Rolls-Royce Archives
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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 modified dust covers for rear brakes to prevent noise from grit.

Identifier  ExFiles\Box 171\1\  img002
Date  10th December 1925
  
ORIGINAL COMPLETED 13.1.26
STANDARDISATION of CHASSIS PARTS.
Description of Parts. MODIFIED DUST COVERS FOR REAR BRAKES.
Origin. To prevent small stones and grit getting into brakes.
Experimental Test Report. We have received complaints of small stones getting between brake drums and dust cover and causing considerable noise. The modified design should prevent this.
Road Test Report. Fitted to 8-EX - run 10,000 miles in France. No troubles. Fitted to 11-EX car. Recommended for standardisation.
Weight of Old Part.
Weight of New Part.
Difference per Car. Negligible.
Signature of Mr. De LOOZE that above is correct.
SIGNATURES
MR. JOHNSON 13.1.26. Agreed. C.Johnson.
MR. B. JOHNSON 13.1.26 Agreed. B.J.
MR. ROYCE 18/12/25 Agreed FHR
MR. WORMALD 10.12.25 Agreed. Wor.{Arthur Wormald - General Works Manager}
MR. ROWLEDGE 11.12.25 Agreed. Rg.{Mr Rowledge}
MR. DAY 12.12.25 Agreed. Da.{Bernard Day - Chassis Design}
MR. BAILEY 10.12.25 Agreed. BY.{R.W. Bailey - Chief Engineer}
MR. PLATFORD 10.12.25 Agreed. EP.{G. Eric Platford - Chief Quality Engineer}
MR. ELLIOTT 11/12/25 Agreed A.E.
MR. NORTHEY 11.12.25 Agreed. PN.{Mr Northey}
MR. HIVES 12.1.26 Agreed. E.Hives.
[Box checked X]
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.........£.......
[Stamped] SANCTIONED
  
  


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