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).
Proposed construction methods for tanks, side plates, and tubes.
| Identifier | ExFiles\Box 38\2\ Scan003 | |
| Date | 19th December 1918 | |
| -2- R5/G191218. wires between each block running through to the bottom and top tanks, and to the side plates, these to be carried out in the way suggested by me, forming alterantely complete loops. We propose also putting in hand for Mr. Johnson's approval, a top tank pressed all in one piece, instead of being built up from flat pieces of sheet. We are not sure whether this is going to prove a success owing to the anticipated difficulty of getting the corners sufficiently sharp and the plates sufficiently flat, to give a good R.R. appearance. As an alternative, we propose adopting a somewhat improved construction by using small brass angles at the corners within the tank, instead of a simple soldering wire with a mass of solder, as in the present practice. It was also decided that there should be, if possible, only a single side plate instead of a double side plate, as at present arranged, but we are not sure whether this will permit of satisfactory construction. It was decided that standard tubes were to be adopted these are the 10 m/m ones 120 m/m long, that the ferrules can be any axial length to give sound soldering. The expanded ends that I have seen do not give sufficient area of soldered surface. One suggest that 1/4" would be about right. This could be increased by longer ferrules near the tanks and side plates, if thought desirable. I am going to take up a strong position, as I blame myself for being insufficiently exacting in the past. It was settled that Mr. Foy should make up several contd:- | ||