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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).
Friction issues in the steering of a 20 HP car.

Identifier  ExFiles\Box 106\3\  scan0128
Date  17th December 1926
  
To Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} from DA.{Bernard Day - Chassis Design}
Y5430
DA{Bernard Day - Chassis Design}4/M17.12.26.

FRICTION IN THE STEERING
OF 20 HP. CAR.

X.5430
X.5425

Referring to Hs{Lord Ernest Hives - Chair}/RmL/LG11.2.26, we had hoped
to be able to discuss this with R.{Sir Henry Royce} before he went away, but
this was not found to be possible at last.

We propose however to design a spring loaded
cross steering tube joint and submit it to R.{Sir Henry Royce} in the ordinary
routine. We think however there will be some difficulty in
getting the very high load that you apparently ask for in
order to give you a satisfactory friction.

In this connection we suppose you are proceeding
with the experiment consisting of the friction plates in the
pivot with a load varied by a spring, which you will remember
has the advantage of retaining most of its friction when the
wheel is off the ground. If this was found to help in any
way we feel sure that it would be more acceptable than ball
joints with very spring loads. We should no doubt still
continue the spring loaded ball joints, but the loads would
be moderate.

DA.{Bernard Day - Chassis Design}
  
  


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