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).
Alternative design scheme for Bentley ignition coils and their associated switching.
| Identifier | ExFiles\Box 164\5\ img206 | |
| Date | 4th June 1934 | |
| s6017 WST What exactly is this scheme Rm{William Robotham - Chief Engineer} W/S. To Sg.{Arthur F. Sidgreaves - MD} from E.{Mr Elliott - Chief Engineer} E.2/HP.4.6.34. c.c. Wor.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair} By.{R.W. Bailey - Chief Engineer} CX.{Major Len W. Cox - Advertising Manager} Bentley Coils. ------------- Referring to Sg.{Arthur F. Sidgreaves - MD}7/E.31.5.34. we were never satisfied with the milled nut scheme and what we did was to instruct an alternative in which the two coils were mounted together on the wheelcase with a high tension quick change terminal wired up as per the scheme supplied to customer, and provision for changing over the two low tension leads from one coil to the other without tools, using milled nuts and spring washers with coloured cuffs on the terminals for identification. This scheme could go on production almost instantaneously and Hs.{Lord Ernest Hives - Chair} is issuing a standardisation sheet for it. We propose to proceed with a design for a simple neat switch to change over the L.T. but nobody likes for production purposes the two large coupled domestic tumbler switches which we supplied on the chassis you mention and we are anxious not to make it appear that our coil is expected to break down. As soon as possible the Bentley should have two entirely independent ignitions always in operation and the question of any stoppage due to ignition trouble should be quite remote and easily checked. E.{Mr Elliott - Chief Engineer} | ||