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 report for 40/50 HP brake linings to reduce squeaking.
| Identifier | ExFiles\Box 171\1\ img156 | |
| Date | 24th August 1928 | |
| RR 785 REVISED (10H) (D.C. 777-29-2-28) Mᶜ C.Lᵀᴰ ORIGINAL COMPLETED 2.10.28 STANDARDISATION of CHASSIS PARTS. Date 24. 8. 28 Description of Parts. BRAKE LININGS. 40/50 HP. X No. 4466 / 7420 Drawing No. Origin. To reduce squeaking brakes. Part List 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 in France), 4,000 miles on 8-EX. We propose to try a small quantity on production before adopting this material extensively. 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 sd. WOR.{Arthur Wormald - General Works Manager} Weight of New Part. Cost of New Part. £1. 8. 4d. Difference per Car. Difference per Car. £ 12. 4d. decrease. Signature from Cost Dept. that above is correct. G/RD 27.9.28 G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Cost of Parts in Works which will be scrapped if commenced on :- Series.......£....... Series.......£....... Series.......£....... INITIAL DATE REMARKS B.J. 2.10.28 Agreed. B.J. R.{Sir Henry Royce} 28/8/28 Agreed. I.H.R. be very certain not to adopt something. WOR.{Arthur Wormald - General Works Manager} 28.8.28 Agreed a small quantity that will not give good wearing qualities better to have squeaks than frequent adjustment. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} 27.8.28 Agreed. RG.{Mr Rowledge} repairs + H.R. 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. E.{Mr Elliott - Chief Engineer} 30/8/28 Agreed CE 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} | ||