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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).
Letter discussing pump adoption, its use on other engines, and a proposed test on a Silver Ghost model.

Identifier  ExFiles\Box 40\3\  Scan040
Date  7th October 1925
  
Oy1-E-10725
-4-
October 7, 1925.

If you would send us a sketch of an available spindle end however I will get them to submit a pump.

They admit that the thing which holds back the device from general adoption is the difficulty of getting "close" enough to the manufacturer to work out a joint design of oil pump drive etc. which is satisfactory to both.

It is standard on Chrysler 4 and Maxwell and is used by a number of the larger marine engines, where the ordinary vacuum feed would be useless and the pressure feed has danger of leakage and explosion.

Am having them send you a tank only at first so that you can perhaps use it on a Silver Ghost, using the air pump with connections reversed, for the vacuum.

Yours very truly,
Maurice Olley

MO/E
  
  


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