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 an anti-brake squeaking device for the 20 HP chassis.
| Identifier | ExFiles\Box 120\1\ scan0014 | |
| Date | 31th March 1927 | |
| RR 755 REVISED (10H) (DE 649 9-12-26) BM. 2/1187. XC4612. COMPLETED 16.6.27 STANDARDISATION of CHASSIS PARTS. Date 31.3.27 Description of Parts. ANTI-BRAKE SQUEAKING DEVICE. Origin. To cure complaints of front brake squeaks on the 20 HP. Experimental Test Report. This type of damper is already fitted on the rear of the 20 HP. and the front of the 40/50. It has caused no trouble. Road Test Report. We consider the device a definite improvement. It is now on 10-G-111 in France running 10,000 miles. We do not anticipate any failure. The test in France will be completed before it can come on production. X No. 5420 4612 Drawing N. sch. No. 2369 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. £ 3 - 1 - 3 Weight of New Part. Cost of New Part. £ 5 - 7 - 3 Difference per Car. £ 2 - 6 - 0 increase Signature from Cost Dept. that above is correct. MyRH 1/4/27 Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... INITIAL | DATE | REMARKS BJ. | 26.6.27 | Agreed. B.Johnson. R.{Sir Henry Royce} | 14.3.27 | Agreed. I want to be sure these are really needed, & also I have asked that they should be improved as DA.{Bernard Day - Chassis Design} suggests - i.e. slightly narrower, & fitting a simple groove. This can be done fairly easily. WOR.{Arthur Wormald - General Works Manager} | 28.3.27 | Agreed. Wor.{Arthur Wormald - General Works Manager} RG.{Mr Rowledge} | 15.3.27 | Agreed. RG.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 14.3.27 | Agreed. Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 14.3.27 | Agreed. BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 12.3.27 | Agreed. EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 10.4.27 | Agreed. E.{Mr Elliott - Chief Engineer} PN.{Mr Northey} | | CWB. | 14.3.27 | Agreed. CWB. Hs.{Lord Ernest Hives - Chair} | 11.3.27 | Agreed. Hs.{Lord Ernest Hives - Chair} | ||