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 test report for a spring-loaded cross steering tube to improve 20 HP steering.
| Identifier | ExFiles\Box 5\3\ 03-page248 | |
| Date | 7th January 1927 | |
| STANDARDISATION of CHASSIS PARTS. Handwritten Top Center: X5425 completed 20.1.27 Description of Parts: SPRING LOADED CROSS STEERING TUBE+ Origin: To improve 20 HP. steering. Box Right: No. 5425 Drawing No. SCH No. 2201 Part List [X] A Scrap and replace on all cars, including Chassis already delivered to Customers. [ ] B Scrap and replace on Chassis at Works. [ ] C Scrap present and replace on Chassis not yet handed to test. [ ] D Use existing stock Alteration effective on future Chassis. Experimental Test Report: This modification consists of putting a spring load of 800 lbs. on the cross steering tube ball ends. A 10,000 miles test on 12-EX shews that unit loads such as these, do not cause excessive wear on the ball and pad. Road Test Report: Run 2000 miles on 10-G-111 and 11-G-111. This eliminates the necessity for friction in the pivots as it cures low speed wobbles. Also reduces road shocks and joggles. Main dimensions of the tube unaltered. Bump and road tests however proceeding. Weight of Old Part: Weight of New Part: Difference per Car: £ Cost of Old Part: £ Cost of New Part: £ Difference per Car: £ Negligible. Signature from Cost Dept. that above is correct: LV/Rb.{R. Bowen} 18.1.27 Approval Table: INITIAL | DATE | REMARKS BJ. | 20 1 27 | agreed g R.{Sir Henry Royce} | 10.1.27 | Agreed. FHR. WOR.{Arthur Wormald - General Works Manager} | 8.1.27 | Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 10.1.27 | Agreed. Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 12.1.27 | Agreed. Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 14.1.27 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 10.1.27 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 10.1.27 | Agreed. E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | 11.1.27 | Agreed. I anticipate that the amount of spring load will not be final. PN.{Mr Northey} CWB. | 17.1.27 | Agreed. CWB. HS.{Lord Ernest Hives - Chair} | 7.1.27 | Agreed. Hs.{Lord Ernest Hives - Chair} Cost of Parts in Works which will be scrapped if commenced on :- Series......... £......... Series......... £......... Series......... £......... | ||