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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).
The design of engaging corners for a sequence starter, advocating for a simpler approach.

Identifier  ExFiles\Box 64\4\  scan0170
Date  30th January 1929
  
EFC. } from R.{Sir Henry Royce}
Hs.{Lord Ernest Hives - Chair}
E.{Mr Elliott - Chief Engineer}
c. SG.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager}

SECRET

X7685

R4/M30.1.29.
REC'D AT WW. 4.2.29.

SS.{S. Smith} SEQUENCE STARTER. X.4562. X.7625

I cannot help thinking we are doing all
manner of odd things instead of the simplest scheme of
well rounding all the corners, and then with suitable
springs and forces the engagement will be all right.

EAC.7 only stuck once in nearly two years, and was an
early attempt.

I favour either simple nearly sharp engaging
corners with rounded disengaging corners, and also perhaps
the top corners of the engaging rounded.

Also many times I have asked what Bosch does
on his similar engaging corners; they are in Mercedes and
several other cars.


R.{Sir Henry Royce}
  
  


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