Instruction sheet detailing a test to reproduce misfiring conditions in American distributors using tungsten points.
| Identifier | ExFiles\Box 34\1\ Scan281 | |
| Date | 6th November 1918 | |
| RR 238 (300 Bks.) (SF 152. 6-11-18.) MP 197880 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To Order No. Customer's No. Z. misfiring at the spark-gaps set in and the contacts showed a slight resistance of about .05 w. An attempt has been made to reproduce the conditions of the American distributors in running a set of tungsten points. In this test, a set of points by the Fansteel Co, (A.F.) was used, with the blade insulated from the rocker-arm roller by a small piece of sheet fibre. A standard RR coil was used, without a ballast on 6 volts, and a Liberty paper condenser of .35 mf. capacity was connected across the points. Signed (Cont'd) This Sheet must be filed on completion of the work. | ||
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).