Design alterations for a tank's standpipe flange, lid, sump, and drain plug, accompanied by sketches.
| Identifier | ExFiles\Box 75\2\ scan0105 | |
| Date | 28th August 1920 | |
| Contd. -2- It is assumed that the complete stand pipe flange assembled with screws and screwed ring will be twisted bodily into the screwed flange on the tank. Referring now to the lid {A. J. Lidsey} carrying the stand pipe, this should be made with five fixing screws only, so that a central boss can be left between the two rear screws for a plug, to allow of the use of a gauge stick. The bosses for the petrol and air pipe on this casting should be made radially, somewhat as in sketch. Referring now to the lower casting forming the sump of the tank, this is located on the centre line, and has become symmetrica - The drain plug should be formed with a lip for enclosing the joint washer. This alteration will make the boss on the bottom castings of simple form. It is desired to have more clearance between the indicator float and the stand pipe, so as to avoid damage to the Contd. | ||
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).