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).
Instructions to produce and fit a new High Pressure Valve Spring for the front hydraulic shock damper on the 20-HP chassis.
| Identifier | ExFiles\Box 55\4\ Scan002 | |
| Date | 13th January 1927 | |
| RHO C. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} 4235 BY/HEB{H. Biraben}2/M.13.1.27 20-HP. CHASSIS. FRONT HYDRAULIC SHOCK DAMPER SEC:7160 Herewith please receive two prints of:- F.54807 High Pressure Valve Spring. 2 off per chassis. Kindly produce and fit to Experimental Chassis. This Spring has been drawn to give 60 lbs. on the Ball Pin as arranged with Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} We are instructing this straight away on Production in place of Spring F.75148 which gives too high a load. Until the above Springs are available we have instructed the Works' to continue with F.75081 giving 80 lbs. on the Ball Pin. BY/HEB.{H. Biraben} APB RECEIVED 13 JAN 1927 | ||