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 of the L.H. P.2 Sump Drain Plug, comparing a direct screw design with a newer version using an insert.
| Identifier | ExFiles\Box 14\1\ Scan017 | |
| Date | 21th August 1930 | |
| X7000 Hy.{Tom Haldenby - Plant Engineer} from E.{Mr Elliott - Chief Engineer} c. Sg.{Arthur F. Sidgreaves - MD} c. Wor.{Arthur Wormald - General Works Manager} Hs.{Lord Ernest Hives - Chair} E1/M21.8.30. X.7000 X.719D L.H. P.2. SUMP DRAIN PLUG - LeC.2788 re Ry1/G20.8.30. --- The original of LeC.2788 shewed the sump drain plug screwed into the aluminium direct as R.{Sir Henry Royce} now desired it. The design committee in being during the early part of this year asked for and approved of a design with insert. There is another L.H. P.2. design - LeC.2791. Auto Klean Filter, in which an insert was used for the sludge plug in deference to the committee's views. This insert also is not locked unless you have locked it, and might well be dispensed with in a similar manner. E.{Mr Elliott - Chief Engineer} | ||