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).
Various insulating materials and the supply of a moulded ignition switch rotor.
| Identifier | ExFiles\Box 39\3\ Scan039 | |
| Date | 15th May 1921 | |
| X.3613 To R.{Sir Henry Royce} from Hs.{Lord Ernest Hives - Chair} c. to CM. c. to En. c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to Ey. Hsl/LGC.3.21. X.1109 - RE INSULATION MATERIAL X.2494. X.3513. X.4186. Attached herewith are pages taken from a recent American publication of the "Automotive Industries" which give information on insulating material. It will be seen by these that there are quite a number of materials in use in the U.S.A. similar to Bakelite. I believe the coil cases at Springfield are made from Condensite. It will be seen from the Condensite advertisement that they are prepared to supply to manufacturers who have their own moulding plant. We are sending to you a rotor for the R.R. locked ignition switch which we have moulded in Beldalite (in the experimental Dept.) which we obtained from the "atford Company. Hs.{Lord Ernest Hives - Chair} SSDS 'D.{John DeLooze - Company Secretary} 15-5-21 '300 H.S. (L. 20) 1409 R R | ||