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).
Criticising a report on broken crankshafts for lacking crucial details about the condition of the shafts before testing.
| Identifier | ExFiles\Box 38\6\ Scan048 | |
| Date | 6th February 1919 | |
| ROLLS-ROYCE, LIMITED WORKS OFFICE IN U. S. A.{Mr Adams} 220 UNION BLDG., EUCLID AVE., CLEVELAND, O.{Mr Oldham} Handwritten note: Mr Hives, please reply to Na.{Mr Nadin} Return this with notes once to F.{Mr Friese} 10/2/ TO: C.J. (Copy to K.M.) FROM: Na{Mr Nadin} SUBJECT: BROKEN CRANKSHAFTS. DATE: February 6, 1919. REFERENCE: Na{Mr Nadin}3/K6219. With reference to Mr. Hives' sheet EH3/LG13119 re the above subject, in which he states that both of the American crankshafts which he has tested up to the present, have broken in running, the memo is extremely unsatisfactory as at present written because he does not tell us whether the shafts he has been running were shafts in which we had detected cracks or hairlines and were desirous of having same tested to ascertain as to whether such cracks were dangerous or not. If the shafts are ones which were thought to be good by us here, then the matter may be serious but if they are shafts which we recognized as bad ones and which were sent to Derby merely for the purpose of testing, then Mr. Hives' sheet is of no importance. I think he should re-write his report giving a statement as to the kind of shafts they were when he commenced his test. He should also give us the Tensile tests, Brinnell figures, Stanton tests, and the number of the shaft in each case. Without such information the report is worse than useless because it is disquieting without allowing one to judge whether there is any reason for alarm. (Signature of Na{Mr Nadin}) Na{Mr Nadin}/K | ||