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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 report for an oil relief valve designed to improve reliability.

Identifier  ExFiles\Box 171\1\  img057
Date  22th September 1926
  
RR 755 (10M) (DB{Donald Bastow - Suspensions}120 12-9-24) MS 301225
COMPLETED 20.10.26
STANDARDISATION of CHASSIS PARTS.
Date 22.9.26
X No. 7205, 8305
Drawing No.
Part List
Description of Parts: OIL RELIEF VALVE.
Origin: To improve reliability.
Experimental Test Report: The new design of valve avoids the risk of stick-ing. It is also fitted in a more accessible position.
Road Test Report: Run 10,000 miles on 12-EX. No failures during test of oil pressure. This is the first 10,000 miles which has been completed without relief valve having to be dismantled.
Side Box Options:
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 Chassis not yet handed to test.
D Use existing stock Alteration effective on future Chassis.
Weight of Old Part.
Cost of Old Part. £1. 18. 10d.
Weight of New Part.
Cost of New Part. £2. 2. 5d.
Difference per Car.
Difference per Car. £ 3. 7d. increase.
Cost of Parts in Works which will be scrapped if commenced on:—
Series........£........
Series........£........
Series........£........
Signature of Mr. De LOOZE that above is correct. My/RB.{R. Bowen} 19.10.26.
SIGNATURES:
MR. JOHNSON C.W.B., DATE: 24.9.26, REMARKS: Agreed. CWB.
MR. B. JOHNSON, DATE: 20.10.26, REMARKS: Agreed. B.Johnson.
MR. ROYCE, DATE: 24/9/26, REMARKS: Agreed SHR
MR. WORMALD, DATE: 22.9.26, REMARKS: Agreed. Wor.{Arthur Wormald - General Works Manager}
MR. ROWLEDGE, DATE: 22.9.26, REMARKS: Agreed. Rg.{Mr Rowledge}
MR. DAY, DATE: 24.9.26, REMARKS: Agreed. Da.{Bernard Day - Chassis Design}
MR. BAILEY, DATE: 11.10.26, REMARKS: Agreed. BY.{R.W. Bailey - Chief Engineer}
MR. PLATFORD, DATE: 23.9.26, REMARKS: Agreed. EP.{G. Eric Platford - Chief Quality Engineer}
MR. ELLIOTT, DATE: 25/9/26, REMARKS: Agreed EE, but the design we want to standardise is LEC-2257 which is somewhat different in arrangement to one actually tested although the valves themselves are identical.
MR. NORTHEY, DATE: 23.9.26, REMARKS: Agreed. PN.{Mr Northey}
MR. HIVES, DATE: 22.9.26, REMARKS: Agreed. HS.{Lord Ernest Hives - Chair}
[The document is stamped with the word 'PHANTOM' in large green letters]
  
  


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