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).
Insufficiently countersunk rivets on clutch driven plates from supplier Borg & Beck, and the agreed future specification.
| Identifier | ExFiles\Box 129\1\ scan0102 | |
| Date | 7th January 1937 | |
| R 1110 To RBy. c. to RHC.{R. H. Coverley - Production Engineer} c. to Mr. Goodall. c. to Roy.{Sir Henry Royce} Rm{William Robotham - Chief Engineer}/Smth.5/JH.7.1.37. Borg & Beck. We have recently been receiving from Borg & Beck clutch driven plates of which the rivets have not been countersunk sufficiently deeply to accomodate reasonable wear of the facings. Borg & Beck have agreed that in the future the depth of the rivet head below the surface should be .040 ± 5, and plates should be inspected for this dimension. Rm{William Robotham - Chief Engineer}/Smth. | ||