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 sample spanners and the contents of the associated tool kit.
| Identifier | ExFiles\Box 46\1\ Scan030 | |
| Date | 6th October 1924 | |
| To BY.{R.W. Bailey - Chief Engineer} from R.{Sir Henry Royce} c. to CJ. Hs.{Lord Ernest Hives - Chair} 44083 R1/M6.10.24. RE. SPANNERS. X.1027. X.4083. With regard to the sample spanners made to our LeC.design, I think these are very nice, and do not see any way in which they can now be improved except by somewhat reducing the thickness. I therefore recommend that the dies should be 'let' together whenever possible, and that the drop forgers should be paid by the piece, and not by the weight, so as to prevent as far as possible any growth in weight. We take it that the spanners you sent us represent one set of the 40/50., together with one set of the 20 HP. equipment, as there are two of either size, and in two instances, three. The largest spanner of all, namely, the 11/16" I do not think is required, and was not intended to be included in the kit. We think that the large shifting spanner should be sufficient for all requirements above t". R.{Sir Henry Royce} | ||