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 correcting engine stroke information and requesting piston head specifications.
| Identifier | ExFiles\Box 148\1\ scan0091 | |
| Date | 31th March 1939 | |
| 1256. SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST.{Capt. P. R. Strong} W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143 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 WELLWORTHY PISTON RINGS LIMITED PISTON & PISTON RING SPECIALISTS LYMINGTON HANTS WORKS & HEAD OFFICE: STANFORD RD SERVICE DEPOTS LIVERPOOL 75 PARADISE STREET 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 TELEPHONE: LYMINGTON 520 (5 LINES) TELEGRAMS: WELLWORTHY CODE: MARCONI DIRECTORS: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} H.{Arthur M. Hanbury - Head Complaints} ALEXANDER J.{Mr Johnson W.M.} W. HOWLETT C. B. KAY P. WALDEN C. W. WATERS A.{Mr Adams} J.{Mr Johnson W.M.} WOOLCOTT OUR REF LCN/AS. YOUR REF 31st March, 1939. Messrs. Rolls-Royce Ltd., Derby. Dear Sirs, For the attention of Mr. Robotham. Further to our letter of the 16th inst., in connection with the high compression piston, the design of which we wish to test out in our Leyland lorry, it will be remembered that on the 16th we enclosed a rough sketch showing details of the piston and combustion space, but believe that on the sketch the stroke of the engine was shown as 5 1/2". This information was found to be incorrect, having been taken from a book in which apparently there was a mis-print; The actual stroke is 5" - Bore 3 1/2" and the compression ratio as given us by the Designer is stated to be 5.7 : 1. As we are anxious to get on with this we wondered if you could give us the sizes of the lozenge shaped projection which you would suggest should be added on to the piston head. Awaiting your reply with interest, Yours faithfully, for WELLWORTHY PISTON RINGS LIMITED. p.p. F G Blackith M.{Mr Moon / Mr Moore} Technical Department. | ||