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 changes to the rear spring anchor fitting to reduce stress and weight.
| Identifier | ExFiles\Box 80\3\ scan0035 | |
| Date | 24th March 1914 | |
| X.1179. COPY. To J.{Mr Johnson W.M.} from R.{Sir Henry Royce} Copy to El Copy to Wor.{Arthur Wormald - General Works Manager} Copy to Da.{Bernard Day - Chassis Design} Hy{Tom Haldenby - Plant Engineer}2414 R8/P 24. 3. 14. X.49 X.2628 X.1179. Rear Spring - Forward end anchorage with addition of stiffener & modified bracket. (See letter to El) With reference to the anchor fitting for the front end of the rear spring, I have got Mr. Elliott to alter the design somewhat, which will still further reduce the metal and somewhat reduce the stress. We are very anxious that every ounce of steel in springs shall be equally stressed, and in the design of this particular end; I think you will find on analyzing it, that it will work out lighter for a given stress in the way we now show it compared with our present practice. R.{Sir Henry Royce} X.1232. With reference to the anchorage of the front end of the rear springs, you will notice that we have still further improved the design, and also considerably shortened it by using a solid eye to the front end of the rear spring. You will also notice that we do not show a second plate carried so far forward, and as it is not difficult to produce these solid eyes by the jumping process, I am sure you will find that for a good strength the spring will work out lighter. MADE AT CROXLEY [Handwritten in left margin: X1179] [Printed at top left: 236A (150 H) (V.{VIENNA} V.{VIENNA} 681 12-3-14) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 0414.] | ||