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).
Blueprint of a rocker pillar bush with dimensions and material specifications.
| Identifier | ExFiles\Box 96\2\ scan0182 | |
| Date | 1st December 1926 | |
| RM{William Robotham - Chief Engineer} 267 1.047 +5 UNDERCUT 1.062 DIA -5 .524 .100 WIDE .550 +5 1.123 DIA -1/2 .9697 DIA +1/2 .025 DIA HOLE 8 HOLES DRILL .062 DIA +10 45° CHANFER BOTH ENDS .025 DEEP 16 OIL GROOVES EQUALLY SPACED .035 DEEP .050" WIDE .890 +10 16 OIL GROOVES .890 LONG AND .035" DEEP +5 PLAIN PORTION .078 6 OFF MATERIAL BRASS BUSH ROCKER PILLAR RM{William Robotham - Chief Engineer} 267 K Scholch 1/12/26 | ||