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).
Two schemes for ignition wire fittings on the 40/50 HP chassis.
| Identifier | WestWitteringFiles\C\May1919\ Scan31 | |
| Date | 1st May 1919 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} Copy to C.J. " " BN.{W.O. Bentley / Mr Barrington} " " BY.{R.W. Bailey - Chief Engineer} " " EPC. X.3474 ORIGINAL. E1/C31/5/19. 2 RE 40/50 H.P. CHASSIS - IGNITION WIRE FITTINGS - E.17146. RECEIVED We send you herewith Lec.1098 illustrating the methods of treatment to be applied to the ignition wires between the main wiring tube and the distributor. Scheme 1 is for use on immediate production. The pieces required for this scheme should be easily and quickly obtainable. Mr. Royce does not approve of the use of the so-called tennis rackets,(the standard fittings we had in the past for the trembler battery ignition) on any of our new production chassis, as it is quite inconsistent to separate the wires one from the other with these tennis rackets after bunching them together in a single tube. In scheme 1 arms of channel section which will appear to be of box form, are used to hold the bundle of wires through the medium of two bakelite bushes. For immediate requirements these bushes can be made in any other suitable insulation, but it is desired to make them in bakelite with formed threads, as soon as possible. The bushes may be secured if necessary, with pins, as shewn in the sketch. Referring to scheme 2. this should be adopted, say, after 500 chassis. Similar aluminium arms are used of channel formation, but in this design they are made with caps, which are used to clamp an aluminium tube formed in two halves, the joint in the tube lying at right angles to the splits of the caps. The halves of the aluminium tube should be lined with a coating (Contd.) | ||