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 a camshaft modification to increase power.
| Identifier | ExFiles\Box 172\1\ img044 | |
| Date | 4th October 1923 | |
| R.R. 755 (10M) (SL 72 18-7-23) MP 274954a. COMPLETED 6.11.23. STANDARDISATION of CHASSIS PARTS. Date 4.10.23. X No. 4229 Drawing No. Part List Description of Parts. CAMSHAFT. Origin: To increase power. Experimental Test Report. This modification consists of altering the angle between the cams from 118° to 110° - the same cam form is used. Road Test Report. See report Hs{Lord Ernest Hives - Chair}4/LG3.10.23 Fitted to 4-G-11 - run 1000 miles. Fitted to 3-G-11 - run 1750 miles. Fitted to 6-G-11 - run 50 miles. This Camshaft gives a definite improvement. Weight of Old Part. £ Weight of New Part. £ Difference per Car. Cost of Old Part. £ Cost of New Part. £ Difference per Car. £ No difference in cost. Signature of Mr. De LOOZE that above is correct. My/JW 8.10.23. SIGNATURES | DATE | REMARKS MR. JOHNSON | 30.10.23 | Agreed. CJ. MR. B. JOHNSON | 5.11.23 | Agreed. BJ. MR. ROYCE | 20/10/23 | Agreed FHR. MR. WORMALD | 4.10.23 | Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE | 10.10.23 | Agreed. Rg.{Mr Rowledge} MR. DAY | 11.10.23 | agreed sa MR. BAILEY | 4.10.23 | Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD | 4.10.23 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT | 15.10.23 | Agreed AE. MR. NORTHEY | 25.10.23 | Agreed. PN.{Mr Northey} MR. HIVES | 29.10.23 | Agreed. E.Hives. 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......... £......... Series......... £......... Series......... £......... STAMP: ORIGINAL | ||