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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).
Specification list for rebuilding the front end of a B.V. Bump Chassis.

Identifier  ExFiles\Box 119\1\  scan0156
Date  28th November 1938
  
1024.

HPS.{Horace Percy Smith - Experimental Factory Mgr} from Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}
c. Rm{William Robotham - Chief Engineer}/FWK.
c. Rm{William Robotham - Chief Engineer}/Clm.{D. D. Clapham}

Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale}1/R.28.11.38.

B.Y. BUMP CHASSIS.

Will you please rebuild the front end of this chassis to the following specification:-

Yokes. 1% Chrome steel, if available.
Upper Yoke Bearings. Silenblocs without rolled ends.
Rm{William Robotham - Chief Engineer}/FWK will supply.

Torque Arm. Lightened type Exs.1208. The end of
this should also be radiused as pre-
viously instructed.

Shock Dampers. Side valves - either LoP or with
Bellows.
Bronze sleeves for valves.
Cast Iron bushes.
"Perfect" Seals for glands.

Roll Rod As now fitted.

Torque Arm Spheres. Aluminium.

Lower levers Lightened as per verbal instructions.


Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale}
  
  


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