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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 the weights of individual components for Lovejoy and 20HP Rear shock dampers.

Identifier  ExFiles\Box 28\1\  Scan188
Date  6th January 1931
  
>832<
SHOCK DAMPER WEIGHTS.
Lovejoy & 20HP Rear.

DETAILS WEIGHED | LOVEJOY. | 20HP REAR.
CYLINDER ONLY. | 7 LB. 10 OZ | 2 LB. 12 OZS.
" {COMPLETE WITH END COVER TOP COVER VALVES ETC. | 8 " 13 " | 4 " 2 "
PISTON - COMPLETE. | 1 " 14 " | 1 " 6 "
INTER-LEVER - " - | 1 " 8 - | 13 "
MAIN LEVER - " - | 1 " 13 " | 1 " 15 "
TOTAL. | 14 " 0 - | 8 " 4 "
DAMPER COMPLETE. | 13 " 15 " | 8 " 3 "

Note on right side: Combined these wts are compared
  
  


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