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).
Requesting a method to distinguish positive and negative leads on non-armoured heavy current cable.
| Identifier | ExFiles\Box 24\2\ Scan203 | |
| Date | 25th June 1920 | |
| To Da.{Bernard Day - Chassis Design} from EFC. c. Da{Bernard Day - Chassis Design}/Thr. c. By c. By/HEB.{H. Biraben} X.2778c - MODIFIED GLOVER WIRING. BATTERY CONNECTIONS OF HEAVY CURRENT CABLE. On the modified Glover wiring in which the heavy current cable is not armoured, the method of marking the two ends positive and negative, as applied to armoured cable for the previous series, is not applicable. As it is very essential that the two leads shall be distinguishable from one another, would you kindly arrange some method by which such distinction of positive and negative cable is effected. Instructions on this point are rather urgently required by Mr. Bailey's Office. EFC. [Handwritten annotations: 'Xe' at top, a large 'X' crosses out the main text, and extensive shorthand notes are present in the right margin and at the bottom.] | ||