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).
With diagrams discussing the causes of speed variation and proposals to minimize it.

Identifier  ExFiles\Box 25\3\  Scan039
Date  31th January 1912 guessed
  
(2)
engine speed varies
spring
Balance wheel
Road

(2)
coupling out of line may also cause a difference of speed of turning which would not be affected by any alteration in weight of the flywheel.

Also seem very small amount of movement is fatal

Minimise.

Make the whole of the parts very symetrical rather than badly turned and balanced by drilling.

Remove the footbrake putting it on the rear or front wheel, or both.

(1) Mount inside the brake drum damping rings, introducing friction into oscillation of the brake drum.

(2) Spring coupling between engine and gear box combined, with friction in such coupling.

(3) Mount the brake drum between friction with positive drive.

(3)
These seem all normal
FHR

F.{Mr Friese} H.{Arthur M. Hanbury - Head Complaints} R.{Sir Henry Royce}
OSGEO (EITES 'OFIX' (H OZ) SES 'N'H
  
  


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