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).
Directive to alter the clutch pressure plate design for Bentley and 20/25 HP chassis to prevent cracking.
| Identifier | ExFiles\Box 85\2\ scan0070 | |
| Date | 23th March 1934 | |
| X212 COPY. BY/TWD.{T. W. D???Aeith} c. Sft.{Mr Swift} c. Mx.{John H Maddocks - Chief Proving Officer} c. Hs.{Lord Ernest Hives - Chair} BY.10/G.23.3.34. BENTLEY AND 20/25 HP. CHASSIS - CLUTCH. In view of the fact that we are still getting odd cases of clutch pressure plates cracking on the inside rim, By.{R.W. Bailey - Chief Engineer} suggests that the inside diameter of the pressure plate is decreased by .200" in order to increase the thickness of the inner rim by .100", therefore will you please issue instructions to the Works accordingly. The alteration should, of course, apply to both Bentley and 20/25 HP. Chassis - cast-iron pressure plates only. BY.{R.W. Bailey - Chief Engineer} | ||