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 chassis parts concerning valves to overcome exhaust failures.
| Identifier | ExFiles\Box 171\3\ img181 | |
| Date | 16th August 1923 | |
| R.R. 755 (10M) (SL 72 18-7-23) MP 274954s. COMPLETED 31.8.23 STANDARDISATION of CHASSIS PARTS. Date 16.8.23. Description of Parts. VALVES. [Stamp: ORIGINAL] Origin: To overcome exhaust valve failures. Experimental Test Report: See report Hs{Lord Ernest Hives - Chair}1/LG15.8.23. Road Test Report: All pre-war cars fitted with these valves. Our recommendation is to revert to the pre-war shape of valve and angle of seating but to retain present material. X No. 2764 Drawing No. 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. Weight of Old Part. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. Difference per Car, made in production quantities, there will be no difference in cost. Cost of Parts in Works which will be scrapped if commenced on: see memo. attd Series......... £........... Series......... £........... Signature of Mr. De LOOZE that above is correct. MV/JW 23.8.23 SIGNATURES DATE REMARKS MR. JOHNSON MR. B. JOHNSON 30.8.23 Agreed. BJ. No scrap - see Hs{Lord Ernest Hives - Chair}1/LG31.8.23. MR. ROYCE 24/8/23 Agreed FHR. Valve heads should be modified & agree & recent improved standard material is satisfactory. R.{Sir Henry Royce} MR. WORMALD 16.8.23 Agreed. Wor.{Arthur Wormald - General Works Manager} Head only slightly larger than seat. Less sharp edge to valve. K.{Mr Kilner} MR. ROWLEDGE 20.8.23 Agreed. Rg.{Mr Rowledge} MR. DAY 18.8.23 Agreed A.D. MR. BAILEY 16.8.23 Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD 16.8.23 Agreed - note hm.{Capt. W. Hallam - Head Repairs} point re. allowance for truing up and regrinding. EP.{G. Eric Platford - Chief Quality Engineer} MR. ELLIOTT 27/8/23 Agreed AE MR. NORTHEY 20.8.23. Agreed - but am not aware of any cases of failures arising from this. PN.{Mr Northey} MR. HIVES 29.8.23 Agreed. E.Hives. [Large diagonal stamp: CHASSIS] | ||