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).
Letter from General Motors regarding the blueprint for a ball valve installation in a silent tappet.
| Identifier | ExFiles\Box 17\6\ Scan279 | |
| Date | 6th July 1934 | |
| GENERAL MOTORS CORPORATION DETROIT, MICHIGAN July 6, 1934 x7060 Mr. W. A.{Mr Adams} Robotham Rolls-Royce Ltd. Derby, England Dear Mr. Robotham: Thanks for the blueprint of the ball valve installation in the silent tappet. I can't find anything to criticize in the assembly as shown on the print. It looks like a very good job and I am glad to hear that it is working well. Thanks again for your courtesy. Sincerely yours Geo. E.{Mr Elliott - Chief Engineer} A.{Mr Adams} Hallett Head, Power Plant Section Research Division. | ||