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).
Interesting features, specifically the engine mounting on a Chrysler Plymouth, from the 1931 Motor Show.
| Identifier | Morton\M9\ img061 | |
| Date | 31th October 1931 | |
| ORIGINAL To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Ltd. c. to Eg. Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} c. to Hy.{Tom Haldenby - Plant Engineer} MOTOR SHOW 1931. There are several features exhibited at the motor show which are interesting in so much as they apply to points in which we are at the moment particularly interested. Engine Mounting. On the Chrysler Plymouth 15 HP. car a very ingenious type of engine mounting has been evolved which is similar to our diamond engine mounting. It differs from ours in that the front centre mounting is high up and so arranged that the axis about which the engine can move passes through the point of centre of gravity of the unit; in addition the engine torque is resisted by a cantilever leaf spring pivoted to the clutch casing and supported at the other end to the lower flange of the off side, chassis side member. Further general particulars need not be given here as they have been widely circulated and advertised, but the clever part of the arrangement is the manner in which the control change gear lever and brake lever have been arranged so that they do not move with the engine unit. The gear lever ball and socket instead of being at one with the gearbox is mounted on a chassis cross-member and the gear change lever engages with the selector shafts on the axis of the engine mounting. The hand brake lever is mounted on the same cross member; by this ingenious means all hand brake movement is eliminated and there is only a very slight movement of the gear change lever apparent for large movements of the engine unit. The foot pedals are on a cantilever mounting and are insulated from engine movement. The exhaust system is unsupported until nearly at the rear end where it is slung from a cross member on a universal fixing which prevents the exhaust system in any way controlling the engine movements. Very long rubber radiator connections are used. Taken as a whole it is a very cleverly thought out job in spite of the fact that it is carried out in a very inexpensive manner. Handwritten text: X631 X3531 | ||