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).
Request to assemble half-a-dozen contact breaker fingers for testing, listing the standard parts required.
| Identifier | ExFiles\Box 61b\1\ scan0211 | |
| Date | 2nd February 1938 | |
| 6118. To HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} BY/RD.6/B.2.2.38. Contact Breaker Fingers. Will you please have made up into complete fingers so that Rm{William Robotham - Chief Engineer}/RC.{R. Childs}, can institute a test, half-a-dozen contact breaker fingers to the following standard pieces. D.74171 - Rivet. 1 off. D.74167 - Finger. 1 off. D.74172 - Distance Piece. 1 off. D.74173 - Rivet. 1 off. D.75149 - Bush. 1 off. D.75148 - Earth Connection. 1 off ) Phantom III. D.76205 - Rocker Block. 1 off ) DB.{Donald Bastow - Suspensions}1724 - Earth Connection. 1 off.) Bentley or 25/30 HP. D.76202 - Rocker Block. 1 off.) The rubbing blocks for these fingers are to the new design, samples of which are attached herewith. BY/RD. | ||