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).
Standardisation of lagging the exhaust pipe with asbestos to reduce heat under the scuttle.
| Identifier | ExFiles\Box 172\1\ img039 | |
| Date | 16th August 1923 | |
| R.R. 755 (10M) (SL 72 18-7-23) MP 274954e. COMPLETED 31.8.23. STANDARDISATION of CHASSIS PARTS. Date 16.8.23. Description of Parts. Exhaust Pipe lagged with asbestos. ORIGINAL Origin To reduce heat under scuttle. Experimental Test Report. We recommend we wrap the exhaust pipe under the bonnet with asbestos cord. This slightly reduces heat under scuttle - it also enables magneto drive to be engaged when R.O.1 Magneto is fitted. Road Test Report. Fitted to 6-G-11 - run 1760 miles - no trouble. Fitted to 5-G-11 - run 460 miles. Fitted to 4-G-11 - run 320 miles. Weight of Old Part. Cost of Old Part. £ 3/4d. Weight of New Part. Cost of New Part. £ 4/7d. Difference per Car. Difference per Car. £ 1/3. increase. Signature of Mr. DE LOOZE that above is correct. My/JW 23.8.23. Drawing No. X No. 4238 Part List A Scrap and replace at all costs, including Chassis already delivered to customers. B Scrap and replace on Chassis in works. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock Alteration effective on future Chassis. Cost of Parts in Works which will be scrapped if commenced on :- Series.........£ Nil Series.........£...... Series.........£...... SIGNATURES | DATE | REMARKS MR. JOHNSON MR. B. JOHNSON | 30.8.23 | Agreed. BJ. MR. ROYCE | 24/8/23 | Agreed. FHR. If carefully watched to see if it requires a more finished scheme & to prevent untidy loose draughts. MR. WORMALD | 17.8.23 | Agreed. Wor.{Arthur Wormald - General Works Manager} comely un-draughted. MR. ROWLEDGE | 20.8.23 | Agreed. Rg.{Mr Rowledge} MR. DAY | 17.8.23 | agreed Da{Bernard Day - Chassis Design} MR. BAILEY | 17.8.23 | Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 21.8.23 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 27/8/23 | Agreed AE. then sheet steel covering could be clipped on if necessary on the lagging. MR. NORTHEY | 20.8.23 | Agreed. PN.{Mr Northey} MR. HIVES | 29.8.23 | Agreed. E.Hives. | ||