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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).
Proposal for the deletion of petrol filters from the main petrol tank.

Identifier  ExFiles\Box 171\2\  img074
Date  6th December 1932
  
RR 785 (10H) (30405. 21-4-32) BM. 3/8382/4. COMPLETED 6.1.33. ORIGINAL
STANDARDISATION of CHASSIS PARTS.
Date 6.12.32.
X No. 7460
Drawing No.
Part List

Description of Parts: DELETION OF PETROL FILTERS FROM MAIN PETROL TANK.
Origin: These filters are considered unnecessary since the adoption of the Enots filter.

Experimental Test Report:
It is generally almost impossible to remove fitted filters from ... with the ... type of body with rear portion. We have however heard of a case where the filler ... have been found stopped up with foreign matter.

Road Test Report:
15,000 miles have been completed on Exptl. car... with... petrol tank filter... trouble has been experienced.

STAMP: PHANTOM II 20/25 H.P. CHASSIS.

Weight of Old Part.
Cost of Old Part. £ 0-13-2d.
Weight of New Part.
Cost of New Part. £ 0-1-1d.
Difference per Car.
Difference per Car. £ 0-12-2d. Decrease.
Signature from Cost Dept. that above is correct. G/Rb.{R. Bowen}3.1.33.G.4.1.33.
Cost of Parts in Works which will be scrapped if commenced on :-
Series E
Series F
Series G

INITIAL | DATE | REMARKS
SG.{Arthur F. Sidgreaves - MD} | 5.1.33. | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 13/12/32 | Agreed IHRF assuming the petrol filter comes before pump
WOR.{Arthur Wormald - General Works Manager} | 7.12.32. | Agreed Wor.{Arthur Wormald - General Works Manager} or autovac, if these filters (or strainer) never block
C. | 7.12.32. | Agreed C. They do not require cleaning, as they may clear
RG.{Mr Rowledge} | 7.12.32. | Agreed RG.{Mr Rowledge} themselves after doing duty of keeping something out
DA.{Bernard Day - Chassis Design} | 9.12.32. | Agreed DA.{Bernard Day - Chassis Design} of the fuel pipes &c. my own experience is that
BY.{R.W. Bailey - Chief Engineer} | 12.12.32. | Agreed BY.{R.W. Bailey - Chief Engineer} we have been remarkable free from stops on the
EP.{G. Eric Platford - Chief Quality Engineer} | 7.12.32. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} & MX.{John H Maddocks - Chief Proving Officer} road: by blocked pipes, cocks, valves
E.{Mr Elliott - Chief Engineer} | 8.12.32. | Agreed AE. autovac & other fittings not protected by the real
PN.{Mr Northey} | 19.12.32 | Agreed PN.{Mr Northey} one need filter of the Enots type
HS.{Lord Ernest Hives - Chair} | [blank] | Agreed HS.{Lord Ernest Hives - Chair}
  
  


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