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).
Drawing and specification tables for front and rear leaf spring assemblies.
| Identifier | ExFiles\Box 41\1\ Scan057 | |
| Date | 22th March 1929 | |
| LEFT DRAWING (FRONT) DRG No. S.C. CURVE PLOT. FRONT CAMBER A=777.00 Values (left side): 1ST 15.00, 2ND 9.75, 3RD 6.50, 4TH 4.875, 5TH 3.900, 6TH 3.250, 7TH 2.800, 8TH 2.500, 9TH 2.125, 10TH 1.875, 11TH 1.750 Values (right side): 13.88, 113.10, 105.50, 84.00, 174.00, 164.00, 155.00 FRONT SPRING TABLE Table Headers: LEAF, A (LENGTH OF THICK PART), B (THICKNESS OF LEAF AT B'D'G), C (THICKNESS OF LEAF AT B'D'G), D (WIDTH OF LEAF) - MAIN LEAF: A=2.500, B=0.210, C=0.180, D=1.750 - 2nd LEAF: A=2.750, B=0.203, C=0.190, D=1.750 - 3rd LEAF: A=3.000, B=0.200, C=0.180, D=1.750 - 4th LEAF: A=3.500, B=0.190, C=0.185, D=1.750 - 5th LEAF: A=3.000, B=0.175, C=0.180, D=1.750 - 6th LEAF: A=3.000, B=0.175, C=0.175, D=1.750 - 7th LEAF: A=3.500, B=0.175, C=0.170, D=1.750 - 8th LEAF: A=3.500, B=0.170, C=0.170, D=1.750 - 9th LEAF: A=3.750, B=0.170, C=0.170, D=1.750 - 10th LEAF: A=4.000, B=0.170, C=0.170, D=1.750 - 11th LEAF: A=4.000, B=0.165, C=0.165, D=1.750 Note: THESE TWO LEAVES HAVE NIBS FOR REBOUND CLIPS RIGHT DRAWING (REAR) REF No /22.3.29. REAR LUGS TO REST ON FLAT CAMBER R=45.0 CAMBER A=1207.00 Values (left side): 1ST 15.00, 2ND 9.00, 3RD 6.00, 4TH 4.285, 5TH 3.262, 6TH 2.814, 7TH 2.388, 8TH 1.875, 9TH 1.500, 10TH 1.285 Values (right side): 148.00, 138.00, 118.00, 100.00, 85.00, 70.00, 60.00, 52.00, 45.00 REAR SPRING TABLE Table Headers: LEAF, A (LENGTH OF THICK PART), B (THICKNESS OF LEAF AT B'D'G), C (THICKNESS OF LEAF AT B'D'G), D (WIDTH OF LEAF) - MAIN LEAF: A=3.000, B=0.335, C=0.312, D=2.000 - 2nd LEAF: A=3.000, B=0.325, C=0.300, D=2.000 - 3rd LEAF: A=3.000, B=0.275, C=0.250, D=2.000 - 4th LEAF: A=3.500, B=0.250, C=0.218, D=2.000 - 5th LEAF: A=3.000, B=0.218, C=0.186, D=2.000 - 6th LEAF: A=3.000, B=0.180, C=0.150, D=2.000 - 7th LEAF: A=3.500, B=0.145, C=0.120, D=2.000 - 8th LEAF: A=4.375, B=0.117, C=0.093, D=2.000 - 9th LEAF: A=4.000, B=0.095, C=0.070, D=2.000 - 10th LEAF: A=4.500, B=0.080, C=0.060, D=2.000 Note: THESE TWO LEAVES HAVE BOLT TAB & REBOUND CLIPS | ||