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).
Test results table for sheared spring bolts, detailing piece numbers and time to failure.
| Identifier | ExFiles\Box 74\1\ scan0168 | |
| Date | 30th April 1914 guessed | |
| Wor{Arthur Wormald - General Works Manager}/Mcr1/L30414. SPRING BOLTS (2) Piece No. Description. Time. Hrs. Mins. Results. Reference. K5900. Front Spring Centre Bolt. near side. 46 sheared. Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}3/L26913. K5900. ditto. 57 " " K5900. ditto. 28 " " K5900. ditto. 26 " " K5900. ditto. 3 - 21 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}27/L61113. K5900. ditto. 4 - 10 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}23/M111213. K5900. ditto. 1 - 27 " " K5900. ditto. 55 " " K5900. ditto. 3 - 30 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}20/L3314. K5900. ditto. 1 - 0 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}9/B30314. K5900. Front Spring Centre Bolt. off side. 7 - 45 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}1/C18913. K5900. ditto. 3 - 15 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}11/L9214. K5900. ditto. 2 - 10 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}3/L26913. K5900. ditto. 59 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}27/L61113. K5900. ditto. 1 - 56 " Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}5/L201113. | ||