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).
Log sheet detailing tests and remarks on electrical contacts and rods from various suppliers.
| Identifier | ExFiles\Box 35\6\ scan 070 | |
| Date | 27th September 1920 | |
| -2- Contd. Ref. Letter. | Firm. | Contacts or rods. | Description. | Remarks. ---|---|---|---|--- H | Ind: Lamp & Wire Company. | C (.125" dia). | For L.T. contacts. | Fitted to blade and screw of battery ignition. Run 6 hours on bench O.K. Fitted to 49-GB and another pair to 4-EX. Pts. from 49-GB afterwards put on 6 EX but not O.K. Points on 4 EX also not O.K. See EFC1/AT27.9.20. Pts. sent to R.{Sir Henry Royce} for inspection. I | " | R (.109" dia). | For L.T. contacts. | Expl. shop unable to work into contacts. J | Fansteel Company. | R (.093" dia.) | For distributor sparking points. | X.3309W. Tests in hand. Running on bench 5.5.21. after 7.5.21 Handed Hs.{Lord Ernest Hives - Chair} for R.{Sir Henry Royce}/400 hrs. bench test. Reptd. EFC4/T7.5.21. K | " | R (.069" dia). | Ditto. | Too small diameter for use. L | " | R (.160" dia.) | For L.T. contacts. | Expl. shop unable to work into contacts. M | Liberty Delco. | C | L.T. contacts from Delco Liberty dist: | Fitted to 4 EX 24.9.20. Gone to U.S.A. No report available N | " | C | " | Running on bench test. Reported 21.1.21 AA.{D. Abbot-Anderson}40. O | " | C | " | Sent to R.{Sir Henry Royce} for test) No report EFC8/T24.9.20 ) available. P | Tungsten Mfg. Co. | C | Tungsten contacts fitted to blade and screw by T.M.Co. | Marked 2) Reported 28.5.21. AA.{D. Abbot-Anderson}62 Bench. Run 500 hours. Q | " | C | " | " Tests. (Sparking test) " Reported 25.5.21 AA.{D. Abbot-Anderson}62. R | " | C | " | " 6.1.21. Expl. Eer 2EX No report available. | ||