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).
Discussions on pistons, axles, and gear manufacturing following a visit to West Wittering.
| Identifier | Morton\M11\ img112 | |
| Date | 9th January 1919 | |
| To WOR.{Arthur Wormald - General Works Manager} from E.{Mr Elliott - Chief Engineer} Copy to HX. " DA.{Bernard Day - Chassis Design} " MH.{M. Huckerby} " EPC. " EP.{G. Eric Platford - Chief Quality Engineer} RE VISIT OF MESSRS. WORMALD AND HIVES TO WEST WITTERINGHenry Royce's home town OF 12th AND 13th DECEMBER. In connection with the above, there are a few notes concerning matters not included in report R2/G181218 on the 40/50 HP. chassis, and as these might be useful to you as memoranda, I set them out as follows:- PISTONS. Mr. Hives pointed out that the level transmission 40/50 H.P. shop car is at present running with a light domed type cast iron piston which has a tendency to detonate and carbon up quickly. Mr. Royce instructed that aluminium pistons should be put into this car. AXLES. In discussing the old shop car, it was mentioned that the axle transmission shaft on one of the earlier models of chassis gives trouble by shearing off near the keys which drive the road wheel through the agency of the coupling. Mr. Royce instructed that the number of keys should be increased to about twelve to minimise the local stress effects, due to the roots of the keys themselves which start the breakage by localisation of stress. (I am not quite sure that this point has been correctly described as applying to an early 40/50 HP. model, but Mr. Hives, who brought the information, will know) MANUFACTURE OF GEARS. In discussing the question of the manufacturing of gears with Mr. Wormald, Mr. Royce expressed the desire that we should endeavour to get ordinary spurs and double helical gears made by means of the Sunderland system. These double helical wheels would be of great use in driving the side shaft of the gear box, since they cause no end thrust. The question of obtaining spiral bevels for chassis axles was raised, and Mr. Royce considered that probably Mr. Nadin should investigate this matter with a view to the advisability of obtaining a Gleason or a Bilgram spiral bevel cutter. The latter machine recommends itself as operating on the more perfect principle. (Contd.) | ||