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).
The importance of jacking up a wheel before tightening to prevent wear on Rudge-Whitworth and Dunlop wheel serrations.
| Identifier | ExFiles\Box 106\4\ scan0042 | |
| Date | 1st April 1922 | |
| Hs.{Lord Ernest Hives - Chair} c. By.{R.W. Bailey - Chief Engineer} X3599 Roy{Sir Henry Royce}3/W1822. RECEIVED APR 1 1922 In a conversation with Mr. Cowen, who has recently been testing a Goshawk in France fitted with Rudge-Whitworth wheels, he told me that our representative there, Mr. Maddocks, thought there was no need whatever to jack up the wheels when tightening them, which you will recollect is quite at variance with the Maker's instructions. If such an idea is prevalent in the Works this may account for the trouble we are having in the Repair Shop and elsewhere with Dunlop Wheels, which Hm.{Capt. W. Hallam - Head Repairs} tells me in many cases become sloppy on the serrations after 6 to 10,000 miles. I notice in the Rolls-Royce Book of General and Technical Information, dated April 1922, on page 78 we do not emphasise the importance of jacking up the wheel before tightening same, and it has occurred to me that it might be wise to do so in any future issues, as both the Rudge-Whitworth and Dunlop Co. attach great importance to this. We certainly mention the fact on page 73 of the book, when we are talking of removing the wheel, but I think you will agree that it would be wise to further emphasise this point on page 78. Roy.{Sir Henry Royce} | ||