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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 drawing for 20 HP and 40/50 HP front and rear road springs for various export markets.

Identifier  ExFiles\Box 178\1\  img202
Date  28th August 1926 guessed
  
CONDITIONS FOR SPAIN, PORTUGAL, ITALY, POLAND & RUSSIA, AUSTRALIA, NEW ZEALAND, BRAZIL & S. AMER, AUSTRIA, EGYPT
MALAY STATES, S. AFRICA

Top Left Quadrant:
20 H.P. FRONT ROAD SPRING
F 53583
1.950 CLEARANCE (FULL LOAD)
+.300
-.300 BUFFER TO SPRING CLIPS
Dimensions: 18.000, 20.000
UNLOADED CAMBER: 2.500
LOADED CAMBER: .500 (POS)
WIDTH OF SPRING PLATES: 1.750

Top Right Quadrant:
20 H.P. REAR ROAD SPRING
F53045
2.900 CLEARANCE BUFFER TO AXLE BKT
+.375
-.375 (FULL LOAD)
Dimensions: 28.000, 28.000
UNLOADED CAMBER: = 4.000
LOADED CAMBER: = NIL (SPRING FLAT)
WIDTH OF SPRING: = 2.250

Bottom Left Quadrant:
- 40/50 H.P. FRONT ROAD SPRING -
F 71975
2.000 CLEARANCE BUFFER TO SPRING CLIPS
+.250
-.250 (FULL LOAD)
Dimensions: 21.000, 22.500
UNLOADED CAMBER: 2.600
LOADED CAMBER: .250 (NEG)
WIDTH OF SPRING PLATES: 2.000

Bottom Right Quadrant:
- 40/50 H.P. REAR ROAD SPRING -
F10563
2.400 BUFFER TO AXLE
+.500
-.500 CLEARANCE (FULL LOAD)
Dimension: 8.925
Dimensions: 26.500, 26.500
UNLOADED CAMBER: 1.900
LOADED CAMBER: 1.500 (NEG)
WIDTH OF SPRING PLATES: 2.500
  
  


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