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 for Tenoid brake linings on the 40/50 HP chassis to reduce squeaking.
| Identifier | ExFiles\Box 26\4\ Scan372 | |
| Date | 24th August 1928 | |
| RR 785 REVISED (10M) (D.C. 777-29-2-28) MC C. LTD X4466 COMPLETED 2.10.28 STANDARDISATION of CHASSIS PARTS. Date 24.8.28 X No. 4466 Drawing No. 7420 Description of Parts. BRAKE LININGS. 40/50 HP. Origin. To reduce squeaking brakes. Experimental Test Report. We have been trying various brake linings for several years. We believe Tenoid will give equal wearing qualities with less squeaks and more consistent braking. Road Test Report. Run 7000 miles on 12-EX (2500 miles in France), and 4,000 miles on 8-EX. We propose to try a small quantity on production before adopting this material extensively. 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. £2-0-8 Weight of New Part. Cost of New Part. £1-8-4 Difference per Car. Difference per Car. £0-12-4 decrease Cost of Parts in Works which will be scrapped if recommendation is commenced on :- Series.........£....... Series.........£....... Series.........£....... Signature from Cost Dept. that above is correct. GRL 21/9/28 G 27/9/28 INITIAL | DATE | REMARKS BJ. | 2.10.28 | Agreed. apart A BJ R.{Sir Henry Royce} | 28.8.28 | Agreed, FHR. Be very certain not to adopt something that will not give good wearing qualities: better to have squeaks than frequent adjustment and repairs. WOR.{Arthur Wormald - General Works Manager} | 28.8.28 | Agreed - a small quantity. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 27.8.28 | Agreed. RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 27.8.28 | Agreed. DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 27.8.28 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 27.8.28 | Agreed - as well as small quantity for production suggest used on all trials cars and company's cars to get quick comparative results. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 30.8.28 | Agreed. E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | 27.8.28 | Agreed when this material has sufficiently proved itself. PN.{Mr Northey} CWB. | | HS.{Lord Ernest Hives - Chair} | 24.8.28 | Agreed. Hs.{Lord Ernest Hives - Chair} | ||