Secret memo regarding modified metering plugs for Spectre auto-adjusting tappets.
| Identifier | ExFiles\Box 96\2\ scan0051 | |
| Date | 9th August 1935 | |
| x354 BY. {R.W. Bailey - Chief Engineer} c. RHG. Hs {Lord Ernest Hives - Chair} /Rm. {William Robotham - Chief Engineer} SECRET. Spectre(Codename for Phantom III) - Auto Adjusting Tappets. We send you herewith:- LeC.4633 showing modified metering plugs for the above. Experience has shown that silting up has occurred at the metering annulus. The above scheme shows the end of the plug made a fit in the hole, the metering now being determined by the sizes of the holes in the plug. Drawing to BY. {R.W. Bailey - Chief Engineer} Blueprint to Hs {Lord Ernest Hives - Chair} /Swdl. {Len H. Swindell} E {Mr Elliott - Chief Engineer} /JNR. {Charles L. Jenner} Handwritten text: G.L. Smith. Hartley bound outward (struck through) Rm {William Robotham - Chief Engineer} (signature) Rm {William Robotham - Chief Engineer} (signature) 17-8-35 Rm. {William Robotham - Chief Engineer} Details were issued to Exp Dept on 17.8.35 ROS | ||
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).