Standardisation of chassis parts, specifically the Zenith Filter.
| Identifier | ExFiles\Box 44\1\ Scan201 | |
| Date | 23th March 1928 | |
| RR 755 REVISED (10H) (DE649 9-12-26) BM. 2/1187. X3700 COMPLETED 18.5.28 STANDARDISATION of CHASSIS PARTS. Date 23.3.28 Description of Parts. ZENITH FILTER. Origin. To prevent jets becoming choked with sand, fluff etc. Experimental Test Report. Fitted to 15-EX and ran 10,000 miles in France. Road Test Report. Run 10,000 miles in France. The filter collected quite a lot of sand which would otherwise have gone through to the carburetter. It saves wear of jets, pistons etc. and eliminates the possibility of choked jets. There was no trouble during the tests. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 2-15-2 Cost of New Part. £ 2-16-4 Difference per Car. £ 0- 1-2 Increase Signature from Cost Dept. that above is correct. GRL 1/5/28 X No. 3700 Drawing No. F.77991 Part List(s) 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.....£...... INITIAL | DATE | REMARKS BJ. | 18.5.28 | agreed R. {Sir Henry Royce} | 26.3.28 | Agreed. FHR. WOR. {Arthur Wormald - General Works Manager} | 24.3.28 | Agreed. Wor. {Arthur Wormald - General Works Manager} RG. {Mr Rowledge} | 26.3.28 | Agreed. RG. {Mr Rowledge} DA. {Bernard Day - Chassis Design} | 26.3.28 | Agreed. DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} | 26.3.28 | Agreed. BY. {R.W. Bailey - Chief Engineer} EP. {G. Eric Platford - Chief Quality Engineer} | 24.3.28 | Agreed. EP. {G. Eric Platford - Chief Quality Engineer} E. {Mr Elliott - Chief Engineer} | 28.3.28 | Agreed. E. {Mr Elliott - Chief Engineer} Existing filter features on float chamber should be cut off. PN. {Mr Northey} | | CWB. | 4.4.28 | Agreed. CWB. This filter does not, apparently, keep back water. Hs. {Lord Ernest Hives - Chair} | 23.3.28 | Agreed. Hs. {Lord Ernest Hives - Chair} [Handwritten in left margin: As] [Stamp across centre: PHOTO] | ||
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).