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).
Inspection notes on a series coil bobbin and cut-out, detailing defects and test results.
| Identifier | ExFiles\Box 70\3\ scan0217 | |
| Date | 8th December 1924 | |
| RR 258 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12-24) VP 306975 ROLLS-ROYCE, LTD. INSTRUCTIONS. To_________________________19__ Order No._________________ Customer's No. 2 The series coil bobbin is not properly screwed down on to the base. It is not loose however, and it is unlikely that this defect has interfered with the working of the cut-out. There are some specks of foreign matter in the gap between the armature and shunt-coil pole-tip. These sometimes, if magnetic or sticky upset proper working. The cut-out carried 10.0 amperes for 5 minutes satisfactorily. Note. The fixed point was wedged down for test. When screwed down tightly the reverse falling out current would probably be higher Signed FPA. This Sheet must be filed on completion of the work. | ||