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).
List of suggestions for the improvement of the operation of platinum or tungsten contact points.
| Identifier | ExFiles\Box 61b\1\ scan0051 | |
| Date | 23th September 1927 | |
| X24041 EFC/T23.9.27. VARIOUS SUGGESTIONS FOR IMPROVEMENT OF OPERATION OF PLATINUM OR TUNGSTEN CONTACT POINTS. (10) Altered position of contact breaker points in relation to cam. (11) Running ignition with distributor removed. (12) Reynold points on Delco-Remy contact breaker. (13) Increased mechanical contact pressure. (14) Double or maximum value condenser. (15) Periodic reversal of current. (16) Reversal of direction of running contact breaker. (17) Running at various speeds. (18)+ Platinum points on Delco-Remy. (19) U.S.A.Bosch distributor,coil and condenser. (20) U.S.A. " " RR coil, ballast and condenser. (21) New lever with off-set position giving slow make and quick break. (22) Mushroom type H.T. rotor for protection from gasses. (23) Slow make quick break cam. (24) Comparative life of U.S.A. Bosch and Remy points. (25) Three-part cam. (26) Still finer primary coil. (27a) HEW's suggestion for scrubbing action modified by RD. (27b) Scrub for tungsten and alternative springing. (27c) Simpler scrubbing action. (28) E.J.B's reduced core coil. (29) Insulated lever, earthed point. (Contd). | ||