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).
Simple modification to cure noisy petrol pumps.
Identifier | ExFiles\Box 149\1\ scan0254 | |
Date | 11th July 1936 | |
HOTEL DE FRANCE. CHATEAUROUX. Indre. France. GWH{George W. Hancock - Head Chateauroux}/I4/JAB. 11th July 1936. To. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Re. Noisy Petrol Pumps. I am enclosing a sketch of a simple modification to the top blade of the contact which cures noisy petrol pumps. Its functioning is to deaden the armature thud, in the same manner to that I have previously reported but is much simpler and can be done in a few minutes. We are indebted for this investigation and cure, to the Paris Depot electrician who I have had helping me on the subject. They should be quietened when hot as they become noisy after heating up. Cricklewood and Kingsbury should be notified. ----------------- G.W.H. | ||