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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).
Modifications to the servo linkage, specifically the hand brake lever spring and a lubricator boss.

Identifier  ExFiles\Box 16\3\  Scan005
Date  1st October 1926
  
To BY.{R.W. Bailey - Chief Engineer} from DA.{Bernard Day - Chassis Design}
c. to BJ. HS.{Lord Ernest Hives - Chair}

X7370

DA{Bernard Day - Chassis Design}1/M2.10.26.

EAC.7. SERVO LINKAGE. X.7370
X.7420

Replying to BY/CGH{W Clough}6/H27.9.26., we regret that the omission to shew the hand brake lever has caused us to take up too much room sideways.

We send herewith N.sch.4274 shewing how we suggest the spring should be modified to come inside the hand brake lever. Should it be necessary to change the spring in service, the std. box spanner is too long we think to be used, and unless a short one is available it will be necessary to use a jaw spanner, so that we have left the hexagon as far outside the washer as possible.

The difficulty with the lubricator we suggest should be dealt with by putting a boss on the boss of the hand brake lever.

With reference to EAC.8. and present production we see that by using the shorter spring of N.sch.2249., you can get it in and we therefore agree to this proposal.

DA.{Bernard Day - Chassis Design}
  
  


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