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).
Proposal for modifications to front brakes, including new shoe designs, servos, and patented schemes for relieving brakes when cornering.
| Identifier | WestWitteringFiles\K\November1923\ Scan92 | |
| Date | 6th November 1923 | |
| TO HS.{Lord Ernest Hives - Chair} (crossed out) FROM R.{Sir Henry Royce} e.{Mr Elliott - Chief Engineer} to GJ. BY.{R.W. Bailey - Chief Engineer} DA.{Bernard Day - Chassis Design} (handwritten) RE. FRONT BRAKES. X9940 / X1559 (handwritten) We are proposing permanent modifications to obtain the necessary wind off. We are proposing to send you a design for shoes which will give more consistent braking. The first design will have floating centres so that the shoes shall each have some fixed proportion of the load. We expect that this alteration alone will make them more consistent and more effective and with an equal condition of surface will not be susceptible to such exact bedding, or change of braking due to wear. We have already proposed that the present brakes on both 40/50 and Goshawk shall be left as near as possible unaltered, except as the experience with the shoes will dictate. The front brakes shall be put on by either of two types of 'servo', and will if we get them and their servos to work consistently be capable of being arranged to give suitable proportionate braking. To clear up all the doubts and difficulties in connection with these brakes we have arranged, and have patented, two or three schemes for relieving both front brakes when turning a corner either to the right or the left. The latest development of this is in the case of the 40/50. e.g. a self adjusting relief which will take the brakes off a given distance no matter where the relative position of the various levers may be due to wear of the 'servo' or wear of the brakes themselves. (1) | ||