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).
Notes and recommendations from the inventor regarding Truffault Shock Absorbers.
| Identifier | ExFiles\Box 19\2\ Scan018 | |
| Date | 29th March 1916 guessed | |
| TRUFFAULT SHOCK ABSORBERS. The following are certain notes and recommendations which have been made by the inventor.- -------------------------- Please do not dismantle the Shock Absorbers intended for the Chassis, because they are filled with grease; the assembling is not difficult. The body of the apparatus being filled with grease, which finds its own level on tightening the twelve screws. The fine collar turned on the face of the body, makes a joint against the cover when the screws are in place, and the brass nut screws tightly against a leather washer to ensure a good joint. The dismantling of the box containing the working parts is rather disagreeable on account of the grease therein, and which is also unnecessary as I have sent you one dismantled for your examination. You will find the necessary tool for opening the larger of the two brakes, and for closing the smaller one. The larger brake is made of Cast Iron (fine grain), but its tension is limited. The piece of wrought iron, which I put with the parts sent to you, is a template limiting the opening of the brake to allow the entry of the toothed wheel, without which it is possible to overstep the safe limit, and perhaps result in the brake being broken, which, of course, must be avoided. On the scale drawings you have received from Messrs Peugeot, you will find on the small toothed wheel a difference of 2 mm in width to prevent distortion, and consequently the guide of the box will have to be opened out accordingly. The depth of the teeth will thus be shorter by one millimetre, but they are deep 762 | ||