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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).
Comparison of weights for Lovejoy and 20 HP Rear shock damper components.

Identifier  ExFiles\Box 28\1\  Scan184
Date  6th January 1931
  
X 832.
X5520
SHOCK DAMPER WEIGHTS.
Lovejoy & 20 HP Rear.

DETAILS WEIGHED. | LOVEJOY. | 20 HP. REAR.
---
Cylinder only. | 7 lbs. 10 ozs. | 2 lbs. 12 ozs.
Cylinder only, complete with end cover, top cover, valves, etc. | 8 lbs. 13 ozs. | 4 lbs. 2 ozs.
Piston - complete | 1 lb. 14 ozs. | 1 lb. 6 ozs.
Inter-lever - complete | 1 lb. 8 ozs. | 13 ozs. )
Main Lever - complete | 1 lb. 13 ozs. | 1 lb. 15 ozs. )
TOTAL = | 14 lbs. 0 ozs. | 8 lbs. 4 ozs.
DAMPER COMPLETE = | 13 lbs. 15 ozs. | 8 lbs. 3 ozs.

+ Combined these wts. are comparative.
  
  


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