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).
Different schemes and alternatives for an SS exhaust system design.
| Identifier | WestWitteringFiles\T\January1929-February1929\ Scan133 | |
| Date | 9th February 1929 | |
| DY.{F R Danby} FROM DA.{Bernard Day - Chassis Design} Copy to SG{Arthur F. Sidgreaves - MD} HS.{Lord Ernest Hives - Chair} ORIGINAL SECRET DA{Bernard Day - Chassis Design}1/M9.2.29. X7230 SS.{S. Smith} EXHAUST SYSTEM. Herewith we send N. schemes 2823/4/5. which have been made in accordance with R1/M30.1.29. R3/M30.1.29. and R4/M3.2.29. There are a number of experiments shewn on these 3 drawings. N. sch. 2823, shews the front expansion box with a stay to the engine crankcase, the box being constructed of a tube with pressed ends. N. sch. 2825, shews the box made up with various welded joints as R.{Sir Henry Royce} asks for. Which of these forms of construction appears to us to be entirely a matter for the Works as regards cost, convenience, etc. N. sch. 2825. also shews a longitudinal stay which R.{Sir Henry Royce} has also asked for as an alternative, but we think that it will be preferred to use the triangular stay on N.sch.2823. N. scheme 2824, shews the intermediate expansion box and rear silencer in two forms, the lower one being that asked for last, and therefore we expect is the one that should be first tried. There are several alternatives of sliding joint. R.{Sir Henry Royce} seems keen on a plain sliding joint as indicated on the main lower view. We are rather doubtful whether this will be entirely successful, and think we prefer a spherical joint. Here again however we think it would be desirable to try the straight joint first. We are hoping that the front pressing and the pipe can be made in staybrite, and we should be interested to hear whether this is so. Is there difficulty in welding staybrite on to ordinary mild steel? DA.{Bernard Day - Chassis Design} | ||