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 for a Relief Valve for a Tecalemit Oil Filter.
| Identifier | ExFiles\Box 135\3\ scan0048 | |
| Date | 18th March 1932 | |
| OUTLET .750 1.500 .562 SPRING. COMPRESSED LENGTH 1.500 " FREE " 2.700 " COMPRESSED LOAD 29 OZS. " RATING 24.2 OZS/IN .075 INLET .500 .250 4 HOLES EQUALLY SPACED .125 DIA. RELIEF VALVE - TECALEMIT OIL FILTER. 18.3.32 M.B. | ||