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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 a larger Autovac float chamber tank and valve to overcome petrol starvation at high speeds.

Identifier  ExFiles\Box 64\1\  scan0083
Date  4th June 1930
  
RR 755 REVISED (10H) (DG 346 19-7-29) BM. 5/643.
COMPLETED 5.7.30.
STANDARDISATION of CHASSIS PARTS.
Date 4.6.30.
Handwritten Ref: X7510.

Description of Parts. AUTOVAC. LARGER FLOAT CHAMBER TANK AND VALVE.

Origin. To overcome starvation of petrol at high sustained speeds.

Experimental Test Report.
Fitted to 23-EX. engine.
Supply of petrol ample for all speeds of engine.

Road Test Report.
Tested for 10,000 miles in France on 23-EX.
No shortage of petrol occurred and a full supply was maintained in the carburetter.

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

Cost of Old Part. £ 1. 14. 0d.
Cost of New Part. £ 1. 14. 0d. Agreed Wor.{Arthur Wormald - General Works Manager}
Difference per Car. £ Nil.

Signature from Cost Dept. that above is correct. G/RD. 2.7.30. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3.7.30.

Right-hand Box:
X No. 3579 (struck through) 7510.
Drawing No. AV.226. AV.357.
Part List Letter SR/EE 30.10.29.
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.......£.......

[Watermark: STANDARD]

Table of Initials:
INITIAL | DATE | REMARKS
B.J. XX Sg.{Arthur F. Sidgreaves - MD} | 4.7.30 | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 12.6.30 | Agreed FHR.
WOR.{Arthur Wormald - General Works Manager} | 7.6.30 | Agreed Wor.{Arthur Wormald - General Works Manager}
RG.{Mr Rowledge} | 5.6.30 | Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 6.6.30 | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 6.6.30 | Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 11.6.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer}, but failed twice with Br.{T. E. Bellringer - Repair Manager} and EP.{G. Eric Platford - Chief Quality Engineer} on last 500 miles. (Consider due to porous pot filter) EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 12.6.30 | Agreed AE.
PN.{Mr Northey} | 11.6.30 | Agreed PN.{Mr Northey}
CWB. | 6.6.30 | Agreed C.
HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair}
  
  


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