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 proposal document for low rating front road springs.
| Identifier | ExFiles\Box 106\1\ scan0311 | |
| Date | 5th May 1931 | |
| RR 755 (10H) (8459. 24-10-30) 6/3185. X5410 COMPLETED 4.12.31. STANDARDISATION of CHASSIS PARTS. Date 5.5.31. Description of Parts. LOW RATING FRONT ROAD SPRINGS. Origin. To improve riding comfort. Experimental Test Report. These springs have 4.5" initial camber, loaded camber .5" positive. They have run 35 hours on the Bump test without failure. There is a slight tendency to take a permanent set. Road Test Report. Run 2,000 miles on 18-GIV. Tried by Sales and commented upon favourably. Further tests will be run in France before these springs are put on production. BOX (Right side): X No. 5410 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. £ none Signature from Cost Dept. that above is correct. GKW 18/11/31 G20/11/31 Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... TABLE (Bottom section): INITIAL, DATE, REMARKS SG.{Arthur F. Sidgreaves - MD}, 28-11-31, Agreed Sg.{Arthur F. Sidgreaves - MD} See Sg{Arthur F. Sidgreaves - MD}21/E25.11.31 R.{Sir Henry Royce}, 18.5.31., Agreed FHR. - Flexible Springs permit a top heavy car to roll which spoils its straight running qualities, so keep down the C. of G.{Mr Griffiths - Chief Accountant / Mr Gnapp} and with ample damping we shall give satisfaction. FHR. WOR.{Arthur Wormald - General Works Manager}, 4.6.31., But pleased that further tests will take place. Wor.{Arthur Wormald - General Works Manager} C., 14.5.31., Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge}, 4.6.31., These springs appear to be overstressed and their reliability doubtful. Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design}, 21.5.31., Agreed Da.{Bernard Day - Chassis Design}- If stress is too high it can undoubtedly be reduced by increasing the number of plates and rearranging the thicknesses. BY.{R.W. Bailey - Chief Engineer}, 14.5.31., Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer}, 15.5.31., Agreed - in view of 10,000 miles test. Must have test before and after 10,000 miles test. EB. E.{Mr Elliott - Chief Engineer}, 14.5.31., Agreed AE. PN.{Mr Northey}, 18.5.31., Agreed, but am hoping we can arrange more damping. PN.{Mr Northey} Hs.{Lord Ernest Hives - Chair}, , Agreed Hs.{Lord Ernest Hives - Chair} | ||