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 report on faulty 20hp dynamos from two different chassis.
| Identifier | ExFiles\Box 57\2\ Scan094 | |
| Date | 14th July 1924 | |
| RR 23B (150 BKS.) (SH57.29-6-20.) MP 224358 X5783do ROLLS-ROYCE LTD. INSTRUCTIONS. To: EFC Order No. AC.92 Customer's No. X4383 14. July 1924 Faulty 20 hp Dynamos. Nos. 671 (Chassis GF 46) and 235 (Chassis 5E.S.4) These machines which are of the 29 coil type were received from Jus Brock for our inspection. 671. The control brush setting of this machine is about 117° instead of 122° which would make the output high. The main brushes are worn, but still in working condition. The commutator wires are undercut but the solder has been thrown from the commutator spokes. There is no other sign of bad running, but the commutator and machine generally have been cleaned up before receipt by us. The commutator could not, (Contd) Signed This Sheet must be filed on completion of the work. | ||