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).
Testing special low carbon steel for a Bentley starter motor pole.
| Identifier | ExFiles\Box 62\1\ scan0194 | |
| Date | 6th November 1933 | |
| 86134. WST RHC{R. H. Coverley - Production Engineer} (struck through) c - Hs{Lord Ernest Hives - Chair}/Wst. BY/RD2/W.6.11.33. Bentley Starter Motor. Frame and Field Winding. Sec.8030. Special Low Carbon Steel. We hand you herewith two blue prints of :- DB.{Donald Bastow - Suspensions}448 - Pole for Starter Motor, and also one 17½" x 1.11/16" x ¼" piece of steel, suitable for making a set of the above poles. Will you please have these put in hand and fitted to an existing Bentley Starter Motor to enable the performance to be judged to the change in material. The material is Mills' .100 Carbon and is considered better magnetic material than 'Ubas'. BY/RD [Signature] | ||