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 detailing the results of a wear test on an unlubricated rubbing block.
| Identifier | ExFiles\Box 69\1\ scan0352 | |
| Date | 21th October 1924 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.G. Order No. W.A 88 Customer's No. X 4646 Wear test on Bone grey rubbing block (1st sample) unlubricated. A 10,000 mls run on our rig has now been completed with the above unit unlubricated. On examination at the end of this run the rubbing block appeared in a thoroughly satisfactory condition. The measurements before running were .253" top and .255" bottom and on taking measurements after the run they were the same. From this it appears Signed contd This Sheet must be filed on completion of the work. | ||