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 new rear spring designs ('N' Scheme 333) and manufacturing discussions.
| Identifier | ExFiles\Box 80\2\ scan0141 | |
| Date | 3rd May 1920 | |
| To R from DA.{Bernard Day - Chassis Design} ["R" is crossed out] Copy to DR. ["DR" is crossed out] Copy to EFC. [Handwritten]: X.26286 DAL/CB 3-5-20. [Stamp]: RECEIVED 7 MAI 1920 X.26286 RE REAR SPRINGS. [Handwritten]: X.4036 We send herewith a print of "N" Scheme 333 shewing the proposed new type of rear spring with more leaves and nearly square ends. We have been a little longer than we anticipated over this, but we found a certain amount of difficulty in designing the clips. The suggestions for the latter are shewn on "N" Scheme 334. We had Mr Woodhead over last Friday and discussed these and the present springs with him. He was very amicable and agreed practically to do almost anything we liked. One curious thing was that he preferred the solid eye to the rolled eye, saying that he can do it more easily and as cheaply as the rolled eye, because of the special plant they have put down. We have therefore shewn this type of eye because we supposed that you would prefer this if the question of cost were not in it. Mr Woodhead has agreed to grinding the plates all over and keeping them flat, and to bending them all to the same curvature, so that there is little nip in the upper plates, and little pull in the bottom plate. In connection with this Mr Hives will probably report to you that we have a pair of thick leave springs, which were those originally designed and fitted to 7CA and have been running about for a very long time. These springs have slightly broader ends than the present, with [Handwritten in margin]: X.682 [Footer text, upside down]: R.R. 235 (100) T (R.F.) S.16. 6.S.'19. (C) 2460. | ||