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).
Lack of lateral adjustment for 20HP rubber-mounted engine feet and proposed solutions.
| Identifier | WestWitteringFiles\U\2January1930-September1930\ Scan004 | |
| Date | 4th January 1930 | |
| K.{Mr Kilner} FROM E.{Mr Elliott - Chief Engineer} Copy to SG.{Arthur F. Sidgreaves - MD} Copy to BY.{R.W. Bailey - Chief Engineer} Copy to HS.{Lord Ernest Hives - Chair} 20HP. RUBBER MOUNTED ENGINE FEET. In connection with the above a difficulty has arisen in that no adjustment was provided laterally for engine line-ability or frame width variation. We do not like to use packings between the frame and the rubber as these would be so large in area, and we do not wish to split one of the forgings on each side and clip with bolts to either the engine or the shoe tubular extensions as suggested by BY.{R.W. Bailey - Chief Engineer} owing to the added complication. LeC. 2777. attached shews the screwed and brazed connection to the shoe replaced by a bolted oblique flange as on Phantom 2. rear foot, and this we suggest can have packings inserted for the required adjustment. We admit that the adjustment is not so convenient, but it is done once only when the chassis is built. The bolted flange was used on Phantom 2. because it was thought that the threaded boss was not sufficiently practical on an inclined base. This of course also applies to the design in question. LeC. 2777. also shews the centres of the bolted coupling increased from 11.875 to 12.125". This is permitted by the difference in width between the palms on the old standard feet and these new ones with two bolts. E.{Mr Elliott - Chief Engineer} | ||