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 for an experiment on a newly designed coil with less iron in the magnetic circuit.
| Identifier | ExFiles\Box 69\1\ scan0055 | |
| Date | 25th June 1927 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 481-8-12-24) MP 306975 X8710. ROLLS-ROYCE LTD. INSTRUCTIONS. To: E.7.b. Order No.: WC26 Customer's No.: Coil made up without the ends of the iron core bent over i.e with less iron in the magnetic circuit. This coil designated L.I has been made up by Mr. Brock for experiment on the life of the battery ignition contacts. Apparently there is also an advantage in assembling coils in this manner on production. The coil we have in the lab has been tested on the bench for the purpose of ascertaining the various electrical quantities which are as follows:- Signed: (contd) This Sheet must be filed on completion of the work. | ||