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 Wellworthy Piston Rings discussing a material specification issue for bearing production.
| Identifier | ExFiles\Box 115\5\ scan0120 | |
| Date | 20th September 1938 | |
| 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE: WATERLOO 5762/3 17 GT. PORTLAND ST.{Capt. P. R. Strong} W.1 TELEPHONE: MUSEUM 2433 115 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 743 SUFFOLK STREET TELEPHONE: MIDLAND 0638 MANCHESTER 232 DEANSGATE TELEPHONE: BLACKFRIARS 5914 NEWCASTLE MILLICAN'S BUILDINGS, MARKET ST TELEPHONE: 23874 ON ADMIRALTY, WAR OFFICE AIR MINISTRY, INDIA OFFICE LISTS SERVICE DEPOTS LIVERPOOL 45 RENSHAW ST.{Capt. P. R. Strong} TELEPHONE: ROYAL 5786 LEEDS 82 WOODHOUSE LANE TELEPHONE: 25774 CROYDON 246 HIGH STREET TELEPHONE: 6121-2 SOUTHAMPTON 17 PORTSWOOD ROAD TELEPHONE: 74778 HULL 285 ANLABY ROAD TELEPHONE: 15312 CANTERBURY 21 & 22 ROSE LANE TELEPHONE: CANTERBURY 2456 WELLWORTHY PISTON RINGS LIMITED PISTON & PISTON RING SPECIALISTS LYMINGTON HANTS WORKS & HEAD OFFICE: STANFORD RD DIRECTORS: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} W. ALEXANDER J.{Mr Johnson W.M.} W. HOWLETT C. B. KAY P. WALDEN TELEPHONE: LYMINGTON 520 (5 LINES) TELEGRAMS: WELLWORTHY CODE: MARCONI OUR REF FB/EHF. YOUR REF 20th September, 1938. Messrs. Rolls Royce Ltd., Derby. Dear Sirs, Attention of Mr. Robotham. Further to Mr. Howlett's letter of the 15th September in reply to yours of the 14th, Ref. Rm{William Robotham - Chief Engineer}/S/R, we have today had a visit from Mr. Richards of High Duty Alloys in connection with the analysis of AC.9 material, which proved that the Copper content was low, we enclose herewith copy of the letter sent him today, confirming our discussion. It would appear from this conversation today that it has been the practice of your people to add approximately 1½ ozs. of magnesium to each 100 lb melt to make up for losses in casting. It seems a pity that this information was not made known to High Duty Alloys and ourselves at a very much earlier stage of our development of this bearing material, as we have been seriously set back on delivery of bearings to many potential users, apart from the fact that we have had to scrap several lots of bearings owing to their being outside the specification. Perhaps you will be able to confirm the point which we have learned from Mr. Richards today that we are in order in adding approximately 1½ ozs. to each 100 lb melt to cover the magnesium loss. Yours faithfully, For WELLWORTHY PISTON RINGS LTD., F.{Mr Friese} Blackith Technical Manager. | ||