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 a modification to the machining of the Rear Axle Thrust housing to make quieter rear axles.
| Identifier | ExFiles\Box 49\2\ Scan115 | |
| Date | 11th August 1922 | |
| R.R. 765 (5 H) (S.J. 29), 1-10-21) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 5087 COMPLETED 22.8.22 STANDARDISATION of CHASSIS PARTS. Description of Parts. Modification to machining of Rear Axle Thrust housing. Origin. To assist in producing quiet rear axles. Experimental Test Report. This modification only alters the machining slightly. Our axle quietening Dept. have reported that this modification is an assistance to them. Road Test Report. Run 500 miles in England. Has been adopted as standard on 40/50 H.P. cars made at Springfield, for four or five months. Date 11.8.22 X No. 4150 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....... £....... Storekeeper advised re above: Storekeeper's Signature Signature of Exp. Dept. that above is correct. E Hives. Weight of Old Part. Cost of Old Part. £ Weight of New Part. Cost of New Part. £ Difference per Car. £0.1.0 Difference per Car. increased cost of machining. Signature of Mr. De LOOSE that above is correct. Hy{Tom Haldenby - Plant Engineer}/JW 19.8.22 SIGNATURES | DATE | REMARKS Mr. JOHNSON | 18.8.22 | Try 20 CJ. Mr. S. Johnson | 21.8.22 | " BJ. Mr. ROYCE | 18.8.22 | Agreed. FHR! Mr. WORMALD | 14.8.22 | I should like to see 20 axles tried - it might help us considerably. RWP. Mr. ROWLEDGE | 14.8.22 | Agreed. Rg.{Mr Rowledge} Mr. DAY | 14.8.22 | Agreed. Da.{Bernard Day - Chassis Design} Mr. BAILEY | 12.8.22 | Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. PLATFORD | 16.8.22 | Agreed - can confirm is of great advantage at Springfield. EP.{G. Eric Platford - Chief Quality Engineer} Mr. NORTHEY, Inc. | 14.8.22 | Agreed. FN. | ||