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).
Design memorandum with a cross-sectional drawing discussing options for mounting an engine back plate to a frame.
| Identifier | WestWitteringFiles\T\January1929-February1929\ Scan023 | |
| Date | 16th January 1929 guessed | |
| (3) PLAN. The back plate must locate the engine. This might be bent up at the end to form surfaces and have angles bolted to the frame between which the rubber could fit by being bent the same way as the supporting rubber. Perhaps an angle at each end would be better than bolts. Frame. It would be good if we could make a sound one piece job of the angle plate A.{Mr Adams} and the tube C. by an electrically butt welded or pot brazed job as one piece. 6 bolts 5/16ths or 3/8, and ferrules tightened hard up & locked, or spring washers. I like the sch. of 4 & 2 as shewn. B. A.{Mr Adams} Frame. All about .150 thick. Section 9" to 12" long. Flange fitting bolted to engine slides in tube C. cramped and pinned as at present. This is inclined fore & aft but I do not think this matters. Torsion rigidity of each foot is not of any importance because the 4 feet as a cross is so much more rigid. I think you will find this easier to fit, and less loose pieces, than fitting between the flanges and rubber under bolt washers. It would seem that it would be equally effective. The plate A.{Mr Adams} could have a boss pressed on it bored, tapped, and short piece of tube screwed in and brazed. R.{Sir Henry Royce} | ||