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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).
Testing floating fulcrum front brakes with jointed shoes, noting increased efficiency but a spongy feel.

Identifier  ExFiles\Box 73\2\  scan0135
Date  8th December 1923
  
To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair}
c. to CJ.
c. to RG.{Mr Rowledge}
c. to Da.{Bernard Day - Chassis Design}

X.9940

Hsl/LG8.12.23.

BRAKES - X.9940

We have tested the floating fulcrum front
brakes with the jointed shoes. We find that it
undoubtedly increases the efficiency of the brakes.
The brakes, however, feel very spongy, and the pedal
comes on to the floorboards.
We are now going back to the original lever-
age for the brakes.
Our tests so far shew that the jointed shoe
is a definite gain as regards effective brakes.
The endurance test on the dynamometer which has been
made shows that the wear is as even as we get on the
present standard brakes.

Hs.{Lord Ernest Hives - Chair}
  
  


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