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).
Series of technical notes on design and production improvements for various vehicle components.
| Identifier | WestWitteringFiles\I\September1922\ Scan25 | |
| Date | 1st June 1919 | |
| (2) bonnet side should be rounded and also the edge of the bonnet side rest. The bonnet lock should have sufficient clearance to engage easily. Further to avoid bending the side of the bonnet and baulking the engagement of the lock I think we should try moving the knife springs well to the centre, say one third of the length of the bonnet from each end. For easy opening the bonnet catches should be arranged with more clearance upwards so that they will disengage without trouble. (8) SLIPPER BENDIX. Mr. Platford has obtained a model of this and will send it to WW. (9) INDUCTION SYSTEM - 40/50. We ought to have a number of exhaust heated throttles running in England on 40/50 chassis. I recommend that we adopt this as soon as possible together with the simplest form of re-evaporative scheme for both English and American production. (10) SHOCK DAMPERS - 40/50 & GOSHAWK. I should like experiments made with Watson's stabilisers, and Gabriel Snubbers, on 40/50. (11) ELECTRICAL EQUIPMENT - 40/50 & GOSHAWK. x4338 x4165 The box of spare lamps should also carry a spare L.T. rocker arm and contact screw and spare dynamo brushes. In conjunction with the Goshawk type switch box for the 40/50 we can easily disconnect the low tension wire on the battery ignition, therefore only require another means of earthing. (12) FUEL FEED. 6.EX. should be fitted with vacuum feed, and Goshawk type petrol gauge. For immediate production on 40/50s we require the side filler and the Boston level gauge. (13) DYNAMO COUPLING - GOSHAWK. X3522 This should have a concentric piece for a lead on. (14) CARBURETTER - GOSHAWK. The taper on the float chamber needle of the production car seems very rapid. I want particular care taken to see that this job is right as we have been troubled with slow flooding. The seating should be given a generous radius and the needle (of slower taper) should bear in the middle of this radius, not at the top edge. Refer to original 40/50 practice. The larger air valve seems to be a definite improvement as regards power and acceleration. I would like Mr. Hives to confirm and push on with getting this into production. It might bear bigger high speed throat and hence give more power. | ||