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Proposing a handle-operated central bolt for 20 HP wheel carriers, referencing models X.5600 and X.8600.


Identifier  ExFiles\Box 103\5\  scan0050
Date  7th September 1927
  
Hs. {Lord Ernest Hives - Chair} from DA {Bernard Day - Chassis Design} /EV. {Ivan Evernden - coachwork}
c. to SG. {Arthur F. Sidgreaves - MD}

X5600

DA {Bernard Day - Chassis Design} /EV {Ivan Evernden - coachwork} 2/M7.9.27.

20 HP. WHEEL CARRIERS X.5600 X.8600

Both Sales and R. {Sir Henry Royce} have suggested that a handle might be more convenient for operating the central bolt of the 20 HP. wheel carriers.

We cannot use the 40/50 bolt scheme without radical changes in the carrier design. We would however like to try the present stud scheme operated by means of a handle, and for the experiment we suggest that you replace the hexagon by a screw thread, and screw in a standard 40/50 handle, thus -

SEE ORIGINAL FOR SKETCH.

This would be no worse from the point of binding the thread than is the use of an ordinary fixed spanner on the hexagon.

Would Hs. {Lord Ernest Hives - Chair} kindly report on this when we will discuss the matter with R. {Sir Henry Royce}

DA {Bernard Day - Chassis Design} /EV. {Ivan Evernden - coachwork}
  
  
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).


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