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).
Issues with a modification to prevent 'wheel static' and proposing a new solution involving a contact brush.
| Identifier | ExFiles\Box 63\2\ scan0217 | |
| Date | 7th May 1936 | |
| Br.{T. E. Bellringer - Repair Manager} (Cricklewood) From Hs{Lord Ernest Hives - Chair}/Wst. C. to Cx.{Major Len W. Cox - Advertising Manager} r 6183. Hs{Lord Ernest Hives - Chair}/Wst.9/MJ.7.5.36. Re. "Wheel Static" on Cars. Replying to Br.2/S.6.5.36. We note the modification you have carried out to prevent the above, but we rather think that it is a process to be deprecated in view of the fact that the dust covers are also water excluders, and machining away any clearance at this point must make the brakes more susceptible to the collection of water. We are investigating here the possibility of providing a small contact brush mounted on the cap over the hub in such a way that it connects the centre spindle of the wheel to the frame fittings and thus prevents the formation of any static potential between the brake drum and the brake shoes. We hope to give you further details of the scheme we propose when further tests have been carried out. Hs{Lord Ernest Hives - Chair}/H.E.West. | ||