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 of Ferobestos brake linings to reduce squeaking.
| Identifier | ExFiles\Box 171\1\ img171 | |
| Date | 4th June 1929 | |
| RR 755 REVISED (10M) (D.C. 777 - 29 - 2 - 28) Mᶜ C. Lᵀᴰ COMPLETED 22. 6. 29 STANDARDISATION of CHASSIS PARTS. Date 4. 6. 29 Description of Parts. FEROBESTOS BRAKE LINING Origin. To reduce squeaking brakes. Experimental Test Report. Does not score the drums as much as Ferodo bonded asbestos. Reasonable wearing qualities, less tendency to squeaks. Road Test Report. Run 10,000 miles on 8-EX and 4000 miles on 21-EX and 22-EX. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 1. 7. 0 Wor{Arthur Wormald - General Works Manager}/ENT. Cost of New Part. £ 1. 7. 0 Difference per Car. £ Nil. Signature from Cost Dept. that above is correct. G/RD. 19. 6. 29. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} X No. 719 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.........£......... INITIAL | DATE | REMARKS EX SG.{Arthur F. Sidgreaves - MD} | 21. 6. 29 | Agreed. SG.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | June 7/29 | Agreed. ZNR WOR.{Arthur Wormald - General Works Manager} | 7. 6. 29 | Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 11. 6. 29 | Agreed. RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 6. 6. 29 | Agreed. DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 5. 6. 29 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 6. 6. 29 | Agreed, but have not appreciated improvement in squeaking and groans on pull up. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 8/6/29 | Agreed E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | 6. 6. 29 | Agreed. PN.{Mr Northey} CWBX | 5. 6. 29 | Agreed. C. HS.{Lord Ernest Hives - Chair} | 4. 6. 29 | Agreed. Hs.{Lord Ernest Hives - Chair} Rn.{Mr Robinson} | ||