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).
The eccentric screw adjustment mechanism for ignition contact breakers.
| Identifier | ExFiles\Box 61b\1\ scan0067 | |
| Date | 31th October 1929 | |
| X 4041 To R.{Sir Henry Royce} from EFC. c. Sg.{Arthur F. Sidgreaves - MD} c. Ey. EFC7/AD31.10.29. IGNITION CONTACT BREAKER ADJUSTMENT The majority of other makes of battery ignition contact breakers now employ an eccentric adjustment of the contact points which needs a screwdriver only to effect adjustment. Both contact points are riveted securely.to their respective pieces. To effect adjustment one screw is released and subsequently retightened. Another screw is turned, and by means of an eccentric action, moves the base carrying the fixed contact point. The arrangement appears to allow of greater accuracy and simplicity of adjustment. EFC. | ||