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).
The comparative testing of various H.T. cables such as Gloverite, Super-Glover, Helsby and Maconitė.
| Identifier | WestWitteringFiles\S\March1928-May1928\ Scan156 | |
| Date | 2nd May 1928 | |
| EFC1/T2.5.28. -3- Contd. opinion on the new material. They said they could give us the same sort of thing, but thought we had not wanted anything better than we had got. They said they could give us their "Gloverite" or a better grade of the ordinary rubber covering. Later they paid us another visit, the result of which is that we have recently received samples for comparative tests of their Gloverite, and what we call the Super-Glover H.T. cable. We have now a sandwich system of these two with the standard Glover running on chassis 12-EX in France. We also obtained samples of Helsby cable for test. Returning to the Maconitė cable, we put further sets of this on cars and these have been gradually accumulating mileage. In reply to an enquiry sent to the Repair Dept., we received the following :- "We get little or no complaint of H.T. cables failing, but we realise how quickly the H.T. cable perishes due to heat, etc. A cable that will stand the heat and give a longer life would be an improvement. It is at the plug end the cables go first." We have now arrived at a time when, having got back all the sets of cables which have been run on experimental cars, we have also completed the subsequent H.T. and other tests on these cables. The various sets of cables to which we refer are as follows :- Contd. | ||