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).
Instructions regarding the testing of a petrol-proof instruction plate for a Watford RO1 magneto.
| Identifier | ExFiles\Box 57\2\ Scan185 | |
| Date | 2nd November 1927 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X5790² ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.b. Order No.: WC46 Customer's No.: X Instruction plate on Watford RO{C. C. Rose - Export Manager}1 magneto On the occasion of his last visit to the works Mr North handed to us six of the above plates as fixed on the top of the R.O.1 magnetos. Complaint had been made that petrol drawing from the Autovac when cleaning it out had obliterated the enamelled instructions on these aluminium plates and these six were printed on, treated, so as to be petrol proof. We immersed two of these plates in petrol for 24 hrs at the end of which they appeared quite OK and could be rubbed briskly with a rag without any obliteration of the print. Signed: H.E.W. This Sheet must be filed on completion of the work. | ||