Rolls-Royce Archives
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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).
Schematic of a servo-assisted braking system with force calculations.

Identifier  ExFiles\Box 182\M20\M20.2\  img035
Date  31th October 1924 guessed
  
R.R.M BRAKING SYSTEM. N 304 1774
SERVO SPEED /D END

Diagram Labels and Dimensions:
P, B, T, A, V.A, G.S, Q.R, SERVO, SHOE, SCAM, 2.45, 2.775, 1.75, 1.95, 4.25, 3.4, 2.75, 2.85, 4.2, 4.5, 4.2 Dia, 15.2, 7.7, 1.2, 2.8

Calculations:
PROBE AT SHOE CENTRE.
B = T x 15.2 / 7.7 = 1.892 . B

SHOE 1.2 2.8
PROBE AT SHOE CENTRE.
A = (3.5/2.6) x (4.5/2.8) x (1.29/G.S) = 13.15 A
  
  


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