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).
Log sheet detailing breakages on springs and steering components for a 40/50 model.
| Identifier | ExFiles\Box 119\2\ scan0180 | |
| Date | 2nd January 1924 | |
| SHEET 2. SPRINGS ANCHORED AT REAR AND SHACKLED AT FRONT. Standard 40/50 Steering Box - Pendulum and Side Steering Tube - No Radius Rods. | Total running time. hrs.mins. | Piece No | Running time. hrs.mins | BREAKAGES. Description and Remarks. | |---|---|---|---| | 50 58 | Lemoine | 18 21 | O.S. front spring top leaf broken 2 3/4" to rear of centre bolt. Brinell at fracture = 388. Replaced by Woodhead spring. | | | F.4614 | 18 21 | Front buffer spring in front joint of side steering tube broken. | | | F.4616 | 18 21 | Rear buffer spring in rear joint of side steering tube broken. | | 51 30 | Lemoine | 18 53 | N.S. front spring top leaf broken 2 3/4" to front of centre bolt. Brinell at fracture = 341. | | 55 26 | F.2888 | 55 26 | O.S. flange of 3rd. Cross Member broken. | | 56 15 | K.5422 | ------ | N.S. rear spring clip broken. | | 57 5 | F.4636 | 5 35 | N.S. front spring top leaf broken 2" to front of centre bolt. Replaced by Woodhead spring. | | 59 25 | ------ | 26 48 | 1/2" bolt sheared in O.S. spring anchorage. | | 62 50 | F.4636 | 5 45 | N.S. front spring top leaf broken 2" to rear of centre bolt. Replaced by Woodhead spring. | | 65 0 | F.4826 | 65 0 | O.S. diagonal stay lug on 1st. Cross member broken. | | 66 30 | F.4636 | 15 0 | O.S. front spring top leaf broken 2 1/2" to rear of centre bolt. Replaced by Woodhead spring. | | ||