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).
Cable received from RHC detailing the results of tests on Allison grooved bearings in the U.S.A.
| Identifier | ExFiles\Box 173\1\ img237 | |
| Date | 8th February 1934 | |
| u.s.a. To Sg.{Arthur F. Sidgreaves - MD} From Hs.{Lord Ernest Hives - Chair} c.c. to Wor.{Arthur Wormald - General Works Manager} c.c. to R.{Sir Henry Royce} c.c. to By.{R.W. Bailey - Chief Engineer} c.c. to F.{Mr Friese} c.c. to lp.{Mr Lappin} The following cable has been received from RHC.{R. H. Coverley - Production Engineer} in U.S.A. "FURTHER SATISFACTORY TESTS ALLISON SEVENTY THIRTY GROOVED BEARINGS CONSISTING THIRTY MINUTES THIRTY FIVE HUNDRED REVOLUTIONS OIL TEMPERATURE NINETY CENTIGRADE SEVENTY POUNDS PRESSURE STOP FOLLOWED BY ADDITIONAL TESTS SAME BEARINGS CONDITIONS THIRY SECOND DURATION THIRTY FIVE HUNDRED REVOLUTIONS RESTORED NORMAL REVS REPEATED TWENTY TIMES TOTALING TEN MINUTES STOP MAXIMUM BEARING TEMPERATURE ONE HUNDRED TWELVE CENTIGRADE STOP CASE BEARINGS LOADED SEVENTY PURE COPPER GRANULATED THIRTY PURE LEAD GRANULATED ONE PER CENT SILVER ADDITION FOR COMPARATIVE RIG TESTS. COVERLEY." Hs.{Lord Ernest Hives - Chair} | ||