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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 proposal for road springs on 40/50 HP and 20 HP models to suit bad roads abroad.

Identifier  ExFiles\Box 171\3\  img229
Date  22th January 1924
  
STANDARDISATION of CHASSIS PARTS.

Description of Parts: ROAD SPRINGS. 40/50 HP. AND 20 HP.
Origin: To suit bad roads abroad.

Experimental Test Report.
We frequently receive complaints of road springs being too weak for countries such as - Australia, Poland, Portugal etc. The suggested modification is to increase the strength of road springs 20%.

Road Test Report.
The effect of the 20% stiffer springs is that they will greatly reduce the bumping over bad roads - we also expect they will tend to reduce spring failures. We recommend we adopt 20% stiffer springs where roads are consistently bad.

[Actions]
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.
Weight of New Part.
Cost of New Part.
Difference per Car.
Difference per Car. Estimated increase in cost of such cars. O
Cost of Parts in Works which will be scrapped if commenced on :-
Series.........£.........
Series.........£.........
Series.........£.........

Signature of Mr. De LOOZE that above is correct. Hy{Tom Haldenby - Plant Engineer}/JW 25.1.24.

SIGNATURES, DATE, REMARKS

MR. JOHNSON, 3.3.24, Agreed. C.J.
MR. B. JOHNSON, 3.3.24, Agreed, provided Sg.{Arthur F. Sidgreaves - MD} advises whether strong springs are requested, in each case. BJ.
MR. ROYCE, 12/2/24, Agreed. FHR. (2) Had we not at once make standard the 25% stronger spring proposed for the T.T. test.
MR. WORMALD, 22.1.24, Agreed. Wor.{Arthur Wormald - General Works Manager} Arken? so as to have less travel & strike.
MR. ROWLEDGE, 23.1.24, Agreed. RG.{Mr Rowledge} strick? Kindly advise me if this increase does lessen the risk of breakage
MR. DAY, 24.1.24, Agreed. DA.{Bernard Day - Chassis Design} (3) Do we alter the initial camber? So as not to bring the car level and up at rear.
MR. BAILEY, 23.1.24, Consider this is necessary to prevent breakages. BY.{R.W. Bailey - Chief Engineer} & So far increase the thickness of the rubber buffers.
MR. PLATFORD, 23.1.24, Agreed. EP.{G. Eric Platford - Chief Quality Engineer} R
MR. ELLIOTT, 26.1.24, Agreed. E.{Mr Elliott - Chief Engineer} It is presumed we also fit shock dampers to rear for such work.
MR. NORTHEY, 24.1.24, Agreed. PN.{Mr Northey}
MR. HIVES, 28.2.24, Agreed. E.{Mr Elliott - Chief Engineer} Hives
  
  


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