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).
Assessment on the suitability of the Perrot front wheel brake system, suggesting an investigation into the alternative Hotchkiss system.
| Identifier | Morton\M1.A\ img007 | |
| Date | 1st November 1921 | |
| To CJ. from R.{Sir Henry Royce} Copy to AJ. " " HS.{Lord Ernest Hives - Chair} ORIGINAL 3 R5/G3/11/21. RE FRONT WHEEL BRAKES. X4428 X1575 I had suggested that to facilitate this matter Perrot might send us a Delage axle to rig up on one of our cars. I find this would be useless, and to fit to our cars would be impossible. Owing to the big steering lock, and to the use of more flexible springs on the front of our cars, we find that the range of motion is really too great for the distance it is possible to obtain between the brake drum and our frame sides. We do not consider, therefore, that the Perrot system is suitable for our chassis, and at the moment we are inclined to favour a system of operation similar to that used by the Hotchkiss Company. It would be as well, however, to find out what licensing fees Perrot would demand for the use of his patent, which is a very little piece of the whole thing, and consequently extremely small piece of the whole chassis. Also, it would be advisable to find out whether the Hotchkiss have a patent for their design of operation, and if so, whether it is possible to get a license for using it. R.{Sir Henry Royce} [STAMP: RECEIVED F.C. NOV] | ||