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 the results of stress and durability tests on various vehicle components.
| Identifier | ExFiles\Box 119\2\ scan0063 | |
| Date | 15th October 1914 | |
| Piece No | Description | Time | Results | x No | Reference Row 1: Piece No: Description: Frame etc. cont'd from bottom of last page. Time: 30-30, 34-10 Results: These two cracks developed until after they joined together making 1 long split 15" long. Split developed back & fwd until top flange broke. of frame broke. 5" behind front spring bolt. Split then 18" long, running time. x No: x 1168 Reference: Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}/15/L/15.10.14 Row 2: Piece No: F4616 Description: Longer & stronger Buffer Springs in Side Steering tube (round section wire instead of square section) 3" bumps 105' revs. Time: 4-50, 49-45, 45-10 Results: Already reported one broke. A second has broken (3" bumps) (2" "). Springs considerably better average life of old springs 3 hrs 50 mins. x No: x 1211 Reference: Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}/8/L/21.10.14 Row 3: Piece No: F3677/8 Description: Front dumb iron 3" bumps 105' revs. Time: 25-30 Results: near side 2" dumb iron broke. x No: x 1093 Reference: Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}/15/L/21.10.14 Row 4: Piece No: E4294 Description: Ball underneath type suspension having large bronze Balls & pressed steel brkts 2" bumps 105 revs. Time: 8-5 Results: Brkt E4294 is mild steel cold pressing, after running nr side Bkt gave way, bottom lugs & rear top lug broke. (piece not heat treated) x No: x 1290 Reference: Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}/5/L/21.10.14 Row 5: Piece No: E4294 Description: do do do 2" bumps Time: 4-40 Results: nr side pressed steel brkt broken, after, bottom lugs broken off. (brkt heat treated) x No: x 1290 Reference: Wor{Arthur Wormald - General Works Manager}/Hy{Tom Haldenby - Plant Engineer}/4/L/23.10.14 | ||