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).
Experimental Department weekly report discussing tests on steering pivots, double helical gears, and other components.
| Identifier | ExFiles\Box 2\12\ B002_X168-page153 | |
| Date | 22th July 1913 | |
| Wor{Arthur Wormald - General Works Manager}/HyS/C22713. July 22nd. 1913. EXPERIMENTAL DEPT. "B" Weekly Report. Reports have been sent in on - X. 391- Michelin 2 ton Jack "Verdoni" X. 8 - Double rear brakes (periodical report) X. 303- Pressed steel silencer snout. Steering Pivots. X.168. File As requested by Mr. Royce we will test on the reversal rig, a second pivot P 3372, as soon as we can obtain one. We had a limited number of these and they were all used. This pivot is the one which broke off at the stub. I note that Mr.Royce suspects a flaw in the material at the point of breakage. If Mr.Royce is judging by the peculiar regular series of curved lines and the discoloured surface of the broken pieces, I should like him to examine the broken pivots sent to him previously and he will find the marking and discolouring of the surface very similar. All the pieces that I have broken by fatigue shew these peculiar marks. When a pivot breaks in the U section the lines are always there and always of the same form. Double Helical Bideahart Gears. X. 58. These gears are still running, but still make a noise and so far are no better than our usual gears. The noise they make is a low grating kind of sound. They are wearing a little quieter with use. | ||