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).
The material composition and required Brinell hardness for Bentley V front suspension levers.
| Identifier | ExFiles\Box 97\1\ scan0273 | |
| Date | 2nd December 1938 | |
| Rm.{William Robotham - Chief Engineer} Rm{William Robotham - Chief Engineer}/APM. Rm{William Robotham - Chief Engineer}/CR.{Mr Cra???ster / Mr Chichester} Da.{Bernard Day - Chassis Design} BY/HEB.{H. Biraben} BY/Ald.{F. Allwood - Experimental Design} Cgh{W Clough}/EM. Handwritten: 400 . BY/NS.{Norman Scott}12/G.2.12.38. 15s Billet £13n 15s LES what does this mean in cost? Rm{William Robotham - Chief Engineer} BENTLEY V.{VIENNA} FRONT SUSPENSION LEVERS. RE: MEMO Rm{William Robotham - Chief Engineer}/CR.{Mr Cra???ster / Mr Chichester}16/MH.{M. Huckerby}30.11.38. It has now been decided to produce the Torque Arm Upper and Lower Triangle Levers in 1% chromium steel. The composition of the steel is as follows:- .8% to 1% Chromium. .5% to .8% Manganese. .35% to .45% Carbon. These pieces should be heat treated to give a brinell of 200 to 255. Will Cgh{W Clough}/EM. kindly issue a specification to cover this material to enable BY/Ald.{F. Allwood - Experimental Design} to include it on the material chart. S/CMC 426 BY/NS.{Norman Scott} Handwritten: EB 4189 Lof Red | ||