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 for a modified rotor blade assembly with an integrated bakelite fan projection.
| Identifier | ExFiles\Box 163\7\ img200 | |
| Date | 8th December 1924 | |
| RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 451-8-12-24) MP 306975 ROLLS-ROYCE LTD. INSTRUCTIONS. To Contd Order No. Customer's No. Rotor & Blade The rotor moulding is the same as fitted to all of the new double breaker distributors. but modified by fitting a bakelite projection on the underside to act as a fan. The rotor blade is a straight strip of pure nickel with the trailing edge deleted & it is secured to the rotor by one 5BA screw in place of the usual two. The fan and rotor are shown in the sketches below. PLAN OF ROTOR FAN PEGGED HERE 1.250 UNDER SIDE OF ROTOR .300 Signed J A Marshall. This Sheet must be filed on completion of the work. | ||