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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 chassis parts, specifically torque reaction dampers.

Identifier  ExFiles\Box 171\1\  img287
Date  22th September 1931
  
RR 75B (10M) (S459, 24-10-30) ORIGINAL COMPLETED 30.12.31.
STANDARDISATION of CHASSIS PARTS.
Description of Parts. TORQUE REACTION DAMPERS.
Origin. In conjunction with the diamond mounting of engine.
Experimental Test Report.
Fitted to 25-EX after first scheme had failed. These were quite satisfactory.
Road Test Report.
Fitted to 25-EX and ran 5,000 miles in France. These have less unit of pressure and have remained more consistent.
Weight of Old Part. £
Weight of New Part. £
Difference per Car. £
Cost of Old Part. Cost of this modification included under standardization sheet XNo. 7280 £10.5 for Diamond engine mounting.
Cost of New Part.
Difference per Car.
Signature from Cost Dept. that above is correct / RD. 28.12.31. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 28.12.31.
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
SG.{Arthur F. Sidgreaves - MD} | 29.12.31 | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 28/9/31 | Agreed FHR
WOR.{Arthur Wormald - General Works Manager} | 23.9.31 | Agreed Wor.{Arthur Wormald - General Works Manager}
C. | 24.9.31 | Agreed C.
RG.{Mr Rowledge} | 7.10.31 | Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 26.9.31 | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 23.9.31 | Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 5.10.31 | Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 28.9.31 | Agreed AE.
PN.{Mr Northey} | | -----
HS.{Lord Ernest Hives - Chair} | | Agreed.
STAMPED: EXAMINED
  
  


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