYNE. W. A.{Mr Adams} PAYNE. W. F.{Mr Friese} F.{Mr Friese} MARTIN-HURST. WMH/GN: Your Ref: Hs{Lord Ernest Hives - Chair}/STd.2/JH: May 5th, 1936. Messrs. Rolls-Royce Limited, DERBY. GRY{Shadwell Grylls} SJD Dear Sirs, FB.2206 - Adjusting Bellows for Filler Tube. We thank you for your letter of the 1st May. Now that we know the duty for which this bellows is required it seems to us unnecessary to use a fully formed bellows in which the convolutions have been collapsed so as to obtain the maximum flexibility. We have examined the sample made by Cornercroft which you have sent to us. It appears that flexibility is here practically limited to one or at most two convolutions. We are therefore sending you to-day a sample bellows just as rolled, with a portion of the tube from which the bellows is made left on at each end. This tube is produced on a punch 2.615" diameter, and it is probable that during the rolling the parallel ends may increase in diameter by .005". If you will examine this sample and let us know whether you consider that the gauge of the material is heavy enough and whether you can accept ends approximately 2.615" i/d, we will let you know the limits to which this bore can be maintained. We hope that it will not be considered necessary to increase the gauge as we can draw on our standard tube from stock and we would like to do this if it is at all possible. | ||