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).
Insufficient thread depth on Lockheed Girling hydraulic brake cylinders, requesting a drawing alteration and parts modification.
| Identifier | ExFiles\Box 109\1\ scan0092 | |
| Date | 30th December 1938 | |
| 666 also 1029. To Da.{Bernard Day - Chassis Design} c. to HPS.{Horace Percy Smith - Experimental Factory Mgr} Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems}11/JH.30.12.38. Lockheed Girling Hydraulic Brake Cylinders. GE.4178. We find that the depth of thread for the bolt attaching the Banjo on the rubber hose to thecylinder is insufficient. This is due to an alteration on the Lockheed fittings which where not shown on the drawing supplied to us. Will you please make the necessary alteration on the drawing. A cylinder fitted with the parts required is available in order to arrive at the right dimensions. Will HPS.{Horace Percy Smith - Experimental Factory Mgr} please have all the existing pieces modified before fitting to chassis including those fitted to 30.G.VI. Rm{William Robotham - Chief Engineer}/JBD.{John B. Dixon - Fuel Systems} | ||