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).
Instruction sheet on the condition of a sequence starter main and auxiliary switch unit.
| Identifier | ExFiles\Box 64\4\ scan0280 | |
| Date | 23th May 1929 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X7655 ROLLS-ROYCE LTD. INSTRUCTIONS. To E.7.C. Order No. WD{Mr Wood/Mr Whitehead}63. Customer's No. X7625 23-5-1929 Sequence Starter main and auxiliary switch unit B with mechanical interlock. This switch has now been removed from expl 38 chassis 18EX having been used over a mileage of 17150. The gaps on this switch were arranged to version A, giving a carbon interval gap. The condition of the main switch contacts were fair only burning of the coppers having taken place due to the imperfect operation of the main carbons. The relay switch contacts were in excellent condition. The wear on both the main and relay carbons was also quite reasonable. Signed H.E.W. This Sheet must be filed on completion of the work. | ||