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).
Directive to modify the 20 HP chassis front wheel brakes, replacing damping pads with a groove on the drum.
| Identifier | ExFiles\Box 5\3\ 03-page286 | |
| Date | 27th February 1930 | |
| BY/FHD. (struck through) c. Eft. (struck through) c. Hs{Lord Ernest Hives - Chair}/lm. c. BOY/HE. (struck through) K540 (handwritten) BY5/G.27.2.30. 20 HP. CHASSIS - FRONT WHEEL BRAKES. Please note that we should bring the 20 HP. chassis into line with the 40/50 HP. so far as the damping on the outside of the drum is concerned. This means that we will delete the damping pads which are held on to the outside of the drum by the spring, and instead of these we form a groove on the drum near the open end of same and fit the spring directly on to the drum. We should bring this modification in as soon as possible. Will the Works therefore stop producing the damping segments for the outside of thedrum, and as soon as they get particulars from the D.O. start producing the groove in the correct position on the drum itself. Will the Experimental Department kindly issue a standardisation sheet to cover this. BY.{R.W. Bailey - Chief Engineer} By (handwritten initials) | ||