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 a consulting engineer regarding a patent misunderstanding, enclosing further patent documents and discussing engine balancing principles.
| Identifier | ExFiles\Box 147\1\ scan0298 | |
| Date | 12th November 1937 | |
| 1247 Rm{William Robotham - Chief Engineer}'s copy reply handed to Lid{A. J. Lidsey} 23/11/37. GEORGE A.RUBISSOW, CONSULTING ENGINEER. Mount Royal, MARBLE ARCH, W. 1. Tel. Mayfair 8040 Extension 449. November 12th, 1937. Attention Mr. Robotham & Mr Y.D. Pearson. A.{Mr Adams} G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Elliott Esq., Chief Engineer, Messrs. Rolls Royce Ltd., DERBY. Dear Sir, My Company in Paris has duly received your letter and I note that there appears to be a misunderstanding with regard to our Patents. I hope that you have studied our English Patents Nos. 401,962 and 439,768, and I am sending you herewith additionally notices re these Patents as follows:- Memo. Nos., 4, 17, 18 and 47 which will entirely clear up the whole Patent question - also memo. No. 31 which we very much recommend for your first study. These documents are unique and I shall be greatly obliged if you desire to keep them, if you will kindly make a copy and return the originals to me as soon as possible. If your organisation has any doubts about the SARAZIN Patents I would greatly appreciate if you would study the Chenard Walker Patent which I mentioned in my letter of October 3rd No. (French) 632017, 4th July, 1927 taken out by Chenard Walker where Mr. Sarazin has been employed, so that he ought to know the contents of this patent. This Patent entirely and fully anticipates the SARAZIN Patents and Mr. SALOMON has asked for a complete annulation of the French and German SARAZIN Patents in France and Germany. There is no doubt that right will be done. You probably know that the Wright Aeronautical Corporation as well as the Bristol Aeroplane Co., Bristol, England, have carefully studied the SALOMON Patents before concluding an agreement with us and paying a very considerable amount of money. As to your last question about the "practical application of the SALOMON Balancing principles to an engine with a six throw crankshaft", I wish to inform you that it is extremely easy and handy, not only for aviation, but for any motor in line, and if not sufficient space is offered by the throw crank-shaft of the counter balance, then this difficulty is also very easy to eliminate by using metals having a specific gravity instead of 7.5 of the generally employed steels, about 15 or 16 where Tungsten metal is used. If you wish to have more details about this particular question may we please have full particulars and drawings re the six throw crankshaft. The experience which SALOMON has in this kind of engine is even more satisfactory than the Star engine. I would greatly appreciate if you would kindly acknowledge receipt of the enclosures and fix an appointment for the middle of next | ||