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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 a flexible split piston for use without cylinder liners.

Identifier  ExFiles\Box 171\3\  img061
Date  30th July 1920
  
STANDARDISATION of CHASSIS PARTS.

Description of Parts.
Flexible split piston (low compression) for use without cylinder liners.

Drawing No. E.18688.
Part List.

Origin.
To do away with the necessity of using an aluminium liner for low compression engines.

Experimental Test Report.
This alteration only consists in altering the position of the gudgeon pin bosses .125".

Road Test Report.
None taken.

Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives.

Weight of Old Part. £
Cost of Old Part. £
Weight of New Part. £
Cost of New Part. £
Difference per Car. £

Cost of Parts in Works and Stores which will be scrapped if commenced on:-
Series............£
Series............£
Storekeeper advised re above.
Storekeeper's Signature.

Signature of Mr. DeLOOZE that above is correct.

SIGNATURES, DATE, REMARKS
Mr. JOHNSON, 10 VIII, Johnson, subject to a test of 500 hours before cars so fitted are issued
Mr. ROYCE, 10/9/20, F H RoyceSir Henry Royce
Mr. WORMALD, 31.7.20, Agreed. Wor.{Arthur Wormald - General Works Manager}
Mr. NADIN
Mr. PLATFORD, 2.8.20, Agreed after an ordinary test. E.P.
Mr. NORTHEY, 5.8.20, Agreed provided the policy is accepted which will prevent alteration of compressions at any future time unless new pistons be fitted. T.N.
Mr. BAILEY, 3.8.20, Agreed. By.{R.W. Bailey - Chief Engineer}
Mr. BARRINGTON, Aug. 2. 20, Consider this requires test before Standardisation Bm
Mr. DAY, 3.8.20, Agreed. Da.{Bernard Day - Chassis Design}
  
  


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