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).
Describing an apparatus to determine how quickly a wheel stops upon locking.
| Identifier | ExFiles\Box 4\1\ 01-page205 | |
| Date | 4th January 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} <30P Hs{Lord Ernest Hives - Chair}/AFM.{Anthony F. Martindale}17/KW.4.1.35. Apparatus to determine how quickly a Wheel stops on locking the Road wheels. Continuing with our Bentley and SpectreCodename for Phantom III axle and chassis destruction tests, we now wish to determine the magnitude of certain inertia forces to which we know cars are subjected on the road. To make these measurements we want to fit to one front wheel of Bentley 3-B-IV certain electrical apparatus detailed on drawings Hs.{Lord Ernest Hives - Chair}1686 to Hs.{Lord Ernest Hives - Chair}1693 inclusive, attached hereto. Although not very complicated, it will require careful adjustment if it is to work satisfactorily. The apparatus consists of a carrier arm to be fixed by bolts to the carrier plate of the drum. This arm is in two parts, each insulated from the other and also from the carrier plate. Each part holds a collecting brush, the brushes making contact with ten contact bolts on the wheel, arranged in two rows. It is important that this arm be very rigid. The collecting brushes are fully detailed on the drawings herewith, but these drawings should be taken as suggestions as it is possible that they are unnecessarily complicated. Hs{Lord Ernest Hives - Chair}/A.F.Martindale. | ||