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 for attaching the front suspension to the main chassis frame for the Wraith II model.
| Identifier | ExFiles\Box 8\7\ 07-page03 | |
| Date | 4th April 1936 | |
| To BY.{R.W. Bailey - Chief Engineer} Copy to Da.{Bernard Day - Chassis Design} Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} RHE. XT044 E/EV.{Ivan Evernden - coachwork}2/MN.4.4.36. WRAITH II. Attachment of Front Suspension to Frame. N.Sch On Lec. 4734 herewith we show you the design of the attachment of the front suspension to the main chassis frame for Wraith II. As our previous schemes will have illustrated, the frame finishes prior to the front suspension pots, and a banjo-like forging to carry these pots is bolted into the box section of the chassis frame. The frame is reinforced on its outer face by pancake-like drop forgings, which are electrically spot welded at the point indicated, and it will be necessary to supply these to the frame makers. Large bosses are provided to enable the drilling to be done by means of a jig with the main forging in position after the frames arrive at the Works. Inside the frame at either side of the main forging are sheet steel distance pieces for adjustment purposes, and these are held in position by two small bolts, so that the forging may be removed and replaced without disturbing the packing. It is not intended that the forging should be a good fit with the vertical end of the chassis frame, but should be as drawn. We have shown on this scheme the large attachment bolts as reamed parallel bolts We wish to try this scheme before moving on to something perhaps a little more nearly perfect and considerably more expensive. Ev.{Ivan Evernden - coachwork} Att: Lec.4734. N.Sch. | ||