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).
Copy of a telegram from Mr. Royce regarding a solution for piston tightness.
| Identifier | ExFiles\Box 171\3\ img035 | |
| Date | 15th March 1920 | |
| COPY OF TELEGRAM RECEIVED FROM MR. ROYCE. 15.3.20. CLAUD JOHNSON ROLHEADRolls-Royce telegram address REG LONDON. WE HAVE APPARENTLY FOUND DEFINITE SOLUTION FOR MADDOCKS COMPLAINT AS TIGHTNESS OCCURS THROUGH CARBON DEPOSIT ABOVE RING (STOP) PISTONS HAVE TO BE TURNED WITH EXTRA CLEARANCE OR ANOTHER RING FITTED HIGHER UP LATTER IS PREFERRED AND RECOMMENDED KINDLY ADVISE DERBY OF YOUR APPROVAL OF THIS MODIFICATION WHICH AT LEAST IS BETTER THAN THE RISK OF CARBON DEPOSIT MAKING TIGHT PISTONS UNDER HEAVY LOADS AFTER LONG RUN. ROYCE. | ||