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).
Bentley Chassis 6-B-1V, detailing an issue with the servo motor and material alterations to the levers.
| Identifier | ExFiles\Box 102\6\ scan0211 | |
| Date | 12th November 1936 | |
| Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} C. Hs.{Lord Ernest Hives - Chair} C. E.{Mr Elliott - Chief Engineer} BY.3/G.12.11.36. GWH{George W. Hancock - Head Chateauroux} BENTLEY CHASSIS - RE: REPORT ON CHASSIS 6-B-1V. (ref. RHC{R. H. Coverley - Production Engineer}/RH.{R. Hollingworth}1/AP.6.11.36) In going through the above and coming to the servo motor on page 6, it appeared to me that something was wrong with our production details, but on reference to the parts I find that the servo on this job is a purely experimental one, drawings having been prepared by the Experimental Dept, the numbers being RS{Sir Henry Royce's Secretary}1631 and RS{Sir Henry Royce's Secretary}1589. Approximately a year ago we altered the material of the levers from a 45 ton core case hardened material (SZN) to a 65 ton core case hardened material (SZNX), and in addition we increased the thickness from an average of .025 to an average of .045. All the details which are obsolete show the early materials. We are making an alteration in case these parts are used again, so that the correct material with the correct depth of case hardening will be obtained. BY.{R.W. Bailey - Chief Engineer} Rm{William Robotham - Chief Engineer} | ||