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).
Design of the standard oil pumps, their 20° obliquity gears, and the absence of noise complaints.

Identifier  Morton\M3.7\  img021
Date  29th August 1919
  
To E.{Mr Elliott - Chief Engineer} from H.{Arthur M. Hanbury - Head Complaints}
c.c. to BN.{W.O. Bentley / Mr Barrington}
c.c. to EY.
c.c. to D.{John DeLooze - Company Secretary}
ORIGINAL EHR/L129.8.19. 2
RE OIL PUMPS. x 3449
The present oil pumps we are using on the chassis have no small recess opposite the point of the meshing of the teeth. The gears are of the 20° obliquity. This type of pump has been standard on the chassis for some considerable time and we have had no complaint of.noise.
EH.
  
  


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