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).
10,000-mile bench test of a contact breaker lever with a bone grey fibre rubbing block.
| Identifier | ExFiles\Box 69\1\ scan0358 | |
| Date | 15th December 1924 | |
| RR 238 (150 BKS.) (SH57. 29-6-20.) MP 224358 X4646 2 UL' ROLLS-ROYCE LTD. INSTRUCTIONS. To E.Y.b. Order No. WA{Mr Wallis} 98 Customer's No. X4646 10,000 miles bench test of contact breaker lever fitted with Bone grey fibre (2ND sample) and standard platinum points The above contact breaker lever has now completed a 10,000 miles run on our standard distributor in the lab. The usual cam lubrication was omitted in this instance so that a comparison of the wear of the bone grey fibre rubbing block could be obtained unlubricated. The dimensions of this block were carefully observed before and after the run, the maximum wear being .004" Signed: Continued This Sheet must be filed on completion of the work. | ||