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).
Note on the endurance testing of oil bath tempered valve springs.
Identifier | ExFiles\Box 80\3\ scan0155 | |
Date | 5th June 1918 | |
Wor{Arthur Wormald - General Works Manager}/EH19/L16713. (contd) 2. File X.472 - Valve Springs tempered in oil bath. These have run 50 hours at 2000 revs without a breakage. [Watermark: DICKINSON BOND MADE AT CROXLEY] [Footer: R.R. 285A (150 H) (XX. 892. 5.6.18) E.P. 4888.] | ||