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).
Request to modify a dynamo armature by using a thicker wire and widening the slots.
| Identifier | ExFiles\Box 62\3\ scan0380 | |
| Date | 31th July 1933 | |
| x6037. RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Wst. Hs{Lord Ernest Hives - Chair}/Wst.7/MA.31.7.33. 20/25 VOLTAGE REGULATED SHUNT DYNAMO TO R&R Sch.344. Will you please have one of the armatures belonging to the two dynamoes to the above scheme we are now testing, wound with 16 SWG. wire instead of 17 SWG. as at present. The slots will have to be widened to .181" and the depth increased to .578" in order to accomodate the thicker wire. We anticipate a big increase in output with this modification. Hs{Lord Ernest Hives - Chair}/Wst. | ||