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).
Observations on machine noise related to bearing condition and dynamo performance.
Identifier | ExFiles\Box 36\4\ scan 147 | |
Date | 24th January 1919 | |
RR.300 (120B) (SF 349 24-1-19) MP 200552 ROLLS-ROYCE LIMITED. INSTRUCTIONS. 91420 To ___________ Order No. ___________ Customer's No. F.C.94. Re ___________ IV 19__ The observations already described were made on a machine with good bearings. A machine was afterwards put on which had loose bearings. This machine did not sing badly & we could not make it do so under any normal conditions. (It did of course sing with a fully advanced control brush but this will always happen with any of these dynamos). Signed: PM This Sheet must be filed on completion of the work. | ||