Rolls-Royce Archives
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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 the operating temperature for the red warning light on the thermometer to 97.5 degrees.

Identifier  ExFiles\Box 171\1\  img209
Date  1st August 1930
  
RR 75B REVISED (10H) (DG 342 19-7-29) BM. 6/643.
ORIGINAL COMPLETED 4.9.30.
STANDARDISATION of CHASSIS PARTS.
Description of Parts: OPERATION AT 97.5º OF THE RED WARNING LIGHT ON THERMOMETER.
Origin: TO prevent unnecessary apprehension.
Experimental Test Report: We wish to revert to this temperature of operation because if brought in lower the driver becomes alarmed unnecessarily.
Road Test Report: Run 10,000 miles on several cars. Retrospective action might with advantage be taken on cars destined for hot climates.
Part List:
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.
Weight of Old Part.
Weight of New Part.
Difference per Car.
Cost of Old Part. £2. 7. 6d.
Cost of New Part. £2. 7. 6d.
Difference per Car. £ NIL.
Agreed Wor.{Arthur Wormald - General Works Manager}
Cost of Parts in Works which will be scrapped if commenced on:-
Series..........£.........
Series..........£.........
Series..........£.........
Signature from Cost Dept. that above is correct. G/RD.1.9.30. G.2.9.30
INITIAL | DATE | REMARKS
BJK Sg.{Arthur F. Sidgreaves - MD} | 3.9.30 | Agreed Sg.{Arthur F. Sidgreaves - MD}
R.{Sir Henry Royce} | 11/8/30 | Agreed RHR.
WOR.{Arthur Wormald - General Works Manager} | 19.8.30 | Agreed Wor.{Arthur Wormald - General Works Manager}
RG.{Mr Rowledge} | 11.8.30 | Agreed Rg.{Mr Rowledge}
DA.{Bernard Day - Chassis Design} | 12.8.30 | Agreed Da.{Bernard Day - Chassis Design}
BY.{R.W. Bailey - Chief Engineer} | 7.8.30 | Agreed By.{R.W. Bailey - Chief Engineer}
EP.{G. Eric Platford - Chief Quality Engineer} | 4.8.30 | Agreed EP.{G. Eric Platford - Chief Quality Engineer}
E.{Mr Elliott - Chief Engineer} | 11.8.30 | Agreed AE.
PN.{Mr Northey} | 20.8.30 | Agreed PN.{Mr Northey}
CWB. | | Agreed C.
HS.{Lord Ernest Hives - Chair} | | Agreed Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}
PHANTOM (watermark)
  
  


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