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 for the deletion of petrol filters from the main petrol tank due to the adoption of the Enots filter.
| Identifier | ExFiles\Box 106\2\ scan0115 | |
| Date | 6th December 1932 | |
| RR 785 (10H) (30405, 21-4-32) BM. 3/8382/4. COMPLETED 6.1.33. X5460. STANDARDISATION of CHASSIS PARTS. Date 6.12.32. X No. 5460. Drawing No. Part List Description of Parts. DELETION OF PETROL FILTERS FROM MAIN PETROL TANK. Origin. These filters are considered unnecessary since the adoption of the Enots filter. Experimental Test Report. It is generally almost impossible to remove filters from a car fitted with the latest type of body with covered in rear portion. We have never heard of a case where the rear filters have been found stopped up with foreign matter. Road Test Report. 15,000 miles have been completed on Expl. Peregrine and J.3 cars with no petrol tank filters. No trouble has been experienced. Weight of Old Part. Cost of Old Part. £ - 13. 2. Weight of New Part. Cost of New Part. £ - 1. 0. Difference per Car. Difference per Car. £ - 12. 2d. Decrease. Cost of Parts in Works which will be scrapped if commenced on:- Series.........£....... Series.........£....... Series.........£....... Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen}3.1.33. G.4.1.33. Wor.{Arthur Wormald - General Works Manager} INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 5.1.33. | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 13.12.32. | Agreed FHR. Assuming Enot filter comes before petrol pump or autovac, if these filters (or strainers) never block they do not require cleaning, i.e. they may clean themselves after doing duty of keeping something out of the feed pipes. My own experience is that we have been remarkably free from stops on the road; by blocked pipes, cocks, valves, autovac and other fittings not protected by the real fine mesh filter of the Enots type. R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} | 7.12.32. | Agreed Wor.{Arthur Wormald - General Works Manager} C. | 7.12.32. | Agreed C. RG.{Mr Rowledge} | 7.12.32. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 9.12.32. | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 12.12.32. | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 7.12.32. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} & Mx.{John H Maddocks - Chief Proving Officer} Mx.{John H Maddocks - Chief Proving Officer} E.{Mr Elliott - Chief Engineer} | 8.12.32. | Agreed AE. PN.{Mr Northey} | 19.12.32. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||