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 notes on securing a steering box and the construction of a sheet metal silencer outlet pipe nozzle for a 40/50 HP model.
| Identifier | WestWitteringFiles\D\May1920\ Scan39 | |
| Date | 1st May 1920 | |
| HS.{Lord Ernest Hives - Chair}, DA{Bernard Day - Chassis Design}, & BY.{R.W. Bailey - Chief Engineer} -2- E1/G18/5/20 Contd. The steering pad for carrying the steering box should be carried by a special boss provided on one of the foot brackets, and should be secured by brazing, as shewn - This latter attachment is along the lines suggested by Mr. Day in another of his schemes. Mr. Royce finally concluded that for the main bracket the tubular portion entering the "I" section elbow could be forged all in one piece with the flange portion bolted to the frame. In this latter case it was thought highly desirable by Mr. Royce to make the part out of a hot sheet metal forging. SILENCER OUTLET PIPE NOZZLE (40/50 H.P.) X.3436 X.4072 [Struck through text: Regarding this piece, Mr. Royce instructs that we stop using steel castings at once, and make these outlets from brazing metal cast in one piece while dies are being prepared for a design in sheet metal. Mr. Royce is quite definite that this piece must be made in sheet metal only, and the design should be as illustrated in the sketch below -] See R8/G15/5/20 for latest notes re silencer Nozzle, Cut-out Flange, and Engine Foot Bkts. The sheet metal halves of the nozzle are secured together by welding round the edges and the flat sides are prevented from bursting by three bolts in the position shown, and about half a dozen keys welded into the mouth edges. The key is formed of a piece of flat material reduced in thickness for a certain width on each side, and fitted into a groove in the snout end in such a manner that the projections on the key retain the sheet metal and prevent it from opening. The assembled silencer snout should be secured to the (Contd.) | ||