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).
Instruction sheet detailing an experiment with various varnishes on battery ignition distributor moulded heads to prevent tracking.
| Identifier | ExFiles\Box 39\3\ Scan299 | |
| Date | 27th March 1928 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12 x4) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.F.C. Order No.: WC 92 Customer's No.: Varnished Battery ignition distributor moulded heads. We have a number of battery ignition distributor heads varnished on the inside surface with various varnishes as an experiment on the capability or otherwise of these varnishes to prevent tracking across the surface. The various varnishes used are "Armacell", "Packyderm", shellac, "Marconite", "Elo" and a varnish made up by Mr Brock of synthetic rezin dissolved in alcohol. We do not consider however that the last three named will be very effective as presumably they all Signed: (cont'd) This Sheet must be filed on completion of the work. | ||