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).
Preference for riveting over soldering cutout contact points and proposing a test.
| Identifier | ExFiles\Box 50\1\ Scan116 | |
| Date | 22th March 1926 | |
| X4105 To EY/RD. from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 1/T22.3.26. RE CUTOUT CONTACT POINTS. Reference your EY/RD3/14L15.3.26, we do not like the idea of soldering these contact points to their blades, and have the impression that on one occasion when the matter previously arose, Mr. Bailey was averse to that procedure. Solder is not a particularly good conductor of heat, and should the points once rise to a high enough temperature to melt the solder, the solder would oxidise and the last state of affairs would be worse than the first. We think it would be much better to insist upon a really good riveted job, but we have no objection to making the test on the box which you have had fitted up in this manner. Before we could be satisfied in the matter, we should want to see 10,000 miles run - preferably on both 40/50 and 20 HP. chassis. Your mention of several cases of trouble due to contact points - we are not aware of any trouble in this direction. In our own experience there is no trouble, due to faulty riveting. Is the riveting done here or by the makers of the points? If the latter, we may be getting better results from Messrs. Reynolds, whose points are now standardised. EFC. {E. Fowler Clarke - Electrical Engineer} | ||