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).
Proposal to standardize the Ferranti Ammeter as an alternative source of supply to the standard Elliott ammeter.
| Identifier | ExFiles\Box 172\3\ img123 | |
| Date | 25th June 1930 | |
| RR 785 REVISED (10M) (OG 348 19-7-28) Sh: 6/643. COMPLETED 14.7.30. ORIGINAL STANDARDISATION of CHASSIS PARTS. Date 25.6.30. No. 3498. Description of Parts. FERRANTI AMMETER. (as second string to present standard Elliott ammeter) Origin. Desirability of second British source of supply, particularly one of the high alround reputation represented by the name Ferranti. Experimental Test Report. Road Test Report. Ferranti ammeters have been on test with us since July 1928. Bench observations and tests have shewn them to contain high grade mechanism and to be uniformly accurate. Three instruments now being run on experimental cars are made to our standard finish and suited to the grouped instrument board. [Test Results] Run on 12-GIV 7,500 miles. 17-GIV 5,000 miles. 14-RX 4,000 miles. [Stamp] H.G. PANTON Weight of Old Part. - Cost of Old-Part. £ 1. 16. 6d. Elliott Ammeter. Weight of New Part. - Cost of New-Part. £ 1. 12. 0. Ferranti Ammeter. Difference per Car. Negligible. Difference per Car. The Ferranti Ameter will not supersede the Elliott but will be an alterative source of supply. G/Rb.{R. Bowen}9.7.30 [Right hand side options] 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. Cost of Parts in Works which will be scrapped if commenced on :- Series........£....... Series........£....... Series........£....... [Signature Table] Signature from Cost Dept. that above is correct G.10.7.30. Wor.{Arthur Wormald - General Works Manager} INITIAL | DATE | REMARKS EX. SG.{Arthur F. Sidgreaves - MD} | 11.7.30 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 1/7/30 | Agreed JHR WOR.{Arthur Wormald - General Works Manager} | 26.6.30 | Agreed Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 26.6.30 | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 25.6.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 27.6.30 | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 26.5.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 1.7.30 | Agreed AE. PN.{Mr Northey} | 27.6.30 | Agreed PN.{Mr Northey} CWB. | | Agreed C. HS.{Lord Ernest Hives - Chair} | | Agreed S. | ||