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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).
Coil mounting and the durability of platinum iridium points in contact breakers.

Identifier  ExFiles\Box 61b\4\  scan0059
Date  6th July 1921
  
Oy8 - G 4821
Sheet #2.

With regard to its mounting, we suggest that the position shown by Mr. Hives in the photograph attached to his letter Hs{Lord Ernest Hives - Chair}1/LG6.7.21 is very neat and accessible.

An advantage of the Bosch coil is that, if necessary, it can be more readily dismantled, inspected and re-assembled than our own coil, which is sealed into its case.

X.1818
X.186
X.2894
(2) PLATINUM IRIDIUM POINTS IN CONTACT BREAKER:

The American Bosch Co. when approached on this point state that they consider platinum iridium points would be more durable than tungsten. We are therefore writing them for a quotation.

Yours truly,

WO/G
ROLLS-ROYCE OF AMERICA, Inc.
Per M.{Mr Moon / Mr Moore} Olley
COPY
  
  


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