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).
Report comparing the production of mouldings using 'Elo' powder versus Bakelite, referencing supplier visits.
| Identifier | ExFiles\Box 39\3\ Scan117 | |
| Date | 30th June 1921 | |
| BY3-P30.6.21. contd. - 2 - branches of the production they will be directly responsible for the production of good mouldings at our Works, and therefore I have arranged a visit to their Works to inspect their plant and methods in order to obtain first hand information of possibilities of the Company, and check whether the samples submitted, which were very good, represent an ordinary product in production. It is evident that the use of "Elo" powders and steam presses is some little distance away at the moment and therefore we shall have to continue using Bakelite so long as we carry on with our present method based on the Lucas scheme of using a jack for pushing up the mould, since it is most probable that the Elo powder may be considerably more sensitive to heat variations than bakelite appears to be, as we certainly have no trouble with Bakelite at the moment when using gas rings, but of course, this is not a guarantee that it would be equally true of Elo powders. Mr F.E. Birkby who visited our Works, actually spent a considerable time in the Bakelite factory in U.S.A. obtaining first hand information. He is thoroughly versed in the methods of producing Condensite as well, as he spent considerable time also where that was produced. It will probably interest you to know that the Klaxon Horn Commutators are now being produced by the above Company as mouldings in Elo powder, and they have recently received orders for all the insulated parts of the Klaxon Horn, as a result of tests which were put in hand due to our complaint that their insulation was too soft. contd. | ||