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).
Graph plotting leakage rates for various shock absorber valve designs and part numbers.
| Identifier | ExFiles\Box 55\4\ Scan349 | |
| Date | 22th June 1928 | |
| CU. INS/SEC. F 74570 SOLID. SHOCK ABSORBER VALVE LEAKAGE. CU. INS./SEC. AT 18 3/4 LB/SQ.IN. A12292 DRILLED 2 FLATS A12295 DRILLED 2 FLATS CROSS HOLE .850 FROM HEAD. A12294 DRILLED 2 FLATS CROSS HOLE .650 FROM HEAD. A12293 DRILLED 2 FLATS CROSS HOLE .450 FROM HEAD. A12217 SOLID ONE .031" SLOT. A12306 SOLID ONE .047" SLOT. A12180 SOLID TWO .031" SLOTS. A12181 SOLID TWO .047" SLOTS. Curve data points: (.38), (.48), (.53), (.80), (1.2), (1.6), (2.18), (2.67) X-Axis Labels: 0, .5, 1.0, 1.5, 2.0, 2.5 CY. JUNE 22 '28 EUGENE DIETZGEN CO., CHICAGO-NEW YORK NO. 346 B A12322 | ||