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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 an Autovac top in aluminium to save cost and weight.

Identifier  ExFiles\Box 171\1\  img213
Date  28th June 1930
  
RR 785 REVISED (10H) (DG 348 19-7-29) BM. 6/543.
COMPLETED 8.9.30
STANDARDISATION of CHASSIS PARTS.
Date '28.6.30.
No. 5510
X No. 7510.
Drawing No.
Part List
Description of Parts. AUTOVAC TOP IN ALUMINIUM.
Origin. Saving in cost and weight.
Experimental Test Report. This alteration will be incorporated with the larger drop valve giving greater efficiency.
Road Test Report. Running 10,000 miles on 24-EX. Fitted to 19-MX.{John H Maddocks - Chief Proving Officer}
Large stamp text: H.P. CHASSIS PHANTOM
Weight of Old Part.
Cost of Old Part. £1. 12. 0d. 40/50 or 20/25 HP.
Weight of New Part.
Cost of New Part. £1. 8. 0d.
Difference per Car.
Difference per Car. £ - . 4. 0d. Decrease.
Signature from Cost Dept. that above is correct. G/RD.1.9.30. G.3.9.30.
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.......£.......
WOR.{Arthur Wormald - General Works Manager}
INITIAL DATE REMARKS
BJ. 4.9.30 Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} 29/7/30 Agreed JWR
WOR.{Arthur Wormald - General Works Manager} 1.7.30 Agreed Wor.{Arthur Wormald - General Works Manager}
RG.{Mr Rowledge} 1.7.30 Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} 2.7.30 Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} 30.6.30 Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} 30.6.30 Agreed, if O.K. after 10,000 miles test. Could do with greater efficiency. EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} 5.7.30 Agreed AE.
PN.{Mr Northey} 2.7.30 Agreed PN.{Mr Northey}
CWB. Agreed C.
HS.{Lord Ernest Hives - Chair} Agreed Hs.{Lord Ernest Hives - Chair}
  
  


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