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 Goshawk 11A distribution board cover and the appropriate fuse wire supply.
| Identifier | ExFiles\Box 50\1\ Scan169 | |
| Date | 5th May 1922 | |
| To Hy. {Tom Haldenby - Plant Engineer} from E. {Mr Elliott - Chief Engineer} c. to C.J. Wor. {Arthur Wormald - General Works Manager} c. to Hs. {Lord Ernest Hives - Chair} MFG. c. to EP. {G. Eric Platford - Chief Quality Engineer} X4410 X.2515 GOSHAWK 11A DISTRIBUTION BOARD. RECEIVED On consideration of the cover of the distribution board Mr. Royce is still inclined to think that we ought to have an aluminium pressing, and we send you herewith drawing No. LeC 1587 which should supercede the previous drawing dealing with this matter. The metal cover is guided on to the board so as to avoid short circuits by 3 little bakelite guides secured with screws to the inside of the cover. Thus it will be seen that not only are short circuits avoided by properly guiding the cover, but a further provision of safety is made by using bakelite guides which insulate the cover from the studs at a time when a short is likely to take place. The little side flats or tables formed on these bakelite guides are to act as features for squaring up the cover correctly for height by engaging with the points of the studs before they enter the hole in the guides. With regard to the fuse wire Mr. Royce does not wish to have 2 bobbins or to supply 2 sizes of fuse wire. He thinks the fine variety only should be supplied, and that the operator should have enough common sense to twist 4 or 5 strands of the fuse wire together, should the main fuse blow, if he had not any heavier wire available. E. {Mr Elliott - Chief Engineer} | ||