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).
Cables received from the USA regarding engine components, costs, and test results.
| Identifier | ExFiles\Box 173\1\ img379 | |
| Date | 19th February 1934 | |
| To Sg.{Arthur F. Sidgreaves - MD} From Hs.{Lord Ernest Hives - Chair} c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to Hy.{Tom Haldenby - Plant Engineer} c. to P. c. to lp.{Mr Lappin} Hs.{Lord Ernest Hives - Chair}6/MJ.19.2.34. The following cables have been received from RRC. in U.S.A. - 17.2.34. - "RECOMMEND WE OBTAIN ONE HALL GRINDING HEAD APPROXIMATE COST SIXTY POUNDS FOR USE CHASSIS CYLINDERS INVESTIGATING AERO CYLINDER PROBLEM CABLE INSTRUCTIONS. COVERLEY." - "HALF VALVE SEAT GRINDING EQUIPMENT GOOD RECOMMENDED PURCHASING ONE HEAD SUITABLE BOTH TYPES CHASSIS CYLINDERS APPROXIMATE COST SIXTY POUNDS CABLE INSTRUCTIONS STOP NOT SUITABLE AERO CYLINDERS INVESTIGATING STOP RETURNING INDIANOPOLIS. COVERLEY." 18.2.34. - "FEEL CONFIDENT BEARING DIFFICULTIES SOLVED STOP FURTHER SATISFACTORY TEST SATURDAY SEVENTY THIRTY PLAIN BEARINGS MODIFIED LUBRICATION CONSISTING EIGHT OIL HOLES ONE EIGHTH DIAMETER STOP COMPLETED THIRTY MINUTES THIRTY FIVE HUNDRED REVOLUTIONS OIL TEMPERATURE NINETY CENTIGRADE SEVENTY POUNDS PRESSURE BEARING CONDITION GOOD STOP NEXT PROPOSE FITTING SIXTY FORTY BEARINGS WITH GROOVES REPEAT TEST SIMILAR CONDITIONS STOP IF SUCCESSFUL CHANGE BEARINGS GROOVED SEVENTY THIRTY AGAIN REPEATING TEST STOP FINAL TEST INCREASING SPEED TO ASCERTAIN MAXIMUM PERMISSIBLE REVOLUTIONS STOP DO YOU AGREE OR HAVE YOU ANY ALTERNATIVES STOP THREE SETS MAIN BEARINGS DESPATCHED STOP ALLISONS CANNOT PRODUCE MARINE TYPE BEARINGS HAVE RETURNED SPECIAL METAL FOR DERBY TO PRODUCE SAME STOP RECOMMEND ALLISONS PRODUCE NINE FURTHER SETS KESTREL MAIN BEARING CABLE INSTRUCTIONS ALSO GIVE EXACT WORKS ELECTRICITY VOLTAGE. COVERLEY." Hs.{Lord Ernest Hives - Chair} | ||