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 a Rear Brake Equaliser (Foot) to reduce the sponginess of brakes by replacing lever G.52381 with G.54143.
| Identifier | ExFiles\Box 172\1\ img181 | |
| Date | 5th January 1931 | |
| RR 759 (10M) (3-7-30) BM. 6/2571. ORIGINAL COMPLETED 21.2.31. STANDARDISATION of CHASSIS PARTS. Date: 5.1.31. Description of Parts. Rear Brake Equaliser (Foot). reducing direct braking by 25%. G.54143. lever in place of G.52381. Origin. To reduce sponginess of brakes. Experimental Test Report. Road Test Report. Fitted on 18.G.IV. and ran 10,000 miles. Efficiency of Brakes were very good. X No. X. 5330. Drawing No. 54143. 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 over. D Use existing stock. Alteration effective on future Chassis. Weight of Old Part. Cost of Old Part. £ - 2. 0d. Weight of New Part. Cost of New Part. £ - 2. 11d. Difference per Car. Difference per Car. £ Nil. Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen}16.2.31. G.18.2.31. Wor.{Arthur Wormald - General Works Manager} Cost of Parts in Works which will be scrapped if commenced on :- Series.........£......... Series.........£......... Series.........£......... INITIAL DATE REMARKS SG.{Arthur F. Sidgreaves - MD} 19.2.31 Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} 1/2/31 Agreed R.{Sir Henry Royce} WOR.{Arthur Wormald - General Works Manager} 16.1.31 Agreed Wor.{Arthur Wormald - General Works Manager} C. 16.1.31 Agreed C. RG.{Mr Rowledge} 19.1.31 Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} 21.1.31 Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} 19.1.31 Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} 17.1.31 Agreed EP.{G. Eric Platford - Chief Quality Engineer} 18-G4. brakes inclined thump and not very "progressive". Cannot see due to above. E.{Mr Elliott - Chief Engineer} 21.1.31 Agreed AE. PN.{Mr Northey} 21.1.31 Agreed PN.{Mr Northey} Hs.{Lord Ernest Hives - Chair} Agreed Hs.{Lord Ernest Hives - Chair} [STAMPED] 20/25 H.P. CHASSIS | ||