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).
Information and drawings for the starting carburettor control on the 40/50 HP chassis.
| Identifier | WestWitteringFiles\G\July1921\ Scan34 | |
| Date | 4th August 1921 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} Copy to HS.{Lord Ernest Hives - Chair} BY.{R.W. Bailey - Chief Engineer} E.C. ORIGINAL F E2/G22/7/21. 2 AUG 4 1921 RECEIVED FC x4390 RE STARTING CARBURETTOR CONTROL - 40/50 H.P. We send you herewith drawings Lec.1426 and 1429 completing the information you require for the starting carburettor on the 40/50 H.P. chassis. We have already sent you drawing Lec.1418 shewing the body of the little starting carburettor itself. It should be understood that this piece can be applied to an existing floatchamber by making it with a joint face having cylindrical surface and radial screws. Lec.1426 shews the general arrangement of the mechanism for operating the starting carburettor from the instrument board, and gives details of the bell-crank lever and bracket required. This drawing also explains the operation of the starting or priming cock. The parts on the priming cock should not be used exactly as shewn, but a slight lap should be arranged in the running position to make sure that the cock is shut off. Also a suitable mark should be made on the cock plug and two marks on the body of the cock, to indicate the correct limits of travel. Drawing Lec.1429 shews the type of control it is desired to use in transmitting the motion from the instrument board to the dash. The scheme as given is made for "D" steering car similar to 6 EX. Mr. Royce would like you to make schemes adapting the pieces of the control to all classes of steering with the minimum amount of alteration in the number of parts. The fact that there are three different dashboards will be of assistance as it will enable the point of attachment to the dash to be varied in height. The direction plate on the instrument board (Contd.) | ||