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 North & Sons, Ltd. regarding the lubrication and bearing type for Watford magnetos.
| Identifier | ExFiles\Box 65\3\ scan0237 | |
| Date | 28th March 1928 | |
| X7791 SPEEDOMETERS & MAGNETOS. THE BRITISH MADE Watford NORTH & SONS, LTD. WHIPPENDELL ROAD, WATFORD. TELEPHONES: LONDON 1346 GERRARD WORKS: 622 & 623 WATFORD. TELEGRAMS: AEROMAGS WESTCENT LONDON AEROMAGS WATFORD. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE CROWN AGENTS FOR THE COLONIES. INDIA OFFICE. Governing Director: R.{Sir Henry Royce} B. North Director & Works Manager: C. H.{Arthur M. Hanbury - Head Complaints} Kirby. Secretary F.{Mr Friese} Stockwell EFC2/T. CHK/BP. 28th March 1928. Messrs Rolls-Royce Ltd., Derby. Dear Sirs, Lubrication of Watford E W 6. Magnetos. In reply to your letter of the 26th inst., we beg to say that until recently we have made all magnetos with ball bearings for the distributor spindle. The plain bearing was adopted in order to obtain quieter running after our Mr. North had discussed the question with Mr. F.{Mr Friese} H.{Arthur M. Hanbury - Head Complaints} Royce, your Chief Engineer, who considered the necessity for lubricating this bearing would not be overlooked by the men in charge of the cars. In recommending the oiling of these bearings every 500 miles we have followed the practice of makers who have always used plain bearings for their distributors and we should not care to recommend less frequent oiling. We do not think any difficulty is likely to arise through the bearings of the armature spindle also being oiled every 500 miles as the drainage is sufficient to carry off any excess of oil. Yours faithfully, FOR AND ON BEHALF OF NORTH & SONS, LTD., [Signature] DIRECTOR | ||