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).
Distortion test results for a forked connecting rod and bearing under a 5,000lb load.
| Identifier | ExFiles\Box 93\1\ scan0125 | |
| Date | 3rd December 1936 | |
| PH III FORKED CONNECTING ROD EX21235 DISTORTION TEST LOAD APPLIED 5,000lb BEARING EX22402/3 ROD DEAD SIZE ON TEST BAR | | A to A | B to B | C to C | E to E | D to D | F to F | |---|---|---|---|---|---|---| | BEFORE LOADING | 2.5015 | 2.4998 | 2.4965 | 2.5012 | 2.5007 | 2.4994 | | AFTER LOADING | 2.5019 | 2.4995 | 2.4968 | 2.5025 | 2.4985 | 2.4975 | | DISTORTION | +0.0003 | +0.0003 | -0.0012 | +0.0013 | -0.0022 | -0.0019 | .0025" DIAMETRICAL CLEARANCE ON TEST BAR. | | A to A | B to B | C to C | E to E | D to D | F to F | |---|---|---|---|---|---|---| | BEFORE LOADING | 2.5018 | 2.4995 | 2.4968 | 2.5025 | 2.4985 | 2.4975 | | AFTER LOADING | 2.503 | 2.4972 | 2.4985 | 2.4992 | 2.5018 | 2.499 | | DISTORTION | +0.0012 | -0.0023 | +0.0017 | -0.0033 | +0.0033 | +0.0015 | .0025" DIAMETRICAL CLEARANCE BEARING IN POSITION | | A to A | B to B | C to C | E to E | D to D | F to F | |---|---|---|---|---|---|---| | BEFORE LOADING | 2.1257 | 2.1244 | 2.124 | 2.1249 | 2.1243 | 2.1239 | | AFTER LOADING | 2.124 | 2.1241 | 2.1241 | 2.125 | 2.1241 | 2.1242 | | DISTORTION | -0.0017 | -0.0003 | +0.0001 | +0.0001 | -0.0002 | +0.0003 | Diagram annotations: DOTTED LINE SHOWING BEARING IN POSITION JOINT IN BEARING | ||